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Sökning: L773:0954 6111 OR L773:1532 3064

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1.
  • Björnsson, E., et al. (författare)
  • Eosinophil peroxidase : a new serum marker of atopy and bronchial hyper-responsiveness
  • 1996
  • Ingår i: Respiratory Medicine. - 0954-6111 .- 1532-3064. ; 90:1, s. 39-46
  • Tidskriftsartikel (refereegranskat)abstract
    • Do markers of eosinophil activation differ in their ability to detect subjects with atopy or bronchial hyper-responsiveness (BHR)? Comparisons of serum levels of eosinophil peroxidase (S-EPO), of eosinophil cationic protein (S-ECP) and the blood eosinophil count (B-Eos) have been made between 154 subjects aged 20-44 years, participating in the European Community Respiratory Health Survey in Uppsala, Sweden. Subjects with atopy had significantly higher levels of S-EPO and S-ECP than those without atopy (P <0 center dot 001). Subjects with BHR had significantly higher levels of S-EPO (P <0 center dot 001) and B-Eos (P <0 center dot 01) than subjects without BHR. Persons reporting asthma-related symptoms had significantly higher levels of S-EPO and B-Eos than subjects without such symptoms (P <0 center dot 001 and P <0 center dot 01, respectively). Asthma symptom score correlated significantly to S-EPO (r = 0 center dot 26, P <0 center dot 01), S-ECP (r = 0 center dot 20, P <0 center dot 05) and B-Eos (r = 0 center dot 18, P <0 center dot 05). Finally, S-EPO was significantly more sensitive than S-ECP for detecting subjects with BHR (P <0 center dot 05) and significantly more sensitive than B-Eos for detecting both subjects with BHR and subjects with a combination of atopy and BHR (P <0 center dot 05). It is concluded that S-EPO is a promising marker with a higher sensitivity for BHR than S-ECP or B-Eos. Further studies are needed to define the value of S-EPO when following disease activity.
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2.
  • Dahlén, Inger, et al. (författare)
  • Inflammatory markers in acute exacerbations of obstructive pulmonary disease : predictive value in relation to smoking history
  • 1999
  • Ingår i: Respiratory Medicine. - 0954-6111 .- 1532-3064. ; 93:10, s. 744-751
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study was to investigate the relationship between the effect of emergency treatment and inflammatory markers in patients with acute exacerbations of obstructive pulmonary disease, especially with respect to smoking history. We investigated 50 unselected patients with acute bronchial obstruction. Blood, urine and sputum samples were taken and analysed for eosinophil and neutrophil markers. The patients were observed for at least 2 h and recordings of forced expiratory volume in 1 s (FEV1) were taken. They were re-examined after 1 and 4 weeks. The absolute levels of inflammatory markers did not differ significantly between non- or short-term smokers (< or = 5 pack-years) and long-term smokers (> 5 pack-years) with the exception of myeloperoxidase in serum (S-MPO), which was higher in long-term smokers. The patients with higher levels of eosinophil markers before emergency treatment experienced a greater improvement in lung function. In non- or short-term smokers this relationship was found in blood and urine, whereas in long-term smokers it was seen in sputum. No correlation was found between neutrophil markers and changes in lung function. We conclude that patients with obstructive pulmonary disease with acute exacerbations and high levels of eosinophil markers respond well to treatment.
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3.
  • Larsson, L-G, et al. (författare)
  • Symptoms related to snoring and sleep apnoea in subjects with chronic bronchitis : report from the Obstructive Lung Disease in Northern Sweden study
  • 1997
  • Ingår i: Respiratory Medicine. - 0954-6111 .- 1532-3064. ; 91:1, s. 5-12
  • Tidskriftsartikel (refereegranskat)abstract
    • To assess the relationship between chronic bronchitis and obstructive sleep apnoea, a postal survey was performed. A postal questionnaire was sent to 523 subjects identified as having chronic bronchitis or long-standing cough and sputum production in the Obstructive Lung Disease in Northern Sweden Study I (OLIN I). In 1986-88, all 6610 adults born in 1919-20, 1934-35 and 1949-50 living in representative areas in Northern Sweden were screened for airway diseases according to different methods. A random sample of healthy adults identified in the screening were chosen as references (n = 625). Subjects were asked about a variety of airway symptoms, smoking habits and symptoms related to obstructive sleep apnoea syndrome (OSAS). In the bronchitic group, 20% did not report bronchitic symptoms in the present study, and 26% of the formerly healthy reference group reported at least one bronchitic symptom in the present study. Snoring, apnoea and liability to 'nod off' during activity were much more common in the bronchitic group in both men and women, and most common in men, as expected. Snoring was reported by 29% of the men in the bronchitic group and by 14% in the reference group. In women, the corresponding figures were 14 and 8%, respectively, and for apnoea, the figures were 25 vs. 11% in men and 6 vs. 4% in women. The prevalence of OSAS symptoms was similar in subjects with attacks of breathlessness, long-standing cough, sputum production and recurrent wheezing. Bronchitic symptoms may influence quality of sleep and contribute to daytime tiredness, but this does not fully explain the high prevalence of snoring and apnoea reported by subjects in this cohort. This study indicates a positive correlation between chronic bronchitis and OSAS, but sleep studies are required to confirm this
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4.
  • Lindberg, Malou, et al. (författare)
  • Asthma nurse practice : a resource-effective approach in asthma management
  • 1999
  • Ingår i: Respiratory Medicine. - 0954-6111 .- 1532-3064. ; 93:8, s. 584-588
  • Tidskriftsartikel (refereegranskat)abstract
    • The objective of this study was to evaluate the efficacy of an Asthma Nurse Practice (ANP) in primary health care.A 12-month (September 1994–August 1995) open, prospective intervention study with pre- and post-test comparisons was performed on patients with asthma treated at a primary care centre in Sweden.Sixty-three patients with mild or moderate asthma participated and medication, structured follow-up and education in self-management at an ANP were assessed over a 12-month period.The main outcome measures assessed were pulmonary function, eosinophil cationic protein (ECP) in serum, respiratory symptoms, patient knowledge of asthma and emergency visits.ANP in primary health care increased patient knowledge of asthma and medication. The number of patients with nocturnal symptoms decreased significantly. Pulmonary function was improved: vital capacity (VC) 98–106, forced expiratory volume in 1 sec (FEV1) 93–100 and peak expiratory flow (PEF) 98–115% of predicted (P<0·001). Variation in PEF fell from 21 to 12% (P<0·001). ECP was significantly reduced. Visits to the emergency room were 60% fewer during the year of intervention (P<0·01).In conclusion, patients attending an Asthma Nurse Practice, comprising a structured programme for asthma management, improve their knowledge and asthma control.
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5.
  • Ställberg, Björn, et al. (författare)
  • Living with asthma in Sweden - The ALMA study
  • 2003
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 97:7, s. 835-843
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Recently performed studies have found a number of limitations in the daily lives of asthmatics, and a large disparity between the perception of the sufferers and what health care professionals believe matters to asthmatics. Aim: What matters to Swedish asthma patients, what medicines do they use, and are they compliant with given prescriptions? A further aim was to compare perceptions about asthma and asthma management in asthmatics and among Swedish general practitioners (GP). Design: A structured telephone interview of a representative sample of Swedish asthmatics, and a mailed questionnaire survey among GPs from different parts of Sweden. Methods: Screening by telephone of a random sample of 10,350 subjects aged 18-45. Of those, 240 were subsequently selected for a detailed structured telephone interview about their asthma. A mailed structured questionnaire containing similar questions to those asked of the asthmatics was sent to 600 GPs, and 139 returned completed answers. Results: 16% of the asthmatics reported (asthma) symptoms occurring every day during the previous month. Nocturnal symptoms at least twice per week were reported by 19%. Both these were reported by considerably higher proportions of the asthmatics than the GPs had expected. A large majority classified their disease as mild or very mild, although great majority reported frequent symptoms. Activities or situations which caused symptoms of asthma often or "now and then" were physical exertion, 67%, bad weather, 59%, contact with animals/pets, 58%, and visits to cafés or restaurants, 36%, and several asthmatics avoided these activities due to their asthma. Conclusion: A great majority of asthmatics report a large number of symptoms and limitations in their daily living in proportions which were roughly expected by the GPs. © 2003 Elsevier Science Ltd. All rights reserved.
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6.
