Biventricular pacing with coronary bypass and Dor's ventriculoplasty.
We applied biventricular pacing to a patient with severe ischemic dilated cardiomyopathy (left ventricular [LV] ejection fraction 19%, LV end-diastolic volume 360 mL, and complete left bundle branch block). An epicardial LV lead was surgically implanted concomitant with on-pump beating coronary artery bypass grafting and Dor's endoventricular circular patch plasty. Biventricular pacing immediately achieved the resynchronization of the LV contraction, and improved cardiac function as well as reducing mitral regurgitation. Biventricular pacing combined with cardiac surgery for patients with cardiomyopathy and complete left bundle branch block may produce beneficial effects on LV function.
Mizuno
Tomohiro
T
Department of Thoracic and Cardiovascular Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
Tanaka
Hiroyuki
H
Makita
Satoru
S
Tabuchi
Noriyuki
N
Arai
Hirokuni
H
Sunamori
Makoto
M
D000368:Aged; D000787:Angina Pectoris / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation; D002037:Bundle-Branch Block / Q000601:surgery*; D002311:Cardiomyopathy, Dilated / Q000601:surgery*; D003131:Combined Modality Therapy; D001026:Coronary Artery Bypass; D004567:Electrodes, Implanted; D006352:Heart Ventricles / Q000601:surgery*; D006801:Humans; D008297:Male; D009200:Myocardial Contraction / Q000502:physiology; D009203:Myocardial Infarction / Q000601:surgery*; D010138:Pacemaker, Artificial; D011183:Postoperative Complications / Q000503:physiopathology; D011474:Prosthesis Design; D018487:Ventricular Dysfunction, Left / Q000601:surgery*; D016277:Ventricular Function, Left / Q000502:physiology