Predictors of therapeutic response to beta-blockers in patients with heart failure in Taiwan.

BACKGROUND/PURPOSE: Chinese are more sensitive to beta-blockers than Caucasians. However, data regarding beta-blocker therapy in heart failure (HF) patients in Taiwan are lacking. We aimed to evaluate the improvement of left ventricular function and the potential predictors of response to beta-blocker therapy in Taiwanese HF patients. METHODS: We enrolled 34 HF patients with baseline left ventricular ejection fraction (LVEF)