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Träfflista för sökning "hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Kardiologi) srt2:(2005-2009)"

Sökning: hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Kardiologi) > (2005-2009)

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  • Strömland, Kerstin, 1934, et al. (författare)
  • Oculo-auriculo-vertebral spectrum: associated anomalies, functional deficits and possible developmental risk factors.
  • 2007
  • Ingår i: American Journal of Medical Genetics. Part A. - : Wiley. - 1552-4825 .- 1552-4833. ; 143A:12, s. 1317-1325
  • Tidskriftsartikel (refereegranskat)abstract
    • Swedish patients with the oculo-auriculo-vertebral (OAV) spectrum participated in a prospective multidisciplinary investigation. The aims of the study were to describe their systemic and functional defects, especially autism spectrum disorders, and to search for possible etiologic risk factors. Available medical records were studied and the mothers answered a questionnaire on history of prenatal events. A clinical examination evaluating systemic findings, vision, hearing, speech, oral and swallowing function, and neuropsychiatric function, especially autism, was made. Eighteen patients, (11 males, 7 females) aged 8 months to 17 years with OAV were studied. Most frequent systemic malformations included, ear abnormalities (100%), ocular malformations (72%), vertebral deformities (67%), cerebral anomalies (50%), and congenital heart defects (33%). Functional defects consisted of hearing impairment (83%), visual impairment (28%), both visual and hearing impairment (28%), difficulties in feeding/eating (50%), speech (53%), mental retardation (39%), and severe autistic symptoms (11%). Three children were born following assisted fertilization (two intracytoplasmatic sperm injection, one in vitro fertilization), two mothers reported early bleedings, and six (33%) mothers had smoked during pregnancy.
  • Borgquist, Rasmus, et al. (författare)
  • Coronary flow velocity reserve reduction is comparable in patients with erectile dysfunction and in patients with impaired fasting glucose or well-regulated diabetes mellitus
  • 2007
  • Ingår i: European Journal of Cardiovascular Prevention & Rehabilitation. - 1741-8275. ; 14:2, s. 258-264
  • Tidskriftsartikel (refereegranskat)abstract
    • Background There is growing evidence that erectile dysfunction is a sentinel for future coronary artery disease. Recently published studies have shown signs of impaired coronary endothelial function in patients with erectile dysfunction, without clinical cardiovascular disease and diabetes. We evaluated the magnitude of coronary vasodilatory dysfunction in men with erectile dysfunction, as compared with men with impaired glucose metabolism (impaired fasting glucose or diabetes) and healthy controls. Methods We investigated men aged 68-73 years with erectile dysfunction (n=12), age-matched men with impaired glucose metabolism, who all proved to have erectile dysfunction (n=15), and age-matched male controls (n=12). Erectile dysfunction was evaluated using the International Index of Erectile Function (IIEF)-5 questionnaire. Coronary flow velocity reserve in the left anterior descending artery was examined using Doppler ultrasound and intravenous adenosine provocation. Results Coronary flow velocities at rest did not differ between the three groups, but maximum coronary flow velocity was significantly lower in the erectile dysfunction group (P= 0.004) and in the impaired glucose metabolism group (P= 0.019), as compared with controls. There was no difference between the erectile dysfunction and impaired glucose metabolism groups. Coronary flow velocity reserve was reduced in the erectile dysfunction group (P=0.026) compared to controls, but was similar compared to the impaired glucose metabolism group. In multivariate analysis including all groups, erectile dysfunction score was the only independent predictor of reduced coronary flow velocity reserve (P=0.020). Conclusions The magnitude of early coronary endothelial and smooth muscle cell dysfunction in otherwise healthy men with erectile dysfunction was comparable to that of patients with impaired glucose metabolism: a well known risk factor for coronary artery disease.
  • Follin, Cecilia, et al. (författare)
  • Improvement in cardiac systolic function and reduced prevalence of metabolic syndrome after 2 years of GH treatment in GH deficient adult survivors of childhood acute lymphoblastic leukaemia.
  • 2006
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - : The Endocrine Society. - 1945-7197 .- 0021-972X. ; 91:5, s. 1872-1875
  • Tidskriftsartikel (refereegranskat)abstract
    • Context: Survivors of childhood- onset ( CO) acute lymphoblastic leukemia ( ALL) treated with prophylactic cranial radiotherapy often exhibit GH deficiency ( GHD), which is associated with increased prevalence of cardiovascular risk factors and cardiac dysfunction. Objective: The objective of the study was to evaluate the effect of GH replacement on cardiovascular risk factors and cardiac function in former CO ALL patients. Design: Eighteen former CO ALL patients ( aged 19 - 32 yr) treated with cranial radiotherapy ( 18 - 24 Gy) and chemotherapy and with confirmed GHD were studied at baseline and after 12 ( n = 18) and 24 months ( n = 13) of GH treatment ( median 0.5 mg/ d). A group of 18 age- and sex- matched subjects served as controls. Results: After 12 months of GH treatment, a significant decrease in serum leptin ( P = 0.002), leptin per kilogram fat mass ( FM) ( P = 0.01),plasma glucose ( P = 0.004), FM ( P = 0.002), and hip ( P = 0.04) and waist ( P = 0.02) circumference and increased muscle mass ( P = 0.004) were recorded in the patients. Before GH treatment six patients had a metabolic syndrome, but after 12 months only one had it and after 24 months none. After 24 months of GH treatment, an increase in left ventricular mass index ( P = 0.06) and significant improvements in cardiac systolic function, measured as fractional shortening ( P = 0.03) and ejection fraction ( P = 0.03), were recorded. Conclusions: Improvement in cardiac systolic function and reduced prevalence of metabolic syndrome were recorded after 2 yr of GH replacement in former CO ALL patients with GHD. Long- term follow-up is highly warranted.
