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Sökning: WFRF:(Li Xinjun) > Smith Gustav

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  • Andell, Pontus, et al. (författare)
  • Epidemiology of valvular heart disease in a Swedish nationwide hospital-based register study
  • 2017
  • Ingår i: Heart. - : BMJ. - 1355-6037 .- 1468-201X. ; 103:21, s. 1696-1703
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Transitions in the spectrum of valvular heart diseases (VHDs) in developed countries over the 20th century have been reported from clinical case series, but large, contemporary population-based studies are lacking.Methods: We used nationwide registers to identify all patients with a first diagnosis of VHD at Swedish hospitals between 2003 and 2010. Age-stratified and sex-stratified incidence of each VHD and adjusted comorbidity profiles were assessed.Results: In the Swedish population (n=10 164 211), the incidence of VHD was 63.9 per 100 000 person-years, with aortic stenosis (AS; 47.2%), mitral regurgitation (MR; 24.2%) and aortic regurgitation (AR; 18.0%) contributing most of the VHD diagnoses. The majority of VHDs were diagnosed in the elderly (68.9% in subjects aged ≥65 years), but pulmonary valve disease incidence peaked in newborns. Incidences of AR, AS and MR were higher in men who were also more frequently diagnosed at an earlier age. Mitral stenosis (MS) incidence was higher in women. Rheumatic fever was rare. Half of AS cases had concomitant atherosclerotic vascular disease (48.4%), whereas concomitant heart failure and atrial fibrillation were common in mitral valve disease and tricuspid regurgitation. Other common comorbidities were thoracic aortic aneurysms in AR (10.3%), autoimmune disorders in MS (24.5%) and abdominal hernias or prolapse in MR (10.7%) and TR (10.3%).Conclusions: Clinically diagnosed VHD was primarily a disease of the elderly. Rheumatic fever was rare in Sweden, but specific VHDs showed a range of different comorbidity profiles . Pronounced sex-specific patterns were observed for AR and MS, for which the mechanisms remain incompletely understood.
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  • Andell, Pontus, et al. (författare)
  • Neighborhood socioeconomic status and aortic stenosis : A Swedish study based on nationwide registries and an echocardiographic screening cohort
  • 2020
  • Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 318, s. 153-159
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Aortic stenosis (AS) is the most common valvular heart disease in developed countries, confers high mortality in advanced cases, but can effectively be reversed using endovascular or open-heart surgery. We evaluated the association between AS and neighborhood socioeconomic status (NSES). Methods: We used Swedish population-based nationwide registers and an echocardiography screening cohort during the study period 1997–2014. NSES was determined by an established neighborhood deprivation index composed of education, income, unemployment, and receipt of social welfare. Multilevel adjusted logistic regression models determined the association between NSES and incident AS (according to ICD-10 diagnostic codes). Results: The study population of men and women (n=6,641,905) was divided into individuals living in high (n = 1,608,815 [24%]), moderate (n = 3,857,367 [58%]) and low (n = 1,175,723 [18%]) SES neighborhoods. There were 63,227 AS cases in total. Low NSES (versus high) was associated with a slightly increased risk of AS (OR 1.06 [95% CI 1.03–1.08]) in the nationwide study population. In the echocardiography screening cohort (n = 1586), the association between low NSES and AS was markedly stronger (OR: 2.73 [1.05–7.12]). There were more previously undiagnosed AS cases in low compared to high SES neighborhoods (3.1% versus 1.0%). Conclusions: In this nationwide Swedish register study, low NSES was associated with a slightly increased risk of incident AS. However, the association was markedly stronger in the echocardiography screening cohort, which revealed an almost three-fold increase of AS among individuals living in low SES neighborhoods, possibly indicating an underdiagnosis of AS among these individuals.
