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Sökning: WFRF:(Gerdts Eva)

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1.
  • Bang, Casper N., et al. (författare)
  • Four-Group Classification of Left Ventricular Hypertrophy Based on Ventricular Concentricity and Dilatation Identifies a Low-Risk Subset of Eccentric Hypertrophy in Hypertensive Patients
  • 2014
  • Ingår i: Circulation Cardiovascular Imaging. - 1941-9651. ; 7:3, s. 422-429
  • Tidskriftsartikel (refereegranskat)abstract
    • Background-Left ventricular hypertrophy (LVH; high LV mass [LVM]) is traditionally classified as concentric or eccentric based on LV relative wall thickness. We evaluated the prediction of subsequent adverse events in a new 4-group LVH classification based on LV dilatation (high LV end-diastolic volume [EDV] index) and concentricity (mass/end-diastolic volume [M/EDV](2/3)) in hypertensive patients. Methods and Results-In the Losartan Intervention for Endpoint Reduction (LIFE) echocardiography substudy, 939 hypertensive patients with measurable LVM at baseline were randomized to a mean of 4.8 years of losartan- or atenolol-based treatment. Patients with LVH (LVM/body surface area >= 116 and >= 96 g/m(2) in men and woman, respectively) were divided into 4 groups-concentric nondilated (increased M/EDV, normal EDV), eccentric dilated (increased EDV, normal M/EDV), concentric dilated (increased M/EDV and EDV), and eccentric nondilated (normal M/EDV and EDV)-and compared with patients with normal LVM. Time-varying LVH classes were tested for association with all-cause and cardiovascular mortality and a composite end point of myocardial infarction, stroke, heart failure, and cardiovascular death in multivariable Cox analyses. At baseline, the LVs were categorized as eccentric nondilated in 12%, eccentric dilated in 20%, concentric nondilated in 29%, concentric dilated in 14%, and normal LVM in 25%. Treatment changed the prevalence of 4 LVH groups to 23%, 4%, 5%, and 7%; 62% had normal LVM after 4 years. In time-varying Cox analyses, compared with normal LVM, those with eccentric dilated and both concentric nondilated and dilated LVH had increased risks of all-cause or cardiovascular mortality or the composite end point, whereas the eccentric nondilated group did not. Conclusions-Hypertensive patients with relatively mild LVH without either increased LV volume or concentricity have similar risk of all-cause mortality or cardiovascular events because hypertensive patients with normal LVM seem to be a low-risk group.
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2.
  • Bang, Casper N., et al. (författare)
  • Systolic left ventricular function according to left ventricular concentricity and dilatation in hypertensive patients : the Losartan Intervention For Endpoint reduction in hypertension study
  • 2013
  • Ingår i: Journal of Hypertension. - Lippincott Williams & Wilkins. - 0263-6352. ; 31:10, s. 2060-2068
  • Tidskriftsartikel (refereegranskat)abstract
    • Background:Left ventricular hypertrophy [LVH, high left ventricular mass (LVM)] is traditionally classified as concentric or eccentric based on left ventricular relative wall thickness. We evaluated left ventricular systolic function in a new four-group LVH classification based on left ventricular dilatation [high left ventricular end-diastolic volume (EDV) index and concentricity (LVM/EDV(2/3))] in hypertensive patients.Methods and results:Nine hundred thirty-nine participants in the Losartan Intervention For Endpoint reduction in hypertension (LIFE) echocardiography substudy had measurable LVM at enrolment. Patients with LVH (LVM/body surface area 116g/m(2) in men and 96g/m(2) in women) were divided into four groups; eccentric nondilated' (normal LVM/EDV and EDV), eccentric dilated' (increased EDV, normal LVM/EDV), concentric nondilated' (increased LVM/EDV with normal EDV), and concentric dilated' (increased LVM/EDV and EDV) and compared to patients with normal LVM. At baseline, 12% had eccentric nondilated, 20% eccentric dilated, 29% concentric nondilated, and 14% concentric dilated LVH, with normal LVM in 25%. Compared with the concentric nondilated LVH group, those with concentric dilated LVH had significantly lower pulse pressure/stroke index and ejection fraction; higher LVM index, stroke volume, cardiac output, left ventricular midwall shortening, left atrial volume and isovolumic relaxation time; and more had segmental wall motion abnormalities (all P<0.05). Similar differences existed between patients with eccentric dilated and those with eccentric nondilated LVH (all P<0.05). Compared with patients with normal LVM, the eccentric nondilated had higher LV stroke volume, pulse pressure/stroke index, Cornell voltage product and SBP, and lower heart rate and fewer were African-American (all P<0.05).Conclusion:The new four-group classification of LVH identifies dilated subgroups with reduced left ventricular function among patients currently classified with eccentric or concentric LVH.
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3.
  • Boman, Kurt, et al. (författare)
  • Exercise and cardiovascular outcomes in hypertensive patients in relation to structure and function of left ventricular hypertrophy : the LIFE study.
