The Association Between Baseline Left Atrial Volume Index and All-Cause Mortality in Patients with Heart Failure: A Meta-Analysis

Bhavadharini Ramu, Ahmed M. Elwan, Craig I. Coleman, David I. Silverman, Jason A. Gluck

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

BACKGROUND: Enlargement of the left atrium is a marker of mortality in the general population. Left atrial volume index (LAVI) has long been proposed as a measure of prognosis in patients with heart failure (HF). The aim of this meta-analysis was to assess the utility of using baseline LAVI as an independent predictor of all-cause mortality in patients with HF.

METHODS: A search of Medline and Embase bibliographic databases was performed to identify studies meeting the following inclusion criteria: 1) studies evaluating a cohort of patients with HF (both reduced and preserved ejection fraction); 2) studies conducting multivariate analysis or patient matching to determine the relationship between baseline LAVI measured by echocardiography and all-cause mortality; and 3) studies reporting data on the relationship between baseline LAVI (per difference in mL/m2) and all-cause mortality. Adjusted hazard ratios depicting the association between baseline LAVI and all-cause mortality were pooled using traditional random-effects meta-analysis.

RESULTS: 1,188 publications were reviewed from which four studies were included in the present meta-analysis. We found each 10 mL/m2 increase in baseline LAVI was associated with a 22% increased adjusted hazard of all-cause mortality (95% confidence interval, 13% to 31%, I2 = 14%).

CONCLUSION: Baseline LAVI is an important independent predictor of all-cause mortality in patients with heart failure and should be reported routinely in these patients undergoing echocardiography.

Original languageEnglish (US)
Pages (from-to)469-475
Number of pages7
JournalConnecticut medicine
Volume79
Issue number8
StatePublished - Sep 1 2015

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