  • Zetterström, Olle, et al. (författare)
  • The whole story : Treatment outcomes with Symbicort®
  • 2002
  • Ingår i: Respiratory Medicine. - 0954-6111 .- 1532-3064. ; 96:SUPPL. 1
  • Forskningsöversikt (refereegranskat)abstract
    • Asthma is a chronic inflammatory disorder of the airways that has a considerable socioeconomic impact. Asthma management guidelines have been introduced to help provide better long-term control of asthma. Although recommended guidelines may increase the direct medication costs, the overall direct costs of asthma may be reduced due to fewer exacerbations. In addition, indirect costs due to lost productivity and mortality are reduced and patients have an improved quality of life. Inhaled corticosteroids are first-line therapy in the treatment of persistent asthma. Against this background, we have assessed the cost-effectiveness of Symbicort® (budesonide and formoterol in a single inhaler), a treatment that provides better control of asthma compared with budesonide alone. While the prescribing costs of Symbicort® were found to be higher than for budesonide alone, these were partially offset by reduced costs due to fewer asthma exacerbations and a reduced need for other medications. Combined long-term therapy with budesonide and formoterol also improves patient quality of life compared with budesonide alone. Two other factors associated with asthma treatment success and cost-effectiveness are patient/physician education and good patient adherence to prescribed therapy. The introduction of a single inhaler that is easy to use in simple treatment regimens may improve patient adherence to prescribed medication, thus resulting in improved asthma control and fewer exacerbations. Treatment with Symbicort® is more cost-effective than treatment with budesonide alone. © 2002 Elsevier Science Ltd.
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7.
  • Ahlström-Emanuelsson, Cecilia, et al. (författare)
  • Effects of topical formoterol alone and in combination with budesonide in a pollen season model of allergic rhinitis.
  • 2007
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 101:6, s. 1106-1112
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: beta(2)-Agonists may exert mast cell stabilizing and anti-plasma exudation effects. White available data suggest no or only marginal effects of beta(2)-agonists on symptoms of allergic rhinitis, little is known about whether these drugs may add to the efficacy of anti-rhinitis drugs. Objective: To examine effects of a beta(2)-agonist, alone and in combination with an intranasal glucocorticosteroid, on symptoms and signs of allergic rhinitis. Methods: Patients were examined in a pollen season model. Budesonide 64 mu g, alone and in combination with formoterot 9 mu g, as well as formoterot 9 mu g alone was given in a placebo-controlled and crossover design. After 7 days of treatment, the patients received allergen challenges for 7 days. Symptoms and nasal peak inspiratory flow (PIF) were recorded. Nasal lavages with and without histamine were carried out at the end of each challenge series. These lavages were analysed for tryptase, eosinophil cationic protein (ECP), and alpha(2)-macroglobutin as indices of mast cell activity, eosinophil activity, and plasma exudation, respectively. Results: Budesonide reduced symptoms of allergic rhinitis and improved nasal PIF in the morning, in the evening as well as post allergen challenge. Formoterol alone did not affect symptoms or nasal PIF and did not affect the efficacy of budesonide. Tryptase, ECP, and alpha(2)-macroglobutin were significantly reduced by budesonide. Formoterol alone did not affect these indices and did not affect the anti-inflammatory effect of budesonide. Conclusion: The present dose of formoterot does not affect symptoms and inflammatory signs of allergic rhinitis and does not add to the efficacy of topical budesonide.
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8.
  • Akbarshahi, Hamid, et al. (författare)
  • Acute lung injury in acute pancreatitis - Awaiting the big leap.
  • 2012
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 106:9, s. 1199-1210
  • Forskningsöversikt (refereegranskat)abstract
    • Acute lung injury is a severe complication to acute pancreatitis and a significant health problem associated with a considerable mortality. Underlying mechanisms are complex and poorly understood, although recent insights have identified several inflammatory profiles and cellular components involved to varying degrees during different phases of pancreatitis exacerbation and acute lung injury. This review aims to highlight the current understanding of the inflammatory and cellular components involved in and responsible for the associations of acute pancreatitis and acute lung injury, with the hope of thereby providing an increased understanding of the underlying mechanisms. In addition, novel experimental models of modulating the pancreatitis-associated acute lung injury are presented, interventions that may be of potential future clinical value.
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9.
  • Akner, Gunnar, et al. (författare)
  • Undernutrition state in patients with chronic obstructive pulmonary disease : A critical appraisal on diagnostics and treatment
  • 2016
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 117, s. 81-91
  • Tidskriftsartikel (refereegranskat)abstract
    • ‘Undernutrition state’ (UNS) is an ominous condition, in particular when associated with chronic obstructive pulmonary disease (COPD). In this review we discuss pathophysiological mechanisms and how UNS is defined and diagnosed. It seems unlikely that COPD-patients with established UNS have similar potential of reversibility (treatability) upon nutrition interventions as patients at a risk of developing such a condition, i.e. patients with low energy/nutrient intake, since pathophysiological, biochemical and metabolic conditions may differ substantially.We summarize the results of 7 of 17 published randomized controlled trials of nutritional supplementation in COPD-patients with defined UNS in the latest Cochrane review (2012). We thus excluded 10 of 17 trials included in review (2012), mostly because those studies also included patients with ’risk of’ UNS.The seven included trials exhibit extensive heterogeneity for all studied variables. Most studies did not show beneficial effects of nutritional supplementation, although some reported minor increase in body weight and physical function of unclear clinical relevance.In contrast to the Cochrane review we conclude that it is difficult to draw firm conclusions regarding the effect of nutritional supplements in patients with COPD and UNS. Improved knowledge in this area is of utmost importance and some factors which should be considered in future studies are suggested.
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10.
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11.
  • Almqvist, Linnea, et al. (författare)
  • No remission in 60% of those with childhood-onset asthma : a population-based cohort followed from 8 to 28 years of age
  • 2024
  • Ingår i: Respiratory Medicine. - : Saunders Elsevier. - 0954-6111 .- 1532-3064. ; 224
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Although remission occur, childhood-onset asthma may persist until adulthood. Since few longitudinal population-based studies have followed a cohort from childhood until adulthood, the knowledge on predictors of persistence of asthma is sparse.Aim: To estimate persistence of asthma from 8 to 28 years and its associated factors. Methods: Within the OLIN (Obstructive Lung Disease in Northern Sweden) studies, a cohort was recruited in 1996 (age 8y, n = 3430) and followed annually with questionnaires about asthma and risk factors until 19y. Clinical examinations included skin prick tests (at 8, 12 and 19y) and lung function tests (17 and 19y) whereof a subsample performed bronchial hyperreactivity test. We identified n = 248 with asthma at 8y whereof 170 (69%) participated in a follow-up at 28y (73% of possible to invite).Results: Of the 170 participants at 28y, 105 (61.8%) had persistent asthma (women: 49/76, 64.5%; men: 56/94, 59.6%, p = 0.513). Factors collected at recruitment: allergic sensitization (OR7.8, 95%CI 3.0–20.2), severe respiratory infection (OR2.6, 95%CI 1.1–6.3) and higher asthma severity score (OR1.6, 95%CI 1.1–2.4) were associated with asthma at 28y after adjustment for sex, family history of asthma, breastfeeding <3 months and eczema. Replacing allergic sensitization with rhinoconjunctivitis in the model yielded OR3.4 (95%CI 1.5–8.0). Bronchial hyperreactivity at age 17y associated with asthma at 28y (OR9.0, 95%CI 1.7–47.0).Conclusions: Among children with asthma onset by 8y, 62% still had asthma at age 28 years. Persistent asthma was associated with allergic sensitization, rhinoconjunctivitis, severe respiratory infection, a more severe asthma and bronchial hyperreactivity.
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12.
  • Amid Hägg, Shadi, et al. (författare)
  • Smokers with insomnia symptoms are less likely to stop smoking
  • 2020
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 170
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: Smoking is associated with sleep disturbances. The aim of this study was to analyze whether sleep disturbances are predictors of smoking cessation and whether continued smoking is associated with the development of sleep disturbances. Methods: A questionnaire was sent to randomly selected men and women in Northern Europe in 1999-2001 (RHINE II) and was followed up by a questionnaire in 2010-2012 (RHINE III). The study population consisted of 2568 participants who were smokers at baseline and provided data on smoking at follow-up. Insomnia symptoms were defined as having difficulty initiating and/or maintaining sleep and/or early morning awakening >= 3 nights/week. Multiple logistic regression analyses were performed to calculate odds ratios (OR). Results: Subjects with difficulty initiating sleep (adjusted odds ratio; 95% confidence interval: 0.6; 0.4-0.8), difficulty maintaining sleep (0.7; 0.5-0.9), early morning awakening (0.6; 0.4-0.8), any insomnia symptom (0.6; 0.5-0.8) or excessive daytime sleepiness (0.7; 0.5-0.8) were less likely to achieve long-term smoking cessation after adjustment for age, BMI, pack-years, hypertension, diabetes, chronic bronchitis, rhinitis, asthma, gender and BMI difference. There was no significant association between snoring and smoking cessation. In subjects without sleep disturbance at baseline, continued smoking increased the risk of developing difficulty initiating sleep during the follow-up period compared with those that had quit smoking (adj. OR 1.7, 95% CI 1.2-2.3). Conclusions: Insomnia symptoms and excessive daytime sleepiness negatively predict smoking cessation. Smoking is a risk factor for the development of difficulty initiating sleep. Treatment for sleep disturbances should be included in smoking-cessation programs.