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  • Berntsson, John, et al. (författare)
  • Risk of Stroke in Patients With Atrial Fibrillation Is Associated With Stroke in Siblings : A Nationwide Study
  • 2020
  • Ingår i: Journal of the American Heart Association. - 2047-9980. ; 9:3, s. 014132-014132
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: It remains unclear whether heritable factors can contribute to risk stratification for ischemic stroke in patients with atrial fibrillation (AF). We examined whether having a sibling with ischemic stroke was associated with increased risk of ischemic stroke and mortality in patients with AF. Methods and Results: In this nationwide study of the Swedish population, patients with AF and their siblings were identified from the Swedish patient registers and the Swedish MGR (Multi-Generation Register). Ischemic stroke events were retrieved from the Swedish patient registers and CDR (Cause of Death Register). Risk of ischemic stroke was compared between patients with AF with and without a sibling affected by ischemic stroke, AF, or both ischemic stroke and AF. The total study population comprised 113 988 subjects (mean age, 60±12 years) diagnosed with AF between 1989 and 2012. In total, 11 709 of them were diagnosed with a first ischemic stroke and 20 097 died during a mean follow-up time of 5.5 years for ischemic stroke and 5.9 years for mortality. After adjustment for covariates having a sibling with ischemic stroke, or both ischemic stroke and AF, was associated with increased risk of ischemic stroke (hazard ratio, 1.31; 95% CI, 1.23-1.40 or hazard ratio, 1.36; 95% CI, 1.24-1.49, respectively). Furthermore, ischemic stroke in a sibling was associated with all-cause mortality (hazard ratio, 1.09; 95% CI, 1.05-1.14). In contrast, the risk of stroke was only marginally increased for patients with AF with a spouse affected by ischemic stroke. Conclusions: Having a sibling affected by ischemic stroke confers an increased risk of ischemic stroke and death independently of traditional risk factors in patients with AF.
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  • Lindgren, Magnus P., et al. (författare)
  • Familial Mortality Risks in Patients With Heart Failure : A Swedish Sibling Study
  • 2018
  • Ingår i: Journal of the American Heart Association. - 2047-9980. ; 7:24
  • Tidskriftsartikel (refereegranskat)abstract
    • Background The influence of familial factors on the prognosis of heart failure (HF) is unknown. This nationwide follow‐up study aimed to determine familial mortality risks of HF among Swedish siblings hospitalized for HF. Methods and Results We linked several Swedish nationwide registers for individuals aged 0 to 80 years. The study population consisted of 373 people hospitalized for HF for the first time between 2000 and 2012 with 1 proband sibling previously hospitalized for HF for the first time between 2000 and 2007. Families with congenital heart disease were excluded. Familial hazard ratios (HRs) for mortality after first HF hospitalization were determined with Cox regression. The influence of proband survival was categorized as short survival (<5 years) or long survival (≥5 years) and determined continuously for the initial 5 years of proband survival. Adjustments were made for age, sex, time period, and common HF comorbidities. Short proband survival was associated with a HR of 2.02 (95% confidence interval, 1.32–3.09) for overall mortality. This HR was 2.35 (95% confidence interval, 1.18–4.67) in patients without preceding coronary heart disease, whereas patients with ischemic HF had an HR of 1.84 (95% confidence interval, 1.05–3.23). For each year of proband survival, the risk of death decreased, with a HR of 0.86 (95% confidence interval, 0.77–0.98). Conclusions Our results suggest that family history of poor survival in specific relation to HF is an important risk factor for death in HF patients. Additional studies are needed to characterize the molecular underpinnings and detailed phenotypic characteristics of such patients.
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  • Lindgren, Magnus P., et al. (författare)
  • Sibling risk of hospitalization for heart failure – A nationwide study
  • 2016
  • Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273. ; 223, s. 379-384
  • Tidskriftsartikel (refereegranskat)abstract
    • Background The familial risks of heart failure (HF) remain largely undetermined. This nationwide follow-up study aimed at determining risk of hospitalization for HF conferred by affected siblings. Methods and results Swedish Multi-generation Register data, with records of at least one full sibling available at start of follow-up, were linked to the Hospital Discharge Register data for 1987–2010. The oldest participants were aged 78 years in 2010. Relative risks, standardized incidence ratios (SIRs), of HF hospitalization were calculated for individuals with siblings hospitalized with HF compared with those whose siblings were not. Adjustments were made for common HF comorbidities, age, time period, socioeconomic status and region. During the 24 year follow-up (1987–2010) 23,212 individuals (7155 females), were hospitalized because of HF. From this total, 1121 had at least one full sibling hospitalized for HF. Sibling risks were generally similar for males and females. The SIR of HF hospitalization was 1.62 (95% confidence interval 1.54–1.70) for individuals with one affected sibling and 15.46 (12.82–18.50) for individuals with two affected siblings. The SIR conferred by one or more affected siblings was 2.67 (2.24–3.16) below the age of 50 years, 1.92 (1.75–2.10) between 50 and 59 years of age, 1.63 (1.52–1.76) between 60 and 69 years of age, and 1.54 (1.38–1.71) between 70 and 78 years of age. Spouses had low familial risks: SIR = 1.04 (1.03–1.06). Conclusions Familial factors are important risk factors in HF, with particularly high risks among individuals with two or more affected siblings and in early onset of HF.
