Prolonged QRS duration (QRS ≥170 ms) and left axis deviation in the presence of left bundle branch block: A marker of poor left ventricular systolic function?
Mithilesh K. Das, Kuruvilla M. Cheriparambil, Ashwini Bedi, John Kassotis, Eng Sci D, C.V.R. Reddy, Majesh Makan, Christopher Dunbar, Barry I. Saul
Abstract