title: Prevalence of QRS prolongation in a community hospital cohort of patients with heart failure and its relation to left ventricular systolic dysfunction.
abstract: Adverse outcomes in heart failure occur more frequently with QRS prolongation. The results of our study have shown that 1/4 of community hospital patients with heart failure of sufficient severity leading to hospitalization have a QRS duration of > or =120 ms and that this degree of QRS prolongation is associated with substantially more severe left ventricular (LV) systolic dysfunction, LV dilation, and mitral regurgitation.
authors.affiliation: Heart and Vascular Research Center, MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio 44109, USA.
authors.forename: Roopinder
authors.initials: R
authors.lastname: Sandhu
authors.forename: Robert C
authors.initials: RC
authors.lastname: Bahler
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D015331:Cohort Studies; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006333:Heart Failure / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000150:complications; D015995:Prevalence; D012189:Retrospective Studies; D013599:Systole / Q000502:physiology; D013997:Time Factors; D018487:Ventricular Dysfunction, Left / Q000150:complications* / Q000453:epidemiology / Q000503:physiopathology