The Annals of Thoracic Surgery, Vol 58, 1297-1303, Copyright © 1994 by The Society of Thoracic Surgeons
Clinical experience with the implantable cardioverter defibrillator
JM Williams, DT Rock, SJ Pabst, CR Grill, HJ DeAntonio, R Mahmud and WR Chitwood Jr
Division of Cardiothoracic Surgery, East Carolina University School of Medicine, Greenville, North Carolina 27858.
The implantable cardioverter defibrillator has played an increasingly
greater role in the management of episodes of sudden cardiac-related death
related to ventricular tachycardia or ventricular fibrillation. This study
reviews the cases of 142 patients who underwent insertion of an implantable
cardioverter defibrillator, 104 who received a device alone (group I) and
38 who underwent insertion of the device in combination with other cardiac
surgical procedures (group II). The overall operative mortality was 3.5%
and this did not differ between the two groups. The complication rate was
higher for group II than for group I patients, and consisted primarily of
an increased incidence of atrial arrhythmias (53% versus 13%; p <
0.001). Late complications included three device infections requiring
removal of the defibrillator. The late mortality did not differ between the
two groups and was primarily related to congestive heart failure. Sudden
cardiac- related death was an uncommon late event, with an actuarial
freedom from sudden cardiac-related death of 98%, 97%, and 87% at 1, 2, and
5 years, respectively. The morbidity and mortality rate are low in
association with the insertion of an implantable cardioverter
defibrillator, even when this is combined with other cardiac surgical
procedures. Its insertion is also associated with a low subsequent rate of
sudden cardiac-related death.