Four patients with previously placed implantable defibrillators requir
e coronary revascularization several years after the original device w
as inserted, Three patients had a conventional system of epicardial pa
tches and leads, and one patient had a nonthoracotomy system placed. A
ll four patients were successfully revascularized without evidence of
perioperative infarction or significant morbidity. The patient with th
e nonthoracotomy device did require manipulation of the endocardial le
ad at a separate setting. This limited experience suggests that patien
ts needing revascularization after placement of an implantable defibri
llator can be successfully bypassed.