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J Thorac Cardiovasc Surg 1996;112:1223-1230
© 1996 Mosby, Inc.

SURGERY FOR ACQUIRED HEART DISEASE

CORONARY-CORONARY BYPASS GRAFT: AN ARTERIAL CONDUIT–SPARING PROCEDURE

From the Centre Chirurgical Marie Lannelongue, Le Plessis- Robinson, France.

Received for publication May 6, 1996 Revisions requested May 30, 1996; revisions received June 24, 1996 Accepted for publication July 10, 1996. Address for reprints: R. Nottin, MD, Centre Chirurgical Marie Lannelongue, 133, Ave. de la Résistance, 92350 Le Plessis- Robinson, France.

Abstract

From May 1989 to December 1995, 143 patients underwent myocardial revascularization with one (138 patients) or two (five patients) coronary-coronary bypass grafts in addition to other bypass grafts, for a total of 463 distal anastomoses (mean 3.2 ± 0.6 per patient). Coronary-coronary bypass grafts were chosen for the following reasons: arterial conduit–sparing procedure, inadequate length for in situ graft, calcified ascending aorta, and stenosed or occluded subclavian arteries. One hundred eleven arterial grafts (75%) were used: 85 right internal thoracic arteries, 18 left internal thoracic arteries, and eight radial arteries. Saphenous vein grafts were used in 37 cases (25%, mostly in our early experience). Coronary-coronary bypass grafts were performed on the right coronary artery in 134 cases (90.5%), on the circumflex artery in five cases (3.3%), on the left anterior descending coronary artery in four cases (2.7%), and between two different coronary arteries in five cases (3.3%). Three patients (2%) died of myocardial infarction. Early postoperative angiography showed a patency rate of 98.6% (72/73). During the mean follow-up of 34.6 ± 20.8 months, two patients died and two underwent reoperation. Results of exercise testing were normal at 2 months in 97% of patients (90/92), at 1 year in 96% (81/84), and at 3 years in 93% (30/32). In conclusion, the coronary-coronary bypass graft provides good results with a variety of conduits and allows the expanded use of arterial grafts, particularly the internal thoracic artery. This can lead to a sparing of arterial conduit and allow complex myocardial revascularization with a liberal use of internal thoracic arteries. (J THORACCARDIOVASCSURG1996;112:1223-30)

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