Left axis deviation did not significantly predict all-cause mortality compared to normal axis in patients with acute heart failure syndrome and left bundle branch block (adjusted HR 1.01).
Cohort (n=292)
Yes
Does left axis deviation predict all-cause mortality in acute heart failure patients with left bundle branch block?
In patients with acute heart failure and LBBB, left axis deviation does not predict all-cause mortality but is associated with worse left ventricular ejection fraction and right ventricular dilatation.
Hazard Ratio: 1.01 (95% CI 0.66–1.53)
Absolute Event Rate: 46.6% vs 39.7%
p-value: p=0.97
Background and Objectives: The prognostic impact of left axis deviation (LAD) on clinical outcomes in acute heart failure syndrome (AHFS) with left bundle branch block (LBBB) is unknown. The aim of this study was to determine the prognostic significance of axis deviation in acute heart failure patients with LBBB. Methods: Between March 2011 and February 2014, 292 consecutive AHFS patients with LBBB were recruited from 10 tertiary university hospitals. They were divided into groups with no LAD (n=189) or with LAD (n=103) groups according to QRS axis <-30 degree. The primary outcome was all-cause mortality.
Choi et al. (Mon,) conducted a cohort in Acute heart failure syndrome with left bundle branch block (n=292). Left axis deviation (LAD) vs. No left axis deviation (normal axis) was evaluated on All-cause mortality (adjusted HR 1.01, 95% CI 0.66, 1.53, p=0.97). Left axis deviation did not significantly predict all-cause mortality compared to normal axis in patients with acute heart failure syndrome and left bundle branch block (adjusted HR 1.01).
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