  • 2009
  • Ingår i: European Journal of Cardiovascular Prevention & Rehabilitation. - 1741-8267. ; 16:2, s. 242-248
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Exercise lowers blood pressure and improves cardiovascular function, but little is known about whether exercise impacts cardiovascular morbidity and mortality independent of left ventricular hypertrophy (LVH) and LV geometry. DESIGN: Observational analysis of prospectively obtained echocardiographic data within the context of a randomized trial of antihypertensive treatment. METHODS: A total of 937 hypertensive patients with ECG LVH were studied by echocardiography in the Losartan Intervention For Endpoint reduction in hypertension study. Baseline exercise status was categorized as sedentary (never exercise), intermediate (30 min twice/week). During 4.8-year follow-up, 105 patients suffered the primary composite endpoint of myocardial infarction (MI), stroke, or cardiovascular death. MI occurred in 39, stroke in 60, and cardiovascular death in 33 patients. RESULTS: Sedentary individuals (n = 212) had, compared with those physically active (n = 511), higher heart rate (P<0.001), weight (P<0.001), body surface area (P = 0.02), body mass index (P<0.001), LV mass (LVM, P = 0.04), LVM indexed for height or body surface area (P = 0.004); thicker ventricular septum (P = 0.012) and posterior wall (P = 0.016); and larger left atrium (P = 0.006). Systolic variables did not differ. In Cox regression analysis, physically active compared with sedentary patients had lower risk of primary composite endpoint [odds ratio (OR): 0.42, 95% confidence interval (CI): 0.26-0.68, P < 0.001], cardiovascular death (OR: 0.50, 95% CI: 0.22-0.1.10, NS), and stroke (OR: 0.26, 95% CI: 0.13-0.49, P < 0.001) without significant difference for MI (OR: 0.79, 95% CI: 0.35-1.75, NS) independent of systolic blood pressure, LVM index, or treatment. CONCLUSION: In hypertensive patients with LVH, physically active patients had improved prognosis for cardiovascular endpoints, mortality, and stroke that was independent of LVM.
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5.
  • Chinali, Marcello, et al. (författare)
  • Left atrial systolic force in hypertensive patients with left ventricular hypertrophy : the LIFE study.
  • 2008
  • Ingår i: Journal of Hypertension. - 0263-6352. ; 26:7, s. 1472-6
  • Tidskriftsartikel (refereegranskat)abstract
    • In hypertensive patients without prevalent cardiovascular disease, enhanced left atrial systolic force is associated with left ventricular hypertrophy and increased preload. It also predicts cardiovascular events in a population with high prevalence of obesity. Relations between left atrial systolic force and left ventricular geometry and function have not been investigated in high-risk hypertrophic hypertensive patients. Participants in the Losartan Intervention For Endpoint reduction in hypertension echocardiography substudy without prevalent cardiovascular disease or atrial fibrillation (n = 567) underwent standard Doppler echocardiography. Left atrial systolic force was obtained from the mitral orifice area and Doppler mitral peak A velocity. Patients were divided into groups with normal or increased left atrial systolic force (>14.33 kdyn). Left atrial systolic force was high in 297 patients (52.3%), who were older and had higher body mass index and heart rate (all P < 0.01) but similar systolic and diastolic blood pressure, in comparison with patients with normal left atrial systolic force. After controlling for confounders, increased left atrial systolic force was associated with larger left ventricular diameter and higher left ventricular mass index (both P < 0.01). Prevalence of left ventricular hypertrophy was greater (84 vs. 64%; P < 0.001). Participants with increased left atrial systolic force exhibited normal ejection fraction; higher stroke volume, cardiac output, transmitral peak E velocities and peak A velocities; and lower E/A ratio (all P < 0.01). Enhanced left atrial systolic force identifies hypertensive patients with greater left ventricular mass and prevalence of left ventricular hypertrophy, but normal left ventricular chamber systolic function with increased transmitral flow gradient occurring during early filling, consistent with increased preload.
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6.
  • Chinali, Marcello, 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: American Journal of Cardiology. - 0002-9149. ; 104:8, s. 1098-1104
  • 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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7.
