MedPage Today -- ORLANDO, April 1 -- Electrically stimulating the heart to beat more forcefully appears to be safe and may benefit some heart failure patients, a researcher said here. But the method, cardiac contractility modulation, failed to improve exercise performance as measured by anaerobic threshold -- the primary endpoint -- over optimal medical therapy alone in patients with class III and IV heart failure (P=0.314), William Abraham, M.D., of Ohio State University in Columbus, reported at the American College of Cardiology meeting.
