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Ann Thorac Surg 2004;78:1610-1613
© 2004 The Society of Thoracic Surgeons

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Original article: cardiovascular

Surgical Reconstruction of the Left Main Coronary Artery: Fresh Autologous Pericardium or Saphenous Vein Patch

^a Department of Cardiothoracic Surgery, Tel Aviv, Israel
^b Department of Cardiology, Rabin Medical Center, Beilinson Campus, Petah Tiqwa, affiliated with Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel

Accepted for publication May 4, 2004.

^* Address reprint requests to Dr Raanani, MD, Department of Cardiac Surgery, Sheba Medical Center, Tel-Hashomer, Israel 52621
ehud.raanani{at}sheba.health.gov.il

BACKGROUND: Isolated stenosis of the left main coronary artery is usually treated by coronary bypass surgery. However, this approach restores a less physiologic perfusion of the myocardium that leads to occlusion of the left main coronary artery, and restores only a retrograde perfusion of a rather extensive myocardial area. Coronary ostial plasty has been described as an alternative surgical technique in isolated ostial left main coronary artery stenosis without calcification. We review our experience with 15 patients.

METHODS: After placing the patient on cardiopulmonary bypass and aortic cross clamping, the main pulmonary trunk was retracted laterally. The left main coronary artery was approached anteriorly through a curved aortotomy. Reconstruction was performed using fresh pericardial patch or saphenous vein that was tailored as a patch.

RESULTS: There were no early mortality or perioperative myocardial infarctions. During mean follow-up of 55 ± 39 months, no patients had any cardiac events or required repeated coronary intervention. All patients underwent follow-up transesophageal echocardiography, which demonstrated a wide open left main coronary artery (range 3 to 8 mm), normal flow pattern by pulsed-wave Doppler, and no aneurysmal dilatation or calcification of the onlay patch. Coronary angiography and intravascular ultrasound were performed in 2 patients because of nonspecific chest discomfort. In both cases, the left main coronary artery was found to be wide open, and there were no signs of patch calcification.

CONCLUSIONS: Surgical reconstruction of the left main coronary artery is safe and effective for the treatment of selected cases of isolated left main stenosis. The use of autologous pericardium appears to be as safe as saphenous vein patch. Neither method was associated with postoperative aneurysmal dilatation or calcification.

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