Prognostic implications of increased QRS duration in patients with moderate and severe left ventricular systolic dysfunction.
Survival analysis was performed on a cohort of 2,265 patients with left ventricular ejection fraction of </= 40% to investigate the effect of increased QRS duration on all-cause mortality. Presence of QRS prolongation independently predicted higher mortality in patients with left ventricular systolic dysfunction. This finding may have important prognostic and therapeutic implications in this patient population.
Silvet
H
H
Section of Cardiology, Loma Linda VA Medical Center, Loma Linda, California, USA.
Amin
J
J
Padmanabhan
S
S
Pai
R G
RG
D000368:Aged; D016022:Case-Control Studies; D015331:Cohort Studies; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D011379:Prognosis; D012189:Retrospective Studies; D016019:Survival Analysis; D015996:Survival Rate; D013599:Systole / Q000502:physiology; D014463:Ultrasonography; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging / Q000401:mortality* / Q000503:physiopathology