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Sökning: WFRF:(Wachtell Kristian)

  • Resultat 1-10 av 79
  • [1]234567...8Nästa
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1.
  • Ibsen, H., et al. (författare)
  • Does albuminuria predict cardiovascular outcome on treatment with losartan versus atenolol in hypertension with left ventricular hypertrophy? A LIFE substudy
  • 2004
  • Ingår i: J Hypertens. - 0263-6352. ; 22:9, s. 1805-11
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To examine a possible relationship between baseline albuminuria and effect of losartan versus atenolol on cardiovascular (CV) events in hypertensive patients with left ventricular hypertrophy, the effect of losartan versus atenolol on albuminuria, and whether the benefits of losartan versus atenolol could be explained by influence of losartan on albuminuria. DESIGN: Double-blind, randomized, controlled trial of 4.8 years. SETTING: Out-patient setting. PATIENTS: A total of 8206 with hypertension and left ventricular hypertrophy. INTERVENTIONS: Losartan or atenolol, supplemented with diuretics and/or calcium antagonists to reach blood pressure < 140/90 mmHg MAIN OUTCOME MEASURES: The urine albumin/creatinine ratio, and the primary composite endpoint (CEP) of CV death, myocardial infarction, and stroke. RESULTS: The blood pressure was reduced similarly on losartan (30.2/16.6 mmHg) versus atenolol (29.1/16.8 mmHg). The risk of a primary CEP increased linearly from the lowest to the highest decile of baseline albuminuria. The benefits of losartan versus atenolol for the primary CEP and for stroke tended to be more pronounced among patients above the median value for baseline albuminuria (urine albumin/creatinine ratio, 1.28 mg/mmol). The decrease in albuminuria was significantly greater with losartan versus atenolol throughout the study (a decrease from baseline to year 2 of 33% losartan versus 25% atenolol). One-fifth of the difference in favor of losartan on the primary CEP was explained by the greater reduction in albuminuria on losartan. CONCLUSIONS: Baseline albuminuria is a powerful risk factor for CV events. Baseline albuminuria did not identify the group of patients with greatest benefit on losartan versus atenolol in LIFE. Reduction in albuminuria explained one-fifth of the benefits of losartan versus atenolol.
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  • Chinali, M., et al. (författare)
  • Mitral E wave deceleration time to peak E velocity ratio and cardiovascular outcome in hypertensive patients during antihypertensive treatment (from the LIFE echo-substudy)
  • 2009
  • Ingår i: The American Journal of Cardiology. - 1879-1913 .- 0002-9149. ; 104:8, s. 1098-104
  • Tidskriftsartikel (refereegranskat)abstract
    • The early mitral flow deceleration time (DTE) is a prognostically validated marker of left ventricular diastolic dysfunction. It has been reported that the DTE is influenced by the loading conditions, which can vary during antihypertensive treatment. We hypothesized that normalization of the DTE for mitral peak E-velocity (mitral deceleration index [MDI]) might better predict incident cardiovascular (CV) events in hypertensive patients during treatment compared to DTE alone or other traditional indexes of diastolic function, such as the mitral E/A ratio. We evaluated 770 hypertensive patients with electrocardiogram findings of left ventricular hypertrophy (age 66 +/- 7 years; 42% women) enrolled in the Losartan Intervention For Endpoint reduction in hypertension (LIFE) echocardiographic substudy. Echocardiographic examinations were performed annually for 5 years during intensive antihypertensive treatment. We examined the utility of the MDI at baseline and as a time-varying predictor of incident CV events. Of the 770 patients, 70 (9%) had CV events. The baseline MDI was positively associated with age and relative wall thickness and negatively associated with gender and heart rate (all p <0.01). Unadjusted Cox regression analysis showed a positive association between the baseline MDI and CV events (hazard ratio 1.21, 95% confidence interval 1.07 to 1.37, p = 0.002). In the time-varied Cox models, a greater in-treatment MDI was associated with a greater rate of CV events (hazard ratio 1.43, 95% confidence interval 1.05 to 1.93, p = 0.022), independently of the covariates. No significant association was found for in-treatment DTE or any of the prognostically validated indexes of diastolic function. In conclusion, in our population of patients with treated hypertension with electrocardiographic findings of left ventricular hypertrophy, the MDI independently predicted future CV events. Normalization of DTE for E velocity might be preferred to other traditional diastolic function indexes in evaluating diastolic function during antihypertensive treatment.
