Premium
The Prognostic Significance of Bundle Branch Block in High‐Risk Chronic Stable Vascular Disease Patients: A Report from the HOPE Trial
Author(s) -
SUMNER GLEN,
SALEHIAN OMID,
YI QILONG,
HEALEY JEFF,
MATHEW JAMES,
ALMERRI KHALID,
ALNEMER KHALED,
MANN J.F.E.,
DAGENAIS GILLES,
LONN EVA
Publication year - 2009
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.2009.01440.x
Subject(s) - medicine , heart failure , cardiology , hazard ratio , myocardial infarction , sudden death , left bundle branch block , stroke (engine) , sudden cardiac death , ramipril , cause of death , disease , confidence interval , blood pressure , mechanical engineering , engineering
Objective: The prognostic significance of left and right bundle branch block (LBBB and RRBB) in patients with chronic stable cardiovascular (CV) disease is not well characterized and was evaluated in the Heart Outcomes Prevention Evaluation (HOPE) study cohort. Design: Observational analysis of data prospectively collected in the HOPE trial. Setting and Patients: HOPE was a multicenter, international trial, which evaluated ramipril and vitamin E in 9,541 patients aged ≥55 years with CV disease or diabetes with ≥1 CV risk factor(s) but without heart failure (HF) or known left ventricular systolic dysfunction. Follow‐up extended for a median of 4.5 years. Electrocardiograms were obtained at baseline in all study participants and were read centrally. Main Outcome Measures: Major CV events (defined as CV death, myocardial infarction, or stroke), heart failure, CV death, all‐cause death, and sudden death. Results: Baseline LBBB was present in 246 (2.6%) patients and was associated with increased risk for major CV events (HR = 1.54; 95% CI, 1.18–2.02), CV death (HR 2.29; 95% CI, 1.63–3.20), heart failure (HR 2.99; 95% CI, 2.31–3.87), sudden death (HR 3.17; 95% CI, 2.13–4.73), and all‐cause death (HR = 2.10; 95% CI, 1.59–2.77). In multivariate models, LBBB remained an independent predictor of heart failure, sudden death, CV death, and all‐cause death (P ≤ 0.002 for all). Baseline RBBB was present in 428 (4.5%) of patients and was not associated with increased CV risk. Conclusions: In patients with stable chronic CV disease, LBBB but not RBBB is an independent predictor of heart failure, sudden death, CV death, and all‐cause death.