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13.
  • Amin, Kawa, et al. (författare)
  • Inflammation and structural changes in the airways of patients with primary Sjogren's syndrome
  • 2001
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 95:11, s. 904-910
  • Tidskriftsartikel (refereegranskat)abstract
    • The present study aimed to compare the cellular pattern and structural changes in the airways of patients with primary Sjögren's syndrome (pSS) with healthy controls. Bronchial biopsy specimens were obtained from seven subjects with pSS and seven healthy controls. All the patients with pSS had increased bronchial responsiveness to methacholine. In the biopsies inflammatory cells, cytokine-producing cells, tenascin and laminin were visual zed by immunostaining. Patients with pSS had a higher number of neutrophils and mast cells than healthy controls, while the number of eosinophils was similar in the two groups. The number of IL-8-positive cells was higher in pSS butthe numbers of IL-4-and IL-5-positive cells were not significantly different between pSS and healthy controls. The numbers of T cells in patients with pSS were higher than in healthy controls, while the numbers of CD25-positive cells were similar to the healthy controls. The degree of epithelial integrity in patients with pSS was significantly lower than in the control group and the tenascin and laminin layers were significantly thicker in the pSS group. There was a correlation between the number of mast cells and the thickness of the tenascin and laminin layers in pSS. In conclusion, we found that the cellular pattern in the bronchial mucosa of patients with pSS displayed large numbers of neutrophils, mast cells and T-lymphocytes. These changes in inflammatory cell numbers seemed to relate to the observed increased epithelial damage and structural changes of the subepithelium. The structural findings, but not the pattern of inflammatory cells, are shared with atopic asthma and may relate to the increased bronchial hyper-responsiveness seen in both diseases.
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14.
  • Amin, Kawa (författare)
  • The role of mast cells in allergic inflammation
  • 2012
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 106:1, s. 9-14
  • Forskningsöversikt (refereegranskat)abstract
    • The histochemical characteristics of human basophils and tissue mast cells were described over a century ago by Paul Ehrlich. When mast cells are activated by an allergen that binds to serum IgE attached to their Fc epsilon RI receptors, they release cytokines, eicosanoids and their secretory granules. Mast cells are now thought to exert critical proinflammatory functions, as well as potential immunoregulatory roles, in various immune disorders through the release of mediators such as histamine, leukotrienes, cytokines chemokines, and neutral proteases (chymase and tryptase). The aim of this review is to describe the role of mast cells in allergic inflammation. Mast cells interact directly with bacteria and appear to play a vital role in host defense against pathogens. Drugs, such as glucocorticoids, cyclosporine and cromolyn have been shown to have inhibitory effects on mast cell degranulation and mediator release. This review shows that mast cells play an active role in such diverse diseases as asthma, rhinitis, middle ear infection, and pulmonary fibrosis. In conclusion, mast cells may not only contribute to the chronic airway inflammatory response, remodeling and symptomatology, but they may also have a central role in the initiation of the allergic immune response, that is providing signals inducing IgE synthesis by B-lymphocytes and inducing Th2 lymphocyte differentiation.
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15.
  • An, Qingfan, 1997-, et al. (författare)
  • A scoping review of co-creation practice in the development of non-pharmacological interventions for people with chronic obstructive pulmonary disease : a health CASCADE study
  • 2023
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 211
  • Forskningsöversikt (refereegranskat)abstract
    • Background: Incorporating co-creation processes may improve the quality of outcome interventions. However, there is a lack of synthesis of co-creation practices in the development of Non-Pharmacological Interventions (NPIs) for people with Chronic Obstructive Pulmonary Disease (COPD), that could inform future co-creation practice and research for rigorously improving the quality of care.Objective: This scoping review aimed to examine the co-creation practice used when developing NPIs for people with COPD.Methods: This review followed Arksey and O'Malley scoping review framework and was reported according to the PRISMA-ScR framework. The search included PubMed, Scopus, CINAHL, and Web of Science Core Collection. Studies reporting on the process and/or analysis of applying co-creation practice in developing NPIs for people with COPD were included.Results: 13 articles complied with the inclusion criteria. Limited creative methods were reported in the studies. Facilitators described in the co-creation practices included administrative preparations, diversity of stakeholders, cultural considerations, employment of creative methods, creation of an appreciative environment, and digital assistance. Challenges around the physical limitations of patients, the absence of key stakeholder opinions, a prolonged process, recruitment, and digital illiteracy of co-creators were listed. Most of the studies did not report including implementation considerations as a discussion point in their co-creation workshops.Conclusion: Evidence-based co-creation in COPD care is critical for guiding future practice and improving the quality of care delivered by NPIs. This review provides evidence for improving systematic and reproducible co-creation. Future research should focus on systematically planning, conducting, evaluating, and reporting co-creation practices in COPD care.
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16.
  • Andersen, Grethe Neumann, et al. (författare)
  • Bronchoalveolar matrix metalloproteinase 9 relates to restrictive lung function impairment in systemic sclerosis.
  • 2007
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 101:10, s. 2199-2206
  • Tidskriftsartikel (refereegranskat)abstract
    • Systemic sclerosis (SSc) is frequently associated with interstitial lung disease (ILD) often leading to lung fibrosis. In this study we investigated whether matrix metalloproteinase 9 (MMP-9) and its natural inhibitor; the tissue inhibitor of matrix metalloproteinase 1 (TIMP-1), would be associated with remodelling in ILD in SSc. Levels of total MMP-9, pro-MMP-9 and TIMP-1 were measured in bronchoalveolar lavage (BAL) fluid from nine SSc patients with ILD, seven SSc patients without ILD and 16 age- and sex-matched healthy controls. Total MMP-9 and pro-MMP-9 levels were significantly elevated in SSc patients with ILD, compared to levels in SSc patients without ILD and healthy controls. In SSc patients with ILD calculated active MMP-9 levels were significantly higher than in SSc patients without ILD and tended to be higher than in healthy controls. TIMP-1 levels were elevated in both patient groups compared to healthy controls. Total-, pro- and active MMP-9 levels as well as pro-MMP-TIMP-1 and active MMP-9/TIMP-1 ratios were inversely associated with total lung capacity. The present study suggests that MMP-9 plays a pathophysiological role in the remodelling in ILD and lung fibrosis associated with SSc, and may represent a new therapeutic target in this condition.
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17.
  • Andersén, Heidi, et al. (författare)
  • Is there still a social gradient in respiratory symptoms? A population-based nordic EpiLung-study
  • 2024
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 223
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Respiratory symptoms are a common public health issue that can partly be attributed to preventable risk factors, such as tobacco smoking and occupational exposure, which are more common in individuals with lower socioeconomic status.Objective: Our aim was to evaluate the social gradient in respiratory symptoms in Nordic countries.Methods: This study included participants aged 30–65 years from five cross-sectional population-based questionnaire surveys in 2016 in Finland and Sweden (N = 25,423) and in 2017–2019 in Norway (N = 27,107). Occupational skill levels 1 and 2 (occupations requiring compulsory education) were combined and compared to skill levels 3 and 4 (occupations requiring upper secondary and tertiary education). Meta-analysis was conducted to obtain pooled age- and sex adjusted odds ratios (aORs) of associations between occupational skill and the respiratory symptoms including recurrent wheeze, dyspnoea, and productive cough.Results: In the meta-analysis, recurrent wheeze, dyspnoea, and productive cough showed a social gradient. The participants with occupational skill 1 and 2 had higher risk for recurrent wheeze (aOR 1.78, 95% CI 1.34–2.22) and dyspnoea (aOR 1.59, 95% CI 1.29–1.90) compared to occupational skill 3 and 4 in Sweden and Finland. Similarly increased risk was observed for combined assessment of dyspnoea and wheeze (aOR 1.05, 95% CI 1.03–1.07) in Norway. In a meta-analysis including all three countries, the aOR for productive cough was 1.31 95% CI 1.07–1.56.Conclusions: Occupations with lower, compared to higher, skill levels were associated with an increased risk of recurrent wheeze, dyspnoea, and productive cough.