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  • Cicala, Silvana, et al. (författare)
  • Clinical impact of 'in-treatment' wall motion abnormalities in hypertensive patients with left ventricular hypertrophy : the LIFE study
  • 2008
  • Ingår i: Journal of Hypertension. - Philadelphia : Lippincott Williams & Wilkins. - 0263-6352 .- 1473-5598. ; 26:4, s. 806-812
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: Left ventricular systolic wall motion abnormalities have prognostic value. Whether wall motion detected by serial echocardiographic examinations predicts prognosis in hypertensive patients with left ventricular hypertrophy (LVH) without clinically recognized atherosclerotic disease has, however, never been investigated. We examined whether 'in-treatment' wall motion abnormalities predicted outcome in the Losartan Intervention For Endpoint (LIFE) reduction in hypertension echocardiographic substudy.METHODS: We studied 749 patients without coronary artery disease, myocardial infarction (MI), or stroke history. Echocardiographic segmental wall motion abnormalities at baseline and annual re-evaluations ('as time-varying covariate') were examined in relation to endpoints (cardiovascular mortality, MI, stroke, and hospitalized heart failure). Adjusted Cox regression was used to analyze the primary composite endpoint of cardiovascular death, MI, or stroke and, separately, for fatal and nonfatal MI and hospitalized heart failure.RESULTS: During a mean follow-up of 4.8 years, an event was recorded in 67 (9%) patients. In Cox models after adjusting for age, gender, treatment, blood pressure lowering, and serial change of left ventricular mass index, 'in-treatment' segmental wall motion abnormalities were associated with subsequent composite endpoint [hazard ratio = 2.1, 95% confidence interval (CI) 1.1-3.8; P = 0.019] and MI [hazard ratio = 3.7 (1.5-8.9); P = 0.004].CONCLUSION: In hypertensive patients with LVH and no history of cardiovascular disease, 'in-treatment' left ventricular wall motion abnormalities are associated with increased likelihood of subsequent cardiovascular events independent of age, gender, blood pressure lowering, treatment modality, and in-treatment left ventricular mass index.
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  • Eijkelkamp, W. B., et al. (författare)
  • Renal function and risk for cardiovascular events in type 2 diabetic patients with hypertension: the RENAAL and LIFE studies
  • 2007
  • Ingår i: J Hypertens. - 0263-6352. ; 25:4, s. 871-6
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To investigate whether a threshold exists for cardiovascular risk in type 2 diabetic patients with hypertension, the association between renal function and cardiovascular risk was examined across the entire physiological range of serum creatinine. DESIGN AND METHODS: The RENAAL and LIFE studies enrolled 1513 and 1195 patients with type 2 diabetes and hypertension, respectively. The relationship between baseline serum creatinine and the risk for a composite outcome of myocardial infarction, stroke or cardiovascular death was examined using Cox regression models. To adjust for heterogeneity between studies and treatment groups, these factors were included as strata when applicable. The analyses were conducted with adjustment for age, gender, smoking, alcohol use, blood pressure, heart rate, total and high-density lipoprotein (HDL) cholesterol, hemoglobin, albuminuria and prior cardiovascular disease. RESULTS: The hazard ratios across the baseline serum creatinine categories < 0.9 mg/dl, 0.9-1.2 mg/dl, 1.2-1.6 mg/dl, 1.6-2.8 mg/dl and >or= 2.8 mg/dl were 0.51 (95% confidence interval 0.34, 0.74), 0.74 (0.55, 1.00), 1.00 (reference), 1.24 (0.96, 1.59) and 1.67 (1.17, 2.91), respectively. Baseline serum creatinine (per mg/dl) strongly predicted the composite cardiovascular endpoint in LIFE [2.82(1.74,4.56), P < 0.001], RENAAL [1.41(1.12,1.79), P < 0.001], as well as the combined studies [1.51(1.21,1.87), P < 0.001]. CONCLUSION: A progressively higher risk for the composite cardiovascular endpoint was observed with incremental baseline serum creatinine in type 2 diabetic patients with hypertension, even within the normal range. Thus, there appears to be no serum creatinine threshold level for an increased cardiovascular risk. Baseline serum creatinine was a major independent risk factor for cardiovascular disease (www.ClinicalTrials.gov number NCT00308347).
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  • Lonnebakken, Mai T., et al. (författare)
  • In-treatment stroke volume predicts cardiovascular risk in hypertension
  • 2011
  • Ingår i: Journal of Hypertension. - 0263-6352 .- 1473-5598. ; 29:8, s. 1508-1514
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective To evaluate whether lower stroke volume during antihypertensive treatment is a predictor of cardiovascular events independent of left ventricular geometric pattern. Methods The association between left ventricular stroke volume and combined cardiovascular death, stroke and myocardial infarction, the prespecified primary study endpoint, was assessed in Cox regression analysis using data from baseline and annual follow-up visits in 855 patients during 4.8 years of randomized losartan-based or atenolol-based treatment in the Losartan Intervention For Endpoint reduction in hypertension (LIFE) echocardiography substudy. Results During follow-up, a total of 91 primary endpoints occurred. At baseline, lower left ventricular stroke volume was associated with smaller body size, female sex, lower left ventricular mass and stress-corrected midwall shortening, higher relative wall thickness and total peripheral resistance, more concentric left ventricular geometry and impaired diastolic relaxation (all P<0.01). Baseline stroke volume did not predict outcome. However, in time-varying multivariable Cox regression analysis, lower in-treatment left ventricular stroke volume indexed for height(2.04) was associated with higher risk of cardiovascular events {hazard ratio 1.69 per 1 SD (6 ml/m(2.04)) lower stroke volume [95% confidence interval (CI) 1.35-2.11], P<0.001} independent of in-treatment left ventricular mass and concentric geometry and in a secondary model also independent of stress-corrected midwall shortening, impaired diastolic relaxation, heart rate, new-onset atrial fibrillation and study treatment [hazard ratio 1.46 per 1 SD (6 ml/m(2.04)) lower stroke volume (95% CI 1.13-1.88)]. Conclusion Assessment of in-treatment left ventricular stroke volume may reflect cardiac and vascular remodeling and impairment and, hence, adds information on cardiovascular risk in treated hypertensive patients beyond assessment of left ventricular structure alone. 
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