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Ann Thorac Surg 2002;74:700-703
© 2002 The Society of Thoracic Surgeons

Original article: cardiovascular

Coronary artery bypass surgery by the transdiaphragmatic approach1

Kenji Takahashi, MD*a, Masahito Minakawa, MDa, Norihiro Kondo, MDa, Shigeru Oikawa, MDa, Masaharu Hatakeyama, MDa

a Department of Cardiovascular Surgery, Aomori Rousai Hospital, Hachinohe, Japan

Accepted for publication May 9, 2002.

* Address reprint requests to Dr Takahashi, Department of Cardiovascular Surgery, Aomori Rousai Hospital, 1 Minamigaoka, Shirogane, Hachinohe, Aomori, 031-0822, Japan
e-mail: takaken{at}aomorih.rofuku.go.jp

Background. The transdiaphragmatic approach is useful for reoperative coronary artery bypass grafting involving the right coronary artery because it does not require median sternotomy or cardiopulmonary bypass.

Methods. Twenty-one patients underwent coronary artery bypass surgery by the transdiaphragmatic approach. The ratio of first operations to reoperations was 7:14. The cause of reoperation was occlusion of a saphenous vein graft in 4 patients, right gastroepiploic artery graft failure in 3 patients, and a new sclerotic lesion in the right coronary artery in 7 patients. When the radial artery or saphenous vein was used, grafting extended from the origin of the gastroduodenal artery to the right coronary artery.

Results. None of the patients died during surgery. The sites of anastomoses were as follows: right coronary artery in 11 patients, right posterior descending artery in 9 patients, and the atrioventricular node artery in 1 patient. The following types of grafts were used: right gastroepiploic artery in 17 patients, saphenous vein in 2 patients, and radial artery in 2 patients.

Conclusions. When reoperative coronary surgery involving the right coronary artery is necessary, the transdiaphragmatic technique is effective because it does not damage patent grafts placed during the primary operation.




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