title: Change of luminal diameter of skeletonized and non-skeletonized radial artery graft at early and late postoperative period.
abstract: The radial artery is increasingly used as a second arterial conduit for myocardial revascularization. However, the radial artery is susceptible to vasospasm, which is thought to be the principal cause of graft failure. The radial artery is harvested as a skeletonized or a non-skeletonized graft, but the effect of different harvesting technique remains unknown. In this study, we compared the early- and mid-term angiographic findings to elucidate its influence on the graft luminal diameter. We harvested 39 radial arteries either as a skeletonized (n = 18) or a non-skeletonized graft (n = 21) using an ultrasonic scalpel. We constructed a composite straight graft by combining a right internal thoracic artery and a radial artery. All the radial artery grafts were sequentially anastomosed to coronary arteries. We measured the diameters of the radial arteries before the operation, within 1 month and 1 year after the operation. At early postoperative period, graft diameter was significantly larger in skeletonized grafts. Graft diameter at the point before the first and the second anastomosis was similar in skeletonized grafts, although that was significantly smaller before the second anastomosis in non-skeletonized grafts. However, 1 year after the operation, the graft diameter was comparable and equally reduced after the first anastomosis in both groups. Skeletonization with an ultrasonic scalpel increases the luminal diameter of the radial artery graft at early postoperative period, which, however, reduces possibly as adaptation to graft flow 1 year after the operation.
authors: Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8670, Japan.
authors: Takuto
authors: T
authors: Maruyama
authors: Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8670, Japan.