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18.
  • Andersson, F, et al. (författare)
  • Adding formoterol to budesonide in moderate asthma--health economic results from the FACET study
  • 2001
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 95:6, s. 505-512
  • Tidskriftsartikel (refereegranskat)abstract
    • The FACET (Formoterol and Corticosteroid Establishing Therapy) study established that there is a clear clinical benefit in adding formoterol to budesonide therapy in patients who have persistent symptoms of asthma despite treatment with low to moderate doses of an inhaled corticosteroid. We combined the clinical results from the FACET study with an expert survey on average resource use in connection with mild and severe asthma exacerbations in the U.K., Sweden and Spain. The primary objective of this study was to assess the health economics of adding the inhaled long-acting beta2-agonist formoterol to the inhaled corticosteroid budesonide in the treatment of asthma. The extra costs of adding the inhaled beta2-agonist formoterol to the corticosteroid budesonide in asthmatic patients in Sweden were offset by savings from reduced use of resources for exacerbations. For Spain the picture was mixed. Adding formoterol to low dose budesonide generated savings, whereas for moderate doses of budesonide about 75% of the extra formoterol costs could be recouped. In the U.K., other savings offset about half of the extra cost of formoterol. All cost-effectiveness ratios are within accepted cost-effectiveness ranges reported from previous studies. If productivity losses were included, there were net savings in all three countries, ranging from Euro 267-1183 per patient per year. In conclusion, adding the inhaled, long-acting beta2-agonist formoterol to low-moderate doses of the inhaled corticosteroid budesonide generated significant gains in all outcome measures with partial or complete offset of costs. Adding formoterol to budesonide can thus be considered to be cost-effective.
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19.
  • Andersson, F, et al. (författare)
  • The costs of exacerbations in chronic obstructive pulmonary disease (COPD)
  • 2002
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 96:9, s. 700-708
  • Tidskriftsartikel (refereegranskat)abstract
    • Exacerbations are the key drivers in the costs of chronic obstructive pulmonary disease (COPD). The objective was to examine the costs of COPD exacerbations in relation to differing degrees of severity of exacerbations and of COPD. We identified 202 subjects with COPD, defined according to the BTS and ERS criteria. Exacerbations were divided into mild (self-managed), mild/moderate (telephone contact with a health-care centre and/or the use of anti biotics/systemic corticosteroids), moderate (health-care centre visits) and severe (emergency care visit or hospital admission). Exacerbations were identified by sending the subjects a letter inquiring whether they had any additional respiratory problems or influenza the previous winter. At least one exacerbation was reported by 61 subjects, who were then interviewed about resource use for these events. The average health-care costs per exacerbation were SEK 120(95% CI = 39-246), SEK 354 (252-475), SEK 2111 (1673-2612) and SEK 21852 (14436-29825) for mild, mild/moderate, moderate and severe exacerbations, respectively. Subjects with impaired lung function experienced more severe exacerbations, which was also reflected in the cost of exacerbations per severity of the disease during the 41 month study period (ranging from SEK 224 for mild to SEK 13708 for severe cases, median SEK 940). Exacerbations account for 35-45% of the total per capita health-care costs for COPD. In conclusion, costs varied considerably with the severity of the exacerbation as well as with the severity of COPD. The prevention of moderate-to-severe exacerbations could be very cost-effective and improve the quality of life.
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20.
  • Andersson, I, et al. (författare)
  • Long-term oxygen therapy and quality of life in elderly patients hospitalised due to severe exacerbation of COPD. A 1 year follow-up study
  • 2002
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 96:11, s. 944-949
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study was (1) to evaluate the effects of long-term oxygen treatment (LTOT) in elderly patients with severe exacerbations of chronic obstructive pulmonary disease (COPD) and hypoxaemia, (2) to study the health-related quality of life (QOL) during hospital stay and at follow-up, (3) to study the safety of an oxygen withdrawal test performed a few days after admission to hospital and the possibility to predict the future need for LTOT from that test. Patients > 70 years with COPD-exacerbations with hypoxaemia were included after 5-7 days treatment in hospital. Inclusion was based on results of a standardised oxygen withdrawal test. After 1, 3, 6 and 12 months a new oxygen withdrawal test was performed. Health-related QOL was evaluated with SF-36 and the St George's Respiratory Questionnaire at inclusion and after 3,6 and 12 months. Forty-seven patients were screened for participation and 29 patients, mean age 79 years, participated in the study Only one patient could not tolerate the oxygen withdrawal test. Eighteen patients survived to the follow-up after 12 months, 8/19 women and 2/10 men died. After 1 month LTOT was needed (PaO2 without oxygen was less than or equal to 7.5 kPa) in only 6/20 patients. The effect of LTOT could therefore not be studied. Most components of SF-36 were very low at inclusion, but tended to increase after 3 months and were among the surviving patients after 12 months similar to that of healthy people of the same age for psychic well being and functioning. Especially, the symptom score of the SGRQ improved after 3 months. In conclusion, the future need for LTOT cannot be judged after a few days treatment in hospital due to exacerbations with hypoxaemia in elderly patients with COPD. A standardised oxygen withdrawal test can be safely done. Health-related QOL is low in patients during the stay in hospital, but improves after returning home.
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21.
  • Andersson, Mikael, et al. (författare)
  • Physical activity and fatigue in chronic obstructive pulmonary disease - A population based study
  • 2015
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 109:8, s. 1048-1057
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: In subjects with chronic obstructive pulmonary disease (COPD), symptoms of fatigue, concomitant heart disease and low physical activity levels are more frequently described than in subjects without COPD. However, there are no population-based studies addressing the relationship between physical activity, fatigue and heart disease in COPD. The aim was to compare physical activity levels among subjects with and without COPD in a population based study, and to evaluate if concomitant heart disease and fatigue was associated to physical activity. Methods: In this, 470 subjects with COPD and 659 subjects without COPD (non-COPD) participated in examinations including structured interview and spirometry. A ratio of the forced expiratory volume in one second (FEV1)/best of forced vital capacity (FVC) and vital capacity (VC) <0.7 was used to define COPD. Physical activity was assessed with the International Physical Activity Questionnaire (IPAQ), and fatigue with the Functional Assessment of Chronic Illness Therapy - Fatigue scale (FACIT-F). Results: The prevalence of low physical activity was higher among subjects with FEV1 <80% predicted compared to non-COPD subjects (22.4% vs. 14.6%, p = 0.041). The factors most strongly associated with low physical activity in subjects with COPD were older age, OR 1.52, (95% CI 1.12-2.06), a history of heart disease, OR 2.11 (1.10-4.08), and clinically significant fatigue, OR 2.33 (1.31-4.13); while obesity was the only significant factor among non-COPD subjects, OR 2.26 (1.17-4.35). Conclusion: Physical activity levels are reduced when lung function is decreased below 80% of predicted, and the factors associated with low physical activity are different among subject with and without COPD. We propose that the presence of fatigue and heart disease are useful to evaluate when identifying subjects for pulmonary rehabilitation.
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22.
  • Appelberg, Jonas, 1964-, et al. (författare)
  • Lung volume and its correlation to nocturnal apnoea and desaturation
  • 2000
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 94:3, s. 233-239
  • Tidskriftsartikel (refereegranskat)abstract
    • The cross-sectional area of the upper airway is known to be lung volume dependent. If, and to what extent, lung volume variables correlate to nocturnal obstructive apnoeas and oxygen desaturations independently of other factors known to affect lung volumes and sleep disordered breathing is still unclear. A total of 92 subjects were examined by ambulatory recording of nocturnal obstructive apnoeas and desaturations. Sixty-nine of the subjects had a history of snoring and 23 were healthy subjects without complaints of snoring and daytime sleepiness. All subjects performed static and dynamic spirometry for measurements of lung volumes. To evaluate the correlation between lung volume variables and apnoea index (AI) and oxygen desaturation index (ODI), simple and multiple regression analysis was performed. Expiratory reserve volume (ERV) was found to be lower in subjects with snoring and apnoeas (ERV = 1.0 l) than in non-snoring subjects (ERV = 1.7 l), (P<0.001). Forced expiratory volume in 1 sec (FEV1)/vital capacity (VC) was slightly, but significantly (P = 0.031), lower in subjects with snoring and nocturnal apnoeas and desaturations. In the multiple regression analysis ERV was found to be independently correlated to both AI (R2=0.13; P=0.001) and ODI (R2 = 0.11; P = 0.002). Multiple regression analysis also revealed that ERV, body mass index (BMI) and habitual smoking together accounted for 43% of the variation in AI and 48% of the variation in ODI. We find a significant independent association between ERV and nocturnal obstructive apnoea and oxygen desaturation frequency. Our results indicate that ERV is correlated to these events to a similar extent, as is obesity. 
