Third-time coronary artery bypass grafting: midterm results.
Minimal data are available regarding the results of patients who have undergone myocardial revascularization more than twice. The records of 13 consecutive patients who underwent a coronary artery bypass procedure for the third time were reviewed. The indication for operation was unstable angina in all patients. All patients were placed on cardiopulmonary bypass through a median sternotomy. The mean number of bypass grafts placed at the third operation was 1.9 (range, 1 to 3 grafts). A new internal mammary artery graft was placed in 6 patients (2 had prior internal mammary artery grafts). Hospital mortality was 7.7% (1/13). The single death was due to incomplete revascularization in a patient with poor distal vessels. Three patients required intraaortic balloon pump support postoperatively, and 2 patients had prolonged ventilatory insufficiency. There have been no late deaths. The 12 survivors have been followed up a mean of 44 months (range, 6 to 90 months). Four remain asymptomatic; 5 have mild angina easily controlled with medication. All except 1 are in improved condition compared with their preoperative status. We conclude that a third myocardial revascularization can be performed with low mortality and morbidity and with the expectation of long-lasting symptomatic improvement.
Merrill
W H
WH
Department of Cardiac and Thoracic Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee.
Elkins
C C
CC
Stewart
J R
JR
Frist
W H
WH
Bender
H W
HW
D000368:Aged; D000369:Aged, 80 and over; D000789:Angina, Unstable / Q000601:surgery; D001026:Coronary Artery Bypass / Q000401:mortality; D005260:Female; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D012086:Reoperation