PT - JOURNAL ARTICLE AU - Rizzo, Toni ED - Holzmeister, Johannes TI - No Improvement with CRT in Patients with HF and QRS DP - 2013 Nov 01 TA - MD Conference Express PG - 23--24 VI - 13 IP - 15 4099 - http://mdc.sagepub.com/content/13/15/23.short 4100 - http://mdc.sagepub.com/content/13/15/23.full AB - Although cardiac resynchronization therapy (CRT) is not currently recommended for heart failure (HF) patients with a QRS complex <120 msec, many such patients have evidence of mechanical dyssynchrony by echocardiography. The Echocardiography Guided Cardiac Resynchronization Therapy study [EchoCRT; Ruschitzka F et al. N Engl J Med 2013] was a prospective, multicenter, randomized, clinical trial designed to evaluate the effect of CRT on morbidity and mortality in patients with symptomatic HF, a QRS complex <130 msec, and evidence of mechanical dyssynchrony.