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23.
  •  
24.
  • Arnardóttir, Ragnheiður Harpa, et al. (författare)
  • Interval training compared with continuous training in patients with COPD
  • 2007
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 101:6, s. 1196-1204
  • Tidskriftsartikel (refereegranskat)abstract
    • The aim of this study was to compare the effects of interval training (3-min intervals) with continuous training on peak exercise capacity (W peak), physiological response, functional capacity, dyspnoea, mental health and health-related quality of life (HRQoL) in patients with moderate or severe COPD. Sixty patients exercised twice weekly for 16 weeks after randomisation to interval- or continuous training. Target intensity was 80% of baseline W peak in the interval group (I-group) and 65% in the continuous group (C-group). Patients were tested by spirometry, ergometer cycle test, cardiopulmonary test and a 12 min walk test. Dyspnoea was measured by the dyspnoea scale from Chronic Obstructive Disease Questionnaire (CRDQ), mental health by Hospital Anxiety and Depression scale (HAD) and HRQoL by the Medical Outcomes Survey Short Form 36 (SF-36). After training, W peak, peak oxygen uptake (VO2 peak) and exhaled carbon dioxide (VCO2 peak) increased significantly in both groups, no significant differences between the groups. Minute ventilation (VE peak) increased only in the C-group. At identical work rates (isotime) VO2, VCO2 and VE were significantly more decreased in the I-group than in the C-group (p<0.05). Functional capacity, dyspnoea, mental health, and HRQoL improved significantly in both groups, no difference between the groups. Interval training and continuous training were equally potent in improving peak exercise capacity, functional exercise capacity, dyspnoea, mental health and HRQoL in patients with moderate or severe COPD. At isotime, the physiological response to training differed between the groups, in favour of the interval training.
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25.
  • Arne, Mats, 1954-, et al. (författare)
  • How often is diagnosis of COPD confirmed with spirometry?
  • 2010
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 104:4, s. 550-556
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Chronic obstructive pulmonary disease (COPD) is an important cause of morbidity and mortality worldwide. Diagnosis is customarily confirmed with spirometry, but there are few studies on documented spirometry use in everyday clinical practice. Methods: In a cross-sectional survey and study of the medical records of primary and secondary care COPD patients aged 18-75 in a Swedish region, patients with COPD were randomly selected from the registers of 56 primary care centres and 14 hospital outpatient clinics. Spirometry data at diagnosis ±6 months were analyzed. Results: From 1,114 patients with COPD, 533 with a new diagnosis of COPD during the four-year study period were identified. In 59% (n=316), spirometry data in connection with diagnosis were found in the medical records. Spirometry data with post-bronchodilator forced expiratory volume in one second (FEV1)/ vital capacity (VC) ratios were available in 45% (n=241). FEV1/VC ratio <0.70 were found in 160 patients, which corresponds to 30% of the patients with a new diagnosis. Lower age, female gender, current smoking, higher body mass index (BMI) and shorter forced exhalation time were related to COPD diagnosis despite an FEV1/VC ratio of ≥0.70. The most common problem in the quality assessment was an insufficient exhalation time. Conclusions: Only a third of Swedish patients with COPD had their diagnosis confirmed with spirometry. Our data indicate that female gender, current smoking, higher BMI and short exhalation time increase the risk of being diagnosed with COPD without fulfilling the spirometric criteria for the disease.
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26.
  • Arvidsson, P, et al. (författare)
  • Exudation of plasma and production of thromboxane in human bronchi after local bradykinin challenge
  • 2001
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 95:5, s. 313-318
  • Tidskriftsartikel (refereegranskat)abstract
    • Plasma exudation has been suggested to be an important component of the inflammatory response in asthma. Bradykinin elicits many of the features of asthma, including bronchoconstriction, cough, plasma exudation and mucus secretion. In an attempt to quantify local plasma exudation, we have employed a novel low-trauma technique with the aim of challenging and lavaging a central part of the bronchial tree, by selecting a medium sized bronchus. A fibreoptic bronchoscopy was performed in non-smoking healthy volunteers. The instrument was placed proximally in the right upper lobe bronchus. A plastic catheter, equipped with an inflatable latex balloon, was inflated with air (2-4 cmH2O). A solution (100 microl of either two different concentrations of bradykinin: 0.09 and 0.9 mg ml(-1) or normal saline) was instilled through the catheter and distal to the balloon. Eight minutes later a lavage procedure with 10 ml of saline was performed through the catheter. The procedure was then repeated twice, with the other solutions, but from the lingular and middle lobe bronchi. All solutions were given in a blinded fashion, and two different studies were performed. Lavage concentrations of albumin and IgG were quantified as measurements of plasma exudation. In our first study we found that bradykinin challenge significantly increased concentrations of albumin and IgG. In study two, there was no numeric increase in plasma proteins after local bradykinin challenge, but the concentration of thromboxane was significantly increased in lavages from bradykinin-challenged bronchi. Thus, local bronchial administration of bradykinin has the capacity to induce exudation of large plasma macromolecules into the bronchial lumen, as well as local thromboxane production.
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27.
  • Axelsson, Malin, 1964-, et al. (författare)
  • Personality, adherence, asthma control and health-related quality of life in young adult asthmatics
  • 2009
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 103:7, s. 1033-1040
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundStriving for improved adherence and asthma control is of vital concern in today's asthma management. Several influential factors have been identified, but the importance of personality traits has been insufficiently explored. The aim was first to determine whether personality traits in young adult asthmatics are related to asthma control and health-related quality of life (HRQL), and second to examine the influences of personality traits on adherence to regular asthma medication treatment.MethodsYoung adult asthmatics, 22 years of age (n = 268) completed questionnaires. Statistical analyses were performed.ResultsThe personality traits Negative Affectivity and Impulsivity correlated negatively with asthma control, whereas in women Hedonic Capacity correlated positively with asthma control. Negative Affectivity, Impulsivity, Hedonic Capacity, Alexithymia and asthma control predicted the mental dimension of HRQL. Asthma control and physical activity predicted the physical dimension of HRQL. Among respondents with regular asthma medication (n = 109), Impulsivity correlated negatively with adherence. In men, Antagonism and Alexithymia were associated with low adherence. Additionally, Alexithymia, Hedonic Capacity and Negative Affectivity showed non-linear relationships with adherence, meaning that initially increased scores on these personality traits scales were associated with increased adherence but higher scores did not increase adherence. Respondents who were prescribed a single inhaler combining ICS and LABA reported higher adherence than those with monotherapies.ConclusionThese data suggest that personality can influence how asthma patients adhere to asthma medication treatment, and report their control and HRQL. Tools determining personality traits may be useful in the future in individualizing management of asthma patients.
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28.
  • Axelsson, Malin, 1964-, et al. (författare)
  • Underdiagnosis and misclassification of COPD in Sweden - A Nordic Epilung study
  • 2023
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 217
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: The prevalence of COPD tends to level off in populations with decreasing prevalence of smoking but the extent of underdiagnosis in such populations needs further investigation.Aim: To investigate underdiagnosis and misclassification of COPD with a focus on socio-economy, lifestyle determinants and healthcare utilization.Method: The 1839 participants were selected from two ongoing large-scale epidemiological research programs: The Obstructive Lung Disease in Northern Sweden Studies and the West Sweden Asthma Study. COPDGOLD was defined according to the fixed post-bronchodilator spirometric criteria FEV1/FVC<0.70 in combination with respiratory symptoms. Results: Among the 128 participants who fulfilled the criteria for COPDGOLD, the underdiagnosis was 83.6% (n = 107) of which 57.9% were men. The undiagnosed participants were younger, had higher FEV1% of predicted and less frequently a family history of bronchitis. One in four of the undiagnosed had utilized healthcare and had more frequently utilized healthcare due to a burden of respiratory symptoms than the general population without COPD. Underdiagnosis was not related to educational level. Misclassification of COPD was characterized by being a woman with low education, ever smoker, having respiratory symptoms and having a previous asthma diagnosis.Conclusion: In the high income country Sweden, the underdiagnosis of COPD was highly prevalent. Reduced underdiagnosis can contribute to risk factor modification, medical treatment and self-management strategies in early stages of the disease, which may prevent disease progression and improve the quality of life among those affected. Therefore, there is a need to increase the use of spirometry in primary care to improve the diagnostic accuracy.
