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Ann Thorac Surg 2001;71:1224-1228
© 2001 The Society of Thoracic Surgeons

Original article: cardiovascular

Early results of coronary grafting using ultrasonically skeletonized internal thoracic arteries

Tetsuya Higami, MDa, Teruo Yamashita, MDa, Hideaki Nohara, MDa, Kazuhiko Iwahashi, MDa, Tsutomu Shida, MDa, Kyoichi Ogawa, MDa

a Division of Cardiovascular Surgery, Hyogo Brain and Heart Center, Himeji, Japan

Accepted for publication November 28, 2000.

Address reprint requests to Dr Higami, Division of Cardiovascular Surgery, Hyogo Brain and Heart Center, 520 Saisho-ko, Himeji 670-0981, Japan
e-mail: thigami{at}kba.att.ne.jp

Background. We have developed an ultrasonic complete skeletonization technique for obtaining internal thoracic artery (ITA) grafts and have used this method clinically since January 1998. In this report, we discuss the early results of bilateral ITA grafts obtained with our method.

Methods. We studied 200 consecutive patients who underwent coronary artery bypass grafting using ITAs obtained by this technique. Angiography of the grafts was performed in 188 patients (94%) within 1 month after coronary artery bypass grafting.

Results. The ITA grafts were about 4 cm longer than pedicled ITA grafts. The free flow through the grafts was at least 30% higher than through pedicled ITAs. The early patency rate determined by postoperative angiography of the grafts was 99.7% for left ITAs and 100% for right ITAs. No patient required postoperative intervention or repeated surgery.

Conclusions. Ultrasonic complete skeletonization increases the effective length of ITA bypasses, improves free flow through the bypasses, and it is less invasive than conventional pedicled harvesting. These excellent early results indicate that this technique is a straightforward, safe, less invasive, and optimal method for obtaining ITA bypass grafts.




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