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Long-term prognostic significance of left atrial volume in acute myocardial infarction

Roy Beinart, MD^*, Valentina Boyko, MSc, Ehud Schwammenthal, MD^*, Rafael Kuperstein, MD^*, Alex Sagie, MD, Hanoch Hod, MD, FACC^*, Shlomo Matetzky, MD^*, Solomon Behar, MD, Michael Eldar, MD, FACC^* and Micha S. Feinberg, MD, FACC^*,*

^* Heart Institute, Chaim Sheba Medical Center, Tel Hashomer, Israel
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer, Israel
Cardiology Department, Rabin Medical Center, Petach Tiqvah, Israel

View larger version (14K): [in a new window]   Figure 1 Independent five-year mortality risk predictors of all patients; hazard ratio (95% confidence interval [CI]). LV = left ventricular; LAVI = left atrial volume index.

View larger version (12K): [in a new window]   Figure 2 Independent five-year mortality risk predictors of patients with first myocardial infarction only; hazard ratio (95% confidence interval [CI]). LAVI = left atrial volume index; LVEF = left ventricular ejection fraction.

View larger version (14K): [in a new window]   Figure 3 Kaplan-Meier survival curves of patients with left atrial (LA) volume index 32 ml/m2 and for patients with LA volume index >32 ml/m2. The log-rank test was used to compare survival curves. p = 0.0001.

View larger version (14K): [in a new window]   Figure 4 Adjusted survival curves of patients with left atrial (LA) volume index 32 ml/m2 and with LA volume index >32 ml/m2 were constructed using variables entered into the Cox model: age, gender, Killip class 2, primary reperfusion, diabetes, systemic hypertension, paroxysmal atrial fibrillation, previous myocardial infarction, left ventricular ejection fraction, moderate and severe mitral regurgitation, and restrictive left ventricular filling pattern. p = 0.02.