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29.
  • Backman, Helena, et al. (författare)
  • Chronic airway obstruction in a population-based adult asthma cohort : Prevalence, incidence and prognostic factors
  • 2018
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 138, s. 115-122
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundAsthma and COPD may overlap (ACO) but information about incidence and risk factors are lacking. This study aimed to estimate prevalence, incidence and risk factors of chronic airway obstruction (CAO) in a population-based adult asthma cohort.MethodsDuring 1986–2001 a large population-based asthma cohort was identified (n = 2055, 19-72y). Subsamples have participated in clinical follow-ups during the subsequent years. The entire cohort was invited to a clinical follow-up including interview, spirometry, and blood sampling in 2012–2014 when n = 983 subjects performed adequate spirometry. CAO was defined as post-bronchodilator FEV1/FVC<0.7.ResultsAt study entry, asthmatics with prevalent CAO (11.4%) reported more respiratory symptoms, asthma medication use, and ischemic heart disease than asthmatics without CAO (asthma only). Subjects who developed CAO during follow-up (17.6%; incidence rate of 16/1000/year) had a more rapid FEV1 decline and higher levels of neutrophils than asthma only. Smoking, older age and male sex were independently associated with increased risk for both prevalent and incident CAO, while obesity had a protective effect.ConclusionsIn this prospective adult asthma cohort, the majority did not develop CAO. Smoking, older age and male sex were risk factors for prevalent and incident CAO, similar to risk factors described for COPD in the general population.
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30.
  • Backman, Helena, et al. (författare)
  • COPD in women – new results presented
  • 2021
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 176
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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31.
  • Backman, Helena, et al. (författare)
  • Decreased prevalence of moderate to severe COPD over 15 years in northern Sweden
  • 2016
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 114, s. 103-110
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The burden of COPD in terms of mortality, morbidity, costs and prevalence has increased worldwide. Recent results on prevalence in Western Europe are conflicting. In Sweden smoking prevalence has steadily decreased over the past 30 years. Aim: The aim was to study changes in prevalence and risk factor patterns of COPD in the same area and within the same age-span 15 years apart. Material and methods: Two population-based cross-sectional samples in ages 23-72 years participating at examinations in 1994 and 2009, respectively, were compared in terms of COPD prevalence, severity and risk factor patterns. Two different definitions of COPD were used; FEV1/FVC < LLN and FEV1/FVC < 0.7. The severity of COPD was assessed by FEV1, both as % of predicted and in relation to the LLN. Results: The prevalence of COPD decreased significantly from 9.5% to 6.3% (p = 0.030) according to the FEV1/FVC < LLN criterion, while the decrease based on the FEV1/FVC < 0.7 criterion from 10.5% to 8.5% was non-significant. The prevalence of moderate to severe COPD decreased substantially and significantly, and the risk factor pattern was altered in 2009 when, beside age and smoking, also socioeconomic status based on occupation was significantly associated with COPD. Conclusions: Changes in both prevalence and risk factor patterns of COPD were observed between surveys. Following a continuing decrease in smoking habits over several decades, a decrease in the prevalence of moderate to severe COPD was observed from 1994 to 2009 in northern Sweden.
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32.
  • Backman, Helena, et al. (författare)
  • Restrictive spirometric pattern in the general adult population: Methods of defining the condition and consequences on prevalence
  • 2016
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 120, s. 116-123
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Attempts have been made to use dynamic spirometry to define restrictive lung function, but the definition of a restrictive spirometric pattern (RSP) varies between studies such as BOLD and NHANES. The aim of this study was to estimate the prevalence and risk factors of RSP among adults in northern Sweden based on different definitions. Methods In 2008–2009 a general population sample aged 21–86y within the obstructive lung disease in northern Sweden (OLIN) studies was examined by structured interview and spirometry, and 726 subjects participated (71% of invited). The prevalence of RSP was calculated according to three different definitions based on pre-as well as post-bronchodilator spirometry: 1) FVC<80% & FEV1/FVC>0.7 2) FVC<80% & FEV1/FVC>LLN 3) FVCLLN Results The three definitions yielded RSP prevalence estimates of 10.5%, 11.2% and 9.4% respectively, when based on pre-bronchodilator values. The prevalence was lower when based on post-bronchodilator values, i.e. 7.3%, 7.9% and 6.6%. According to definition 1 and 2, the RSP prevalence increased by age, but not according to definition 3. The overlap between the definitions was substantial. When corrected for confounding factors, manual work in industry and diabetes with obesity were independently associated with an increased risk for RSP regardless of definition. Conclusions The prevalence of RSP was 7–11%. The prevalence estimates differed more depending on the choice of pre- compared to post-bronchodilator values than on the choice of RSP definition. RSP was, regardless of definition, independently associated with manual work in industry and diabetes with obesity. © 2016 The Authors
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33.
  • Backman, Helena, et al. (författare)
  • The interplay between obesity and blood neutrophils in adult-onset asthma
  • 2024
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 222
  • Tidskriftsartikel (refereegranskat)abstract
    • Highlights:Severe obesity strongly associates to blood neutrophils in adult-onset asthma.B-neutrophils may partly mediate associations between obesity and asthma control.Clinical evaluation of adult-onset asthma should include assessing B-neutrophils.
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34.
  • Baiardini, Ilaria, et al. (författare)
  • Patient knowledge, perceptions, expectations and satisfaction on allergen-specific immunotherapy: A survey
  • 2013
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 107:3, s. 361-367
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Assessing patient's perspective provides useful information enabling a customized approach which has been advocated by current guidelines. In this multicentre cross-sectional study we evaluated personal viewpoints on allergen-specific immunotherapy (SIT) in patients treated with subcutaneous (SCIT) or sublingual (SLIT) immunotherapy. Methods: A survey of 28 questions assessing patient's knowledge, perceptions, expectations and satisfaction was developed by an expert panel and was applied by physicians from allergology centres in patients with respiratory allergy treated with SIT. Treating physicians independently reported their satisfaction level regarding SIT for each patient. Results: Fully completed surveys from 434 patients (55.3% mate; 66.7% poly-sensitized, 74% SLIT) were analysed. Mean duration of SIT was 2.5 years with different allergens. Most patients acquired their SIT knowledge from their physician (95%) and consequently, their physicians' opinion in their choice to start with SIT was important. Most patients perceived SIT to be safe and easy to integrate into their daily routine. The main motivations for SIT were its supposed potential to alter the course of the disease (45.7%), less need of (28.2%), or dissatisfaction with current pharmacotherapy (19.3%). Both patients' and physicians' satisfaction was high (VAS-scores 74/100 and 78/100, respectively) and showed a significant correlation (SCIT: r = 0.612; SLIT: r = 0.608). No major difference was found in patients' answers based on the level of education. Conclusion: In this real life study evaluating different aspects of patient's perspective on SIT, the majority of patients had an adequate level of knowledge, perceptions, expectations and satisfaction about SIT, which corresponded well with the physician's perceptions and satisfaction. Our data warrant the use of patient's perspectives on chronic SIT treatment. (C) 2012 Elsevier Ltd. All rights reserved.
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35.
  • Bashir, Muwada Bashir Awad, et al. (författare)
  • Interaction of smoking and social status on the risk of respiratory outcomes in a Swedish adult population : A Nordic Epilung study
  • 2023
  • Ingår i: Respiratory Medicine. - : Elsevier. - 0954-6111 .- 1532-3064. ; 211
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Evidence abounds on the independent roles of social class and smoking in relation to obstructive airway diseases, but data are sparse on the impact of their interaction. We evaluated whether and to what extent social class and smoking interact in relation to risk of respiratory diseases in adults.Methods: Data from the population-based studies, West Sweden Asthma Study (WSAS, n = 23,753) and Obstructive Lung Disease in Northern Sweden studies (OLIN, n = 6519), were used, constituting randomly selected adults aged 20–75 years. Bayesian network analysis was used to estimate the probability for the interaction between smoking and socioeconomic status in relation to respiratory outcomes.Results: Occupational and educational SES modified the association between smoking and the probability of allergic and non-allergic asthma. Former smokers who were at intermediate non manual employees and manual workers in service had higher probability of allergic asthma compared to professionals and executives. Furthermore, former smokers with primary education had higher probability of non-allergic asthma than those with secondary and tertiary education. Similarly, former smokers among professionals and executives had higher probability of non-allergic asthma than manual and home workers and primary educated. Likewise, allergic asthma due to former smoking was higher among highly educated compared to low educated.Conclusions: Beyond their independent roles, socioeconomic status and smoking interact in defining the risk of respiratory diseases. Clearer understanding of this interaction can help to identify population subgroups at most need of public health interventions.
