Abstract
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.
Publication types
-
Comparative Study
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Aged
-
Bundle-Branch Block / etiology
-
Cardiac Pacing, Artificial
-
Electrocardiography
-
Female
-
Follow-Up Studies
-
Heart Conduction System / physiopathology
-
Heart Conduction System / surgery
-
Heart Failure / physiopathology
-
Heart Failure / therapy*
-
Heart Rate / physiology
-
Humans
-
Male
-
Middle Aged
-
Myocardial Contraction / physiology
-
Pacemaker, Artificial*
-
Postoperative Complications / etiology
-
Stroke Volume / physiology
-
Time Factors
-
Treatment Outcome
-
Ventricular Dysfunction, Left / physiopathology
-
Ventricular Dysfunction, Left / therapy