Time intervals of cardiac resynchronization therapy in heart failure.
Systolic and diastolic time intervals were measured in 11 patients with heart failure before and 1 and 3 months after the placement of atrial biventricular pacemakers for cardiac resynchronization therapy (CRT). CRT shortened the preejection period, principally by reducing left ventricular (LV) electromechanical delay with lesser reduction of isovolumic contraction time, and shortened the duration of LV systole, with a consequent trend of lengthening diastolic time.
Baker
Cindy
C
Division of Cardiology, The Ohio State University College of Medicine, Columbus, Ohio 43210, USA.
Love
Charles J
CJ
Moeschberger
Melvin L
ML
Orsinelli
David A
DA
Yamokoski
Laura
L
Leier
Carl V
CV
D000368:Aged; D002037:Bundle-Branch Block / Q000209:etiology; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006329:Heart Conduction System / Q000503:physiopathology / Q000601:surgery; D006333:Heart Failure / Q000503:physiopathology / Q000628:therapy*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D010138:Pacemaker, Artificial; D011183:Postoperative Complications / Q000209:etiology; D013318:Stroke Volume / Q000502:physiology; D013997:Time Factors; D016896:Treatment Outcome; D018487:Ventricular Dysfunction, Left / Q000503:physiopathology / Q000628:therapy