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36.
  • Bateman, Eric D, et al. (författare)
  • Dose effect of once-daily fluticasone furoate in persistent asthma: a randomized trial.
  • 2012
  • Ingår i: Respiratory medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 106:5, s. 642-50
  • Tidskriftsartikel (refereegranskat)abstract
    • This randomized, double-blind, multicenter study was designed to evaluate the efficacy of inhaled once-daily fluticasone furoate (FF) administered in the evening in patients with persistent asthma not controlled by short-acting beta(2) agonists, and to determine the dose(s) suitable for further development.
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37.
  • Berggren, F., et al. (författare)
  • A cost-effectiveness study comparing the as-needed use of formoterol (Oxis®) and terbutaline (Bricanyl®) in patients with moderate to severe asthma
  • 2001
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 95:9, s. 753-758
  • Tidskriftsartikel (refereegranskat)abstract
    • This study evaluated the economic and health-related consequences of the as-needed use of a long-acting ß2-agonist with fast onset (formoterol,Oxis® Turbuhaler® 4.5 µg) versus a short-acting ß2-agonist (terbutaline, Bricanyl® Turbuhaler® 0.5 mg) in patients with moderate to severe asthma. A multi-national (Sweden, Norway, The Netherlands and Greece), multi-centre (35 centres), randomized, double-blind clinical trial was conducted using 362 patients on inhaled steroids during a 12-week period. The effectiveness results were pooled and the total costs included estimates for ß2-agonists, inhaled steroids, oral steroids, physician visits and sick-leave. The 182 patients in the formoterol group had 14404 days of exposure and 29 severe exacerbations, and the 180 patients in the terbutaline group had 13655 days of exposure and 48 severe exacerbations. The terbutaline group had 62% more severe exacerbations than the formoterol group (P=0.039), based on exposure time. Per patient, the calculated total costs were SEK 3386 for the formoterol group and SEK 3709 for the terbutaline group over the 12-week period. The conclusion is that the use of Oxis® Turbuhaler® instead of Bricanyl® Turbuhaler® for as-needed treatment is a more effective treatment generating cost savings from a societal perspective. © 2001 Harcourt Publishers Ltd.
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38.
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39.
  • Bergström, Sten-Erik, et al. (författare)
  • Asthma mortality among Swedish children and young adults, a 10-year study
  • 2008
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 102:9, s. 1335-1341
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Previous reports indicate that morbidity and mortality from asthma have increased during the past decades. Here, the mortality rate associated with asthma and possible risk factors in children and young adults in Sweden during the period 1994-2003 were evaluated. METHODS: The medical profession was asked to report suspected cases of death from asthma in individuals 1-34 years of age. All death certificates containing relevant ICD codes were reviewed. Medical records and autopsy reports were assessed and telephone interviews with next-of-kin performed. RESULTS: During the 10-year period 37 deaths due to asthma were identified. The median age at the time of death was 27 years and 6 of the deceased were younger than 15. The overall incidence of death from asthma decreased from 1.54 deaths per million in 1994 to 0.53 per million in 2003. Common risk factors were under-treatment (23/37), poor adherence to prescribed treatment (17/37) and adverse psychosocial situation (19/37). An alarming finding was that 11 of the 37 deaths were probably caused by food allergy and for 8 subjects death was associated with exposure to pet dander. The death certificates were found to contain inaccuracies with 30% of those for whom asthma was reported as the underlying cause having died from other causes. CONCLUSION: Asthma mortality in children and young adults in Sweden decreased between 1994 and 2003. Food allergy and inadequate treatment were the major risk factors for such a death. Recognition and special care of patients with asthma who have shown signs of non-compliance, denial or severe food allergy must be encouraged.
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40.
  • Bernspång, Elisabeth, et al. (författare)
  • CT lung densitometry in young adults with alpha-1-antitrypsin deficiency
  • 2011
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 105:1, s. 74-79
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Severe (PiZZ) and moderate (PiSZ) alpha-1-antitrypsin (AAT) deficiency predispose to lung emphysema, especially in smokers. We hypothesized that multi-slice computed tomography (CT) might be superior to pulmonary function tests (PFT) to detect lung emphysema in AAT-deficient individuals at the age of 32 years. Methods: A subgroup of PiZZ and PiSZ individuals identified during the Swedish newborn screening programme in 1972-74 underwent multi-slice CT and PFT at the age of 32 years. From the CT scans the percentile density at 15% (PD15) and the relative area below -910 Hounsfield Units (RA(-910) HU) were calculated. The results of PFT and CT were compared between the AAT-deficient individuals and an age-matched control group. Results: Twenty-five PiZZ, 11 PiSZ and 17 PiMM individuals participated in the study. All Pi subgroups had normal lung function. The mean PD15 was 81 (SD 22) g/L in the PiZZ individuals, 96 (SD 35) g/L in the PiSZ individuals and 79 (SD 17) g/L in the PiMM individuals (ns), and the RA-910 were 30 (SD 18)%, 24 (SD 20)%, and 32 (SD 18)%, respectively (ns). For the never-smoker subgroups, in the PiZZ (n = 23), PiSZ (n = 8) and PiMM (n = 12), the mean PD15 were 95 (SD 35) g/L, 81 (SD 22) g/L, and 75 (SD 12) g/L, respectively (ns). PD15 was significantly correlated to CT derived lung size (r = -0.72; p < 0.001). Conclusions: CT densitometry revealed no signs of emphysema and no differences between the AAT-deficient individuals identified by neonatal screening and age-matched control subjects.
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41.
  • Bernspång, Elisabeth, et al. (författare)
  • Lung function in 30-year-old alpha-1-antitrypsin-deficient individuals.
  • 2009
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 103, s. 861-865
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Alpha-1-antitrypsin (AAT) deficiency increases the risk of emphysema, especially in smokers. In 1972-1974, all 200,000 Swedish new-born infants were screened for AAT deficiency and individuals with severe (PiZZ) and moderate (PiSZ) deficiency have been followed-up regularly. The aim of the present study was to examine their lung function at the age of 30years, comparing them to a group of age-matched control subjects (PiMM) recruited from the general population, and to compare current smokers with never-smokers. METHOD: Static and dynamic spirometry, including TLC, FRC, RV, VC, FEV(1,)K(CO) and D(L,CO), was performed for all participants. All values were expressed as percentages of the expected values. FEV(1)/VC was expressed both as percentage of the expected value and in absolute numbers. RESULTS: Four of 60 PiZZ, none of 19 PiSZ and 9 of 33 PiMM participating individuals were current smokers. All Pi groups had a normal mean FEV(1). The mean (SD) FEV(1)/VC ratio was 75% (7.4) in the PiZZ smokers and 84% (5.5) in the PiZZ never-smokers (p<0.01). The mean (SD) K(CO) was 81 (13) in the PiZZ smokers and 99 (14) in the PiZZ never-smokers (p<0.05). CONCLUSION: AAT-deficient individuals identified by neonatal screening have normal lung function at the age of 30. The PiZZ smokers had changes in lung function that may be signs of early emphysema.
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42.
  • Bernspång, Elisabeth, et al. (författare)
  • Respiratory symptoms and lung function in 30-year-old individuals with alpha-1-antitrypsin deficiency.
  • 2007
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 101, s. 1971-1976
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Individuals with severe alpha-1-antitrypsin (AAT) deficiency have a well-known risk of developing emphysema but it is not known at which age the first symptoms occur and lung function declines. The aim of this study was to examine the prevalence of smoking, respiratory symptoms and lung function at the age of 30 in AAT-deficient individuals (PiZ and PiSZ) identified by neonatal screening. Material and methods: One hundred and seven PiZ, 45 PiSZ and 197 control subjects (PiMM) filled in a questionnaire regarding smoking habits and symptoms. Ninety PiZ, 40 PiSZ and 84 control subjects underwent spirometry including FEV1 and FVC. Results: Twenty-one percent of PiZ, 23% of PiSZ and 34% of PiMM subjects had smoked at some time (p < 0.05). Sixty-five percent of PiZ, 55% of PiSZ and 35% of PiMM ever-smokers reported shortness of breath on exertion (p < 0.05 PiZ vs PiMM). The mean FEV1, was 101% predicted (95% CI 98-104) in PiZ, 101% predicted (95% CI 97-106) in PISZ, and 96% predicted (95% 93-98) in PiMM individuals (p < 0.05). There was no difference in mean FEV1 when comparing ever- and neversmokers in the different Pi groups separately. Conclusion: At the age of 30, the AAT-deficient individuals in this cohort report more symptoms than the control subjects. Smoking is less common in the cohort compared to controls. Their lung function is normal.