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  • Martinsson, Andreas, et al. (författare)
  • Familial Aggregation of Aortic Valvular Stenosis : A Nationwide Study of Sibling Risk
  • 2017
  • Ingår i: Circulation: Cardiovascular Genetics. - 1942-325X. ; 10:6
  • Tidskriftsartikel (refereegranskat)abstract
    • Background - Aortic valvular stenosis (AS) is the most common cause of cardiac valvular replacement surgery. During the last century, the pathogenesis of AS has undergone transitions in developed countries, from rheumatic heart disease to a degenerative calcific pathogenesis. Although a familial component has been described for a subset of cases with a bicuspid valve, data are limited on the overall familial aggregation of this disease. Methods and Results - Contemporary information on 6 117 263 Swedish siblings, of which 13 442 had a clinical diagnosis of AS, was collected from the nationwide Swedish Multi-Generation Register and the National Patient Register. A total of 4.8% of AS cases had a sibling history of AS. Having at least 1 sibling with AS was associated with a hazard ratio of 3.41 (95% confidence interval, 2.23-5.21) to be diagnosed with AS in an adjusted model. Individuals with >1 sibling with AS had an exceptionally high risk (hazard ratio, 32.84) but were uncommon (34 siblings from 11 sibships). In contrast, spouses of subjects with AS were only slightly more likely to be diagnosed with AS compared with subjects without spousal AS (hazard ratio 1.16 for husbands and 1.18 for wives). Conclusions - A sibling history of clinically diagnosed AS was associated with increased risk of AS. Spouses of patients with AS only had a modest risk increase, suggesting that shared adult environmental factors contribute less to the development of AS than genetic factors.
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  • Martinsson, Andreas, et al. (författare)
  • Outcomes associated with dual antiplatelet therapy after myocardial infarction in patients with aortic stenosis
  • 2019
  • Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273.
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Acquired loss of the largest von Willebrand factor multimers is a common hemostatic disturbance in patients with aortic valve stenosis (AS), resulting in impaired platelet adhesion and increased bleeding risk. AS is also associated with atherosclerosis and myocardial infarction (MI). Our aim was to study the clinical outcomes associated with AS in MI patients treated with dual antiplatelet therapy (DAPT) in a nationwide hospital-based register study. Methods: Based on nationwide hospital discharge registers from Sweden (2005–2010) and Denmark (2005–2015), we calculated 1-year incidence rates and hazard ratios of bleeding, recurrent MI, and all-cause mortality in MI patients with and without AS treated with DAPT. Results from both countries were also combined in a meta-analysis. Results: We included 50,460 MI patients from Sweden and 50,307 MI patients from Denmark, of which 3% had AS. The bleeding rates (per 100 person-years) in Sweden and Denmark were 3.2 and 3.3 among patients without AS vs. 9.2 and 8.3 among patients with AS. All-cause mortality rates were 7.1 vs. 28.7 in Sweden and 5.8 vs. 30.7 in Denmark among patients without and with AS, respectively. Patients with AS had an increased risk of bleeding, recurrent MI and all-cause mortality. Combined results from both countries were similar for bleeding (hazard ratio 1.59 [0.98–2.59]), recurrent MI (1.78 [1.25–2.54]), and all-cause mortality (1.76 [1.26–2.47]). Conclusion: AS was associated with an increased risk of bleeding, recurrent MI and mortality after MI when treated with DAPT. Individualized selection of antiplatelet therapy may be warranted in this high-risk population.
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