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Sökning: WFRF:(Greve Anders M.) > (2014)

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1.
  • Greve, Anders M., et al. (författare)
  • Usefulness of the electrocardiogram in predicting cardiovascular mortality in asymptomatic adults with aortic stenosis (from the Simvastatin and Ezetimibe in Aortic Stenosis study)
  • 2014
  • Ingår i: American Journal of Cardiology. - Elsevier. - 0002-9149. ; 114:5, s. 751-756
  • Tidskriftsartikel (refereegranskat)abstract
    • Hypertension and coronary heart disease are common in aortic stenosis (AS) and may impair prognosis for similar AS severity. Different changes in the electrocardiogram may be reflective of the separate impacts of AS, hypertension, and coronary heart disease, which could lead to enhanced risk stratification in AS. The aim of this study was therefore to examine if combining prognostically relevant electrocardiographic (ECG) findings improves prediction of cardiovascular mortality in asymptomatic AS. All patients with baseline electrocardiograms in the SEAS study were included. The primary end point was cardiovascular death. Backward elimination (p > 0.01) identified heart rate, Q waves, and Cornell voltage-duration product as independently associated with cardiovascular death. Multivariate logistic and Cox regression models were used to evaluate if these 3 ECG variables improved prediction of cardiovascular death. In 1,473 patients followed for a mean of 4.3 years (6,362 patient-years of follow-up), 70 cardiovascular deaths (5%) occurred. In multivariate analysis, heart rate (hazard ratio [FIR] 1.5 per 11.2 minute(-1) [1 SD], 95% confidence interval [CI] 1.2 to 1.8), sum of Q-wave amplitude (HR 1.3 per 2.0 nun [1 SD], 95% CI 1.1 to 1.6), and Cornell voltage-duration product (FIR 1.4 per 763 mm x ms [1 SD], 95% CI 1.2 to 1.7) remained independently associated with cardiovascular death. Combining the prognostic information contained in each of the 3 ECG variables improved integrated discrimination for prediction of cardiovascular death by 2.5%, net reclassification by 14.3%, and area under the curve by 0.06 (all p <= 0.04) beyond other important risk factors. ECG findings add incremental predictive information for cardiovascular mortality in asymptomatic patients with AS.
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2.
  • Bang, Casper N., et al. (författare)
  • Renin-angiotensin system inhibition is not associated with increased sudden cardiac death, cardiovascular mortality or all-cause mortality in patients with aortic stenosis
  • 2014
  • Ingår i: International Journal of Cardiology. - 0167-5273. ; 175:3, s. 492-498
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Renin-angiotensin system inhibition (RASI) is frequently avoided in aortic stenosis (AS) patients because of fear of hypotension. We evaluated if RASI with angiotensin-converting enzyme inhibitor (ACEI) or angiotensin receptor blocker (ARB) increased mortality in patients with mild to moderate AS. Methods: All patients (n = 1873) from the Simvastatin and Ezetimibe in Aortic Stenosis study: asymptomatic patients with AS and preserved left ventricular (LV) ejection fraction were included. Risks of sudden cardiac death (SCD), cardiovascular death and all-cause mortality according to RASI treatment were analyzed by multivariable time-varying Cox models and propensity score matched analyses. Results: 769 (41%) patients received RASI. During a median follow-up of 4.3 +/- 0.9 years, 678 patients were categorized as having severe AS, 545 underwent aortic valve replacement, 40 SCDs, 103 cardiovascular and 205 all-cause deaths occurred. RASI was not associated with SCD (HR: 1.19 [95% CI: 0.50-2.83], p = 0.694), cardiovascular (HR: 1.05 [95% CI: 0.62-1.77], p = 0.854) or all-cause mortality (HR: 0.81 [95% CI: 0.55-1.20], p = 0.281). This was confirmed in propensity matched analysis (all p > 0.05). In separate analyses, RASI was associated with larger reduction in systolic blood pressure (p = 0.001) and less progression of LV mass (p = 0.040). Conclusions: RASI was not associated with SCD, cardiovascular or all-cause mortality in asymptomatic AS patients. However, RASI was associated with a potentially beneficial decrease in blood pressure and reduced LV mass progression. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
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3.
  • Greve, Anders M., et al. (författare)
  • Stroke in Patients With Aortic Stenosis The Simvastatin and Ezetimibe in Aortic Stenosis Study
  • 2014
  • Ingår i: Stroke. - American Heart Association. - 0039-2499. ; 45:7, s. 1939-1946
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Purpose-There are limited data on risk stratification of stroke in aortic stenosis. This study examined predictors of stroke in aortic stenosis, the prognostic implications of stroke, and how aortic valve replacement (AVR) with or without concomitant coronary artery bypass grafting influenced the predicted outcomes. Methods-Patients with mild-to-moderate aortic stenosis enrolled in the Simvastatin and Ezetimibe in Aortic Stenosis (SEAS) study. Diabetes mellitus, known atherosclerotic disease, and oral anticoagulation were exclusion criteria. Ischemic stroke was the primary end point, and poststroke survival a secondary outcome. Cox models treating AVR as a time-varying covariate were adjusted for atrial fibrillation and congestive heart failure, hypertension, age >= 75 years, diabetes mellitus, stroke/transient ischemic attack, vascular disease, age 65-74 years and female sex (CHA(2)DS(2)-VASc) scores. Results-One thousand five hundred nine patients were followed for 4.3 +/- 0.8 years (6529 patient-years). Rates of stroke were 5.6 versus 21.8 per 1000 patient-years pre- and post-AVR; 429 (28%) underwent AVR and 139 (9%) died. Atrial fibrillation (hazard ratio [HR], 2.7; 95% confidence interval [CI], 1.1-6.6), CHA(2)DS(2)-VASc score (HR 1.4 per unit; 95% CI, 1.1-1.8), diastolic blood pressure (HR, 1.4 per 10 mm Hg; 95% CI, 1.1-1.8), and AVR with concomitant coronary artery bypass grafting (HR, 3.2; 95% CI, 1.4-7.2, all P <= 0.026) were independently associated with stroke. Incident stroke predicted death (HR, 8.1; 95% CI, 4.7-14.0; P<0.001). Conclusions-In patients with aortic stenosis not prescribed oral anticoagulation, atrial fibrillation, AVR with concomitant coronary artery bypass grafting, and CHA(2)DS(2)-VASc score were the major predictors of stroke. Incident stroke was strongly associated with mortality.
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