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43.
  • Bisgaard, H, et al. (författare)
  • Determinants of lung function and airway hyperresponsiveness in asthmatic children
  • 2007
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 101:7, s. 1477-1482
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundAsthma patients exhibit an increased rate of loss of lung function. Determinants to such decline are largely unknown and the modifying effect of steroid therapy is disputed. This cross-sectional study aimed to elucidate factors contributing to such decline and the possible modifying effect of steroid treatment.MethodsWe analyzed determinants of lung function and airway hyperresponsiveness (AHR) in a Scandinavian study of 2390 subjects from 550 families. Families were selected for the presence of two or more asthmatic children as part of a genetic study, Scandinavian Asthma Genetic Study (SAGA).ResultsThe primary analysis studied the association between the lung function and delay of inhaled corticosteroids (ICS) after asthma diagnosis among asthmatic children and young adults with a history of regular ICS treatment (N=919). FEV1 percent predicted (FEV1% pred) was 0.25% lower per year of delay from diagnosis until treatment (p=0.039). This association was significantly greater in allergy skin prick test negative children. There was no significant influence of gender, age at asthma onset, or smoking.In the secondary analysis of the whole population of 2390 asthmatics and non-asthmatics, FEV1% pred was inversely related to having asthmatic siblings (−7.9%; p<0.0001), asthma diagnosis (−2.7%; p=0.0007), smoking (−3.5%; p=0.0027), and positive allergy skin prick test (−0.47% per test; p=0.012), while positively related to being of female gender (1.8%; p=0.0029). Risk of AHR was higher by having asthmatic siblings (OR 2.7; p<0.0001), being of female gender (OR 2.0; p<0.0001), and having asthma (OR 2.0; p<0.0001).ConclusionsThese data suggest that lung function is lower in asthmatics with delayed introduction of ICS therapy, smoking, and positive allergy skin prick test. Lung function is lower and AHR higher in female asthmatics and subjects with asthmatic siblings or established asthma.
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44.
  • Bjerg, Anders, 1982, et al. (författare)
  • The association between asthma and rhinitis is stable over time despite diverging trends in prevalence
  • 2015
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 109:3, s. 312-319
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Despite the well-known association between asthma and rhinitis, in Swedish adults the prevalence of rhinitis rose from 22% to 31% between 1990 and 2008 while asthma prevalence was unchanged. We tested whether the association of rhinitis with asthma was stable over time using the same population-based databases. Methods: Two surveys of adults (20-44 years) living in three regions of Sweden, carried out in 1990 (n = 8982) and 2008 (n = 9156) were compared. Identical questions regarding respiratory symptoms, asthma and rhinitis were used. Asthmatic wheeze: Wheeze with breathlessness apart from colds. Current asthma: Asthma attacks and/or asthma medication use. Results: Subjects with rhinitis had level time trends in asthmatic wheeze, current asthma and most nocturnal respiratory symptoms between 1990 and 2008, adjusted for age, sex, area and smoking. Any wheeze however decreased slightly. In never-smokers asthma symptoms were similarly associated with rhinitis in 1990 and 2008: any wheeze OR 4.0 vs. 4.4 (p = 0.339); asthmatic wheeze OR 6.0 vs. 5.9 (p = 0.937); and current asthma OR 9.6 vs. 7.7 (p = 0.213). In the whole population there were decreases in the asthma symptoms most closely associated to smoking, which decreased by half 1990-2008. Conversely current asthma, which was strongly associated with rhinitis and not with smoking, increased (p < 0.001). Conclusions: The association of rhinitis with asthma was stable between 1990 and 2008. The pattern in the time trends of asthma outcomes strongly suggests that decreased smoking counterbalanced the driving effect of increased rhinitis on asthma prevalence. The findings illustrate the public health benefits of decreased smoking. (c) 2015 Elsevier Ltd. All rights reserved.
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45.
  • Bjermer, Leif, et al. (författare)
  • Current evidence and future research needs for FeNO measurement in respiratory diseases
  • 2014
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 108:6, s. 830-841
  • Forskningsöversikt (refereegranskat)abstract
    • Although not yet widely implemented, fraction of exhaled nitric oxide (FeNO) has emerged in recent years as a potentially useful biomarker for the assessment of airway inflammation both in undiagnosed patients with non-specific respiratory symptoms and in those with established airway disease. Research to date essentially suggests that FeNO measurement facilitates the identification of patients exhibiting T-helper cell type 2 (Th2)-mediated airway inflammation, and effectively those in whom anti-inflammatory therapy, particularly inhaled corticosteroids (ICS), is beneficial. In some studies, FeNO-guided management of patients with established airway disease is associated with lower exacerbation rates, improvements in adherence to anti-inflammatory therapy, and the ability to predict risk of future exacerbations or decline in lung function. Despite these data, concerns regarding the applicability and utility of FeNO in clinical practice still remain. This article reviews the current evidence, both supportive and critical of FeNO measurement, in the diagnosis and management of asthma and other inflammatory airway diseases. It additionally provides suggestions regarding the practical application of FeNO measurement: how it could be integrated into routine clinical practice, how its utility could be assessed and its true value to both clinicians and patients could be established. Although some unanswered questions remain, current evidence suggests that FeNO is potentially a valuable tool for improving the personalised management of inflammatory airway diseases.
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46.
  • Bjermer, Leif, et al. (författare)
  • Editorial
  • 2003
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 97:4, s. 294-294
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
  •  
47.
  • Bjermer, Leif (författare)
  • Evidence-based recommendations or "Show me the patients selected and I will tell you the results"
  • 2006
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 100, s. 17-21
  • Tidskriftsartikel (refereegranskat)abstract
    • Modern treatment decision making in medicine is recommended to be evidence based. In order to have a high grade of evidence, the studies should have sufficient power, be randomized and double blinded. Moreover, the evaluation parameters should be solid and reproducible. While there is a lot focus on primary study design much less is focused on patient eligibility and to what extent the patients included in a clinical trial are representative for the patients treated in “real life”. By knowing the profile and action of the drug it is thus often possible to design inclusion criteria's that already from the start, with high probability, predict the results. If you wish to prove that the addition of long-acting beta-2 agonist is better that increasing the anti-inflammatory treatment you should select mild stable and highly reversible patients. On the other hand, if you wish to prove that increasing anti-inflammatory treatment is beneficial, you choose patients proven to be steroid responsive and slightly under treated. Applying common inclusion and exclusion criteria's often render only a few percent of the patient population eligible. This is often forgot, when the results from these strictly selected patient populations are extrapolated into “evidence based” treatment recommendations directed towards a much larger and less selected patient population. Thus when evidence are graded, it is important also to consider to what extent the results are extendable to a much larger “real life” patient population. Modern asthma management must consider pathophysiological mechanisms that not necessarily are reflected by lung function parameters. Demands from medical authorities as the medical authorities in Europe (EMEA) asking for 15% reversibility of asthma study patients,helps to conserve the imbalance between clinical trials and real life.
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48.
  •  
49.
  • Bjermer, Leif (författare)
  • History and future perspectives of treating asthma as a systemic and small airways disease
  • 2001
  • Ingår i: Respiratory Medicine. - : Elsevier BV. - 1532-3064 .- 0954-6111. ; 95:9, s. 703-719
  • Tidskriftsartikel (refereegranskat)abstract
    • Asthma is an inflammatory disorder in which the small airways of the lung play an important role. There is also evidence for the systemic nature of asthma. No current method adequately measures small airways function alone. Therefore, a combination of functional and clinical parameters should be used to ensure that patients with asthma are adequately treated with due consideration of the small airways. Previously therapeutic strategies have focused on bronchodilation and attenuation of airway inflammation.While early oral therapies had the advantage of reaching the small airways and treating the systemic aspect of asthma, they were associated with serious side-effects. Inhaled therapies were therefore developed to limit these effects. However, inhaled therapies have the disadvantage of limited penetration into the peripheral airways and an inability to treat the systemic component of asthma. They are also associated with local and systemic side-effects. The future for asthma treatment is likely to be a systemically administered medication with few side-effects targeting disease-specific mediators. The leukotriene receptor antagonists and anti-IgE monoclonal antibodies are examples of such therapies and the emergence of other new strategies is awaited.
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50.
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