  • Cicala, Silvana, et al. (författare)
  • Are coronary revascularization and myocardial infarction a homogeneous combined endpoint in hypertension trials? The Losartan Intervention For Endpoint reduction in hypertension study
  • 2010
  • Ingår i: Journal of Hypertension. - 0263-6352. ; 28:6, s. 1134-1140
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Construction of prognostically relevant endpoints for clinical trials in hypertension has increasingly included coronary revascularization with myocardial infarction (MI) as manifestations of coronary artery disease. However, whether coronary revascularization and MI predict other cardiovascular events similarly is unknown.   Methods: We examined risks of cardiovascular death, all-cause death, and stroke following MI or coronary revascularization in hypertensive patients with left ventricular hypertrophy (LVH) enrolled in the Losartan Intervention For Endpoint reduction in hypertension study (LIFE). We studied 9113 patients after excluding those who died within 7 days after MI or underwent coronary revascularization within 24 h after MI.   Results: In multivariate Cox regression adjusting for participating countries, time-varying systolic blood pressure, and Framingham risk score, hazard ratios for cardiovascular death, all-cause death, and stroke were, respectively, 4.5 (P < 0.0001), 2.9 (P < 0.0001), and 1.9 (P = 0.003) in 321 patients with MI as first event. In similar models, coronary revascularization as first event (n = 202) was not associated with increased risks of cardiovascular death, all-cause death, and stroke (P = 0.06–0.86).   Conclusion: During follow-up of hypertensive patients with LVH, occurrence of MI but not coronary revascularization as first cardiovascular event significantly increased risk of subsequent cardiovascular death, all-cause death, and stroke. In view of differences in prognostic implications, when the goal is to have a prognostically relevant composite endpoint for trials in hypertensive patients, caution should be used in combining coronary revascularization with MI.
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8.
  • 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. ; 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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9.
  • Cicala, Silvana, et al. (författare)
  • Electrocardiographic and echocardiographic detection of myocardial infarction in patients with left-ventricular hypertrophy. The LIFE Study.
  • 2007
  • Ingår i: Am J Hypertens. - 0895-7061. ; 20:7, s. 771-6
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Left-ventricular hypertrophy (LVH) is a recognized risk factor for myocardial infarction (MI). However, detection of MI by standard electrocardiographic (ECG) criteria may be hampered in patients with LVH. In this setting of hypertensive LVH, the accuracy of two-dimensional (2D) echocardiography in detecting incident MI is unknown. Thus, we compared the accuracy of 2D echocardiography with Minnesota-code ECG criteria in detecting incident MI, adjudicated during serial evaluation in patients with hypertension and LVH. METHODS: In the ECG substudy of the Losartan Intervention for Endpoint Reduction in Hypertension (LIFE) Study, complete baseline wall-motion (WM) evaluation was obtained in 904 hypertensive patients with ECG LVH who did not have a left-bundle branch block. Electrocardiography and echocardiograms obtained at annual follow-up visits were evaluated for ECG Q-waves by Minnesota codes and WM abnormalities, respectively (mean follow-up, 4.8+/-0.9 SD years). Occurrence of incident clinical MI during follow-up was adjudicated by an expert end-point committee. RESULTS: In two logistic models adjusting for confounders, incident MI was independently associated with either incident Q-waves by the Minnesota code (odds ratio [OR], 6.1; 95% confidence interval [CI], 2.4-15.3) or incident and worsened WM abnormalities (OR, 11.9; 95% CI, 4.5-32.0), and the association was stronger for WM abnormalities than for Q-waves (P < .0001). Detection of incident MI by ECG or 2D echocardiography was obtained with sensitivities of 29% and 68% and specificities of 95% and 84%, respectively. CONCLUSIONS: Wall-motion abnormalities on serial 2D ECGs recognize incident MI better than do Minnesota-code ECG criteria during follow-up of patients with hypertension and LVH.
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10.
  • Cramariuc, Dana, et al. (författare)
  • Sex differences in cardiovascular outcome during progression of aortic valve stenosis
  • 2015
  • Ingår i: Heart. - 1355-6037. ; 101:3, s. 209-214
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Women with severe aortic valve stenosis (AS) have better LV systolic function and more concentric LV geometry than their male counterparts. However, sex differences in cardiovascular (CV) outcome during progression of AS have not been reported from a longitudinal prospective study.METHODS: Doppler echocardiography and CV events were recorded during a median of 4.0 years in 979 men and 632 women aged 28-86 (mean 67±10) years in the Simvastatin Ezetimibe in Aortic Stenosis (SEAS) study. LV systolic function was assessed by EF and midwall shortening (MWS). Study outcomes were AS-related events, ischaemic CV events and total mortality.RESULTS: The annular cumulative incidence of AS events, ischaemic CV events and death was 8.1%, 3.4% and 2.8% in women, and 8.9%, 4.4% and 2.4% in men, respectively. Women and men had similar AS progression rate whether measured by peak jet velocity, mean gradient or valve area. In multivariate analyses, female sex independently predicted less reduction in LV MWS and EF during follow-up (both p&lt;0.05). In time-varying Cox analyses, women had a 40% lower rate of ischaemic CV events (95% CI 21% to 54%), in particular, more than 50% lower rate of stroke and coronary artery bypass grafting, and a 31% lower all-cause mortality (95% CI 1% to 51%), independent of active study treatment, age and hypertension, as well as time-varying valve area, low systolic function and abnormal LV geometry. AS event rate did not differ by sex.CONCLUSIONS: In the SEAS study, women and men had similar rates of AS progression and AS-related events. However, women had lower total mortality and ischaemic CV event rate than men independent of confounders.TRIAL REGISTRATION NUMBER: ClinicalTrials.gov identifier: NCT00092677.
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