Beneficial Effects of Preoperative Coronary Angiography and Coronary Artery Revascularization in Patients Undergoing Surgery for Abdominal Aortic Aneurysm

(Department of Cardiovascular Surgery, Osaka National Hospital, Osaka, Japan)

Yasuyuki Sasaki Fumitaka Isobe Seiji Kinugasa
Yoshiei Shimamura Hiroshi Kumano Keima Nagamachi
Yasuyuki Kato Hideki Arimoto
It is well known that patients with abdominal aortic aneurysms (AAA) have a high incidence of coronary artery disease (CAD), and that the major cause of death in patients undergoing aneurysmectomy is acute myocardial infarction. A total of 53 patients (mean age, 71 years) underwent elective repair of AAA between January 1991 and November 1999. In an attempt to reduce early and late mortality caused by myocardial infarction, coronary angiography (CAG) was performed in all cases. Significant CAD was found in 23 patients (43%), with triple vessel disease in 1 patient (2%), double vessel disease in 5 patients (9%), single vessel disease in 16 patients (30%) and left main in 1 patient (2%). Ten patients (19%) in whom CAD was detected by CAG had no history of CAD and displayed no ischemic findings on ECG. In 4 patients (8%), AAA repair was performed 2 (mean) months after coronary artery bypass grafting (CABG). Percutaneous transluminal coronary angioplasty (PTCA) was performed in 8 patients (23%) 19 days (mean) prior to AAA surgery. No patient had a perioperative myocardial infarction either following coronary revascularization (CABG and PTCA) or AAA resection. Moreover, there was only one operative death after abdominal aneurysmectomy (2%), in a patient who was 70 years old with chronic hemodialysis and who died due to multiple organ failure caused by uncontrollable adhesional ileus. The results of this study emphasize the importance of preoperative routine coronary angiography following coronary artery revascularization to enhance the operative outcome of AAA repair.
@Jpn. J. Cardiovasc. Surg. 30: 63-67 (2001)