  • Tasevska, Gordana, et al. (författare)
  • Gender aspects on survival among patients admitted to hospital with suspected or diagnosed heart failure.
  • 2008
  • Ingår i: Scandinavian Cardiovascular Journal. - : Informa UK Limited. - 1651-2006 .- 1401-7431. ; 42, s. 383-391
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives and design. There are conflicting data on gender differences in survival among heart failure (HF) patients. We prospectively assessed gender differences in survival among 930 consecutive patients (464 [49.9%] women, mean age 76.1 +/- 10.1 years), admitted to hospital with suspected or diagnosed HF. Results. Overall, women had lower unadjusted mortality hazard ratio (HR) than men: HR 0.827; 95% confidence interval (CI) 0.690-0.992; p = 0.040. Adjusted HR was 0.786; 95% CI 0.601-1.028; p = 0.079. Unadjusted mortality was significantly higher among patients with a discharge HF diagnosis, compared to those without: HR 1.330; 95% CI 1.107-1.597; p = 0.002; adjusted p = 0.289. Women and men with a discharge HF diagnosis had similar survival: unadjusted HR 1.052; 95% CI 0.829-1.336; p = 0.674; adjusted HR 0.875; 95% CI 0.625-1.225; p = 0.437. Women had lower mortality risk among patients without a discharge HF diagnosis: HR 0.630, 95% CI 0.476-0.833, p = 0.001; adjusted HR 0.611, p = 0.036. Conclusion. Prognosis was poor among patients hospitalised with suspected or diagnosed HF. Among all patients, women had better survival, whereas both sexes had similar survival when the HF diagnosis was certified.
  • Brondén, Björn, et al. (författare)
  • The kinetics of lipid micro-emboli during cardiac surgery studied in a porcine model.
  • 2008
  • Ingår i: Scandinavian Cardiovascular Journal. - : Informa UK Limited. - 1651-2006 .- 1401-7431. ; 42, s. 411-416
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. To study the kinetics of lipid micro-emboli during cardiac surgery. Design. Eleven pigs were studied. Seven of these were put on extracorporeal circulation. A shed blood phantom consisted of blood, saline and radioactive triolein was added to the circuit. Both venous and arterial blood samples were taken at short intervals. Four animals were used to study renal kinetics without extracorporeal circulation. The same kind of shed blood phantom was infused into the ascending aorta. Samples were taken from the renal artery and vein. All samples were analyzed for radioactivity by scintillation counting. Results. A median 130-fold increase in radioactivity was seen in the blood and was quickly eliminated. Systemic first-pass wedging was found to be 62%. The first-pass elimination in the kidney was 77%. No radioactivity was found in urine. Conclusions. This study shows that the turnover of lipid micro-emboli is fast, and that the majority of the emboli are trapped on their first passage through the capillary system. No evidence was found of a renal excretion of these lipid emboli.
  • Lindstedt Ingemansson, Sandra, et al. (författare)
  • Evaluation of continuous and intermittent myocardial topical negative pressure.
  • 2008
  • Ingår i: Journal of Cardiovascular Medicine. - 1558-2027. ; 9:8, s. 813-819
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Topical negative pressure, commonly used in wound therapy, has been shown to increase blood flow and stimulate angiogenesis in subcutaneous tissue and skeletal muscle. In wound therapy, intermittent negative pressure is often preferred to continuous negative pressure as tissue exposed to intermittent therapy shows twice as much granulation tissue formation than that exposed to continuous pressure after 2 weeks of therapy. The present study was designed to elucidate the differences in microvascular blood flow in the left anterior descending artery area between continuous and intermittent myocardial topical negative pressure of -50 mmHg. METHODS: Six pigs underwent median sternotomy. Laser Doppler probes were inserted horizontally into the heart muscle in the left anterior descending artery area at depths of approximately 5-6 mm. Measurements of microvascular blood flow were performed in normal myocardium and ischemic myocardium during 20 min of countinuous and intermittent topical negative pressure at -50 mmHg. RESULTS: Both continuous and intermittent topical negative pressure of -50 mmHg significantly increased microvascular blood flow in the underlying myocardium: from 56.2 +/- 13.1 perfusion units (PU) before to 132.8 +/- 7.4 PU during countinuous topical negative pressure application (P < 0.05) and from 75.8 +/- 12.1 PU before to 153.6 +/- 4.7 PU during intermittent topical negative pressure application (P < 0.05). CONCLUSION: No statistically significant difference was found between microvascular blood flow during 20 min of continuous and intermittent topical negative pressure at -50 mmHg in this porcine model.
  • Lindstedt Ingemansson, Sandra, et al. (författare)
  • Impact of different topical negative pressure levels on myocardial microvascular blood flow.
  • 2008
  • Ingår i: Cardiovascular Revascularization Medicine. - : Elsevier BV. - 1878-0938 .- 1553-8389. ; 9:1, s. 29-35
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: We have previously shown that a myocardial topical negative pressure (TNP) of -50 mmHg significantly increases microvascular blood flow in the underlying myocardium in normal, ischemic, and reperfused porcine myocardium. The present study was designed to elucidate the effect of different TNP levels between -50 and -150 mmHg on microvascular flow in normal and ischemic myocardium. MATERIALS AND METHODS: Seven pigs underwent median sternotomy. The microvascular blood flow in the myocardium was recorded, before and after the application of TNP, using laser Doppler velocimetry. Analyses were performed before left anterior descending artery (LAD) occlusion (normal myocardium) and after 20 min of LAD occlusion (ischemic myocardium). RESULTS: A TNP of -50 mmHg significantly increased microvascular blood flow in both normal (from 320.0+/-56.1 PU before TNP application to 435.7+/-65.5 PU after TNP application, P=.028) and ischemic myocardium (from 110.0+/-36.7 PU before TNP application to 194.3+/-56.2 PU after TNP application, P=.012). TNP between -75 and -150 mmHg showed no significant increase in microvascular blood flow in normal or ischemic myocardium. CONCLUSIONS: Of pressures between -50 and -150 mmHg, a TNP of -50 mmHg seems to be the most effective negative pressure concerning significant increase in microvascular blood flow in both normal and ischemic myocardium.
  • Lindstedt Ingemansson, Sandra, et al. (författare)
  • Topical negative pressure effects on coronary blood flow in a sternal wound model.
  • 2008
  • Ingår i: International Wound Journal. - 1742-481X. ; 5:4, s. 503-509
  • Tidskriftsartikel (refereegranskat)abstract
    • Several studies have suggested that mediastinitis is a strong predictor for poor long-term survival after coronary artery bypass surgery (CABG). In those studies, several conventional wound-healing techniques were used. Previously, we have shown no difference in long-term survival between CABG patients with topical negative pressure (TNP)-treated mediastinitis and CABG patients without mediastinitis. The present study was designed to elucidate if TNP, applied over the myocardium, resulted in an increase of the total amount of coronary blood flow. Six pigs underwent median sternotomy. The coronary blood flow was measured, before and after the application of TNP (-50 mmHg), using coronary electromagnetic flow meter probes. Analyses were performed before left anterior descending artery (LAD) occlusion (normal myocardium) and after 20 minutes of LAD occlusion (ischaemic myocardium). Normal myocardium: 171.3 +/- 14.5 ml/minute before to 206.3 +/- 17.6 ml/minute after TNP application, P < 0.05. Ischaemic myocardium: 133.7 +/- 18.4 ml/minute before to 183.2 +/- 18.9 ml/minute after TNP application, P < 0.05. TNP of -50 mmHg applied over the LAD region induced a significant increase in the total coronary blood flow in both normal and ischaemic myocardium.
  • Malmsjö, Malin, et al. (författare)
  • Negative-pressure wound therapy using gauze or open-cell polyurethane foam: similar early effects on pressure transduction and tissue contraction in an experimental porcine wound model.
  • 2009
  • Ingår i: Wound Repair and Regeneration. - 1524-475X. ; 17:2, s. 200-205
  • Tidskriftsartikel (refereegranskat)abstract
    • Negative-pressure wound therapy (NPWT), also known as topical negative-pressure therapy, is widely used to manage wounds and accelerate healing. NPWT has so far been delivered mainly via open-cell polyurethane foam, but increasing interest has been directed toward delivering NPWT via gauze. In the present study, the early effects of NPWT on pressure transduction and wound contraction were examined in wounds filled with either polyurethane foam or gauze. An experimental setup of a porcine wound model was used, in which the animals were anesthetized for 12-14 hours. Negative pressures between -50 and -175 mmHg were applied in -25 mmHg increments. Wound bed pressure was measured using a saline filled catheter sutured to the bottom of the wound. The contraction of the wound edges was also determined. The recordings were performed upon reaching steady state, which typically occurred within 1 minute. For both fillers, wound bed negative pressure increased linearly with delivered vacuum with little deviation from set pressure (correlation coefficient 0.99 in both cases). Similar tissue contraction was observed when using foam and gauze. The most prominent contraction was observed in the range of 0 to -50 mmHg with greater vacuum only producing minor further movement of the wound edge. In conclusion, the present experimental study shows that gauze and foam are equally effective at delivering negative pressure and creating mechanical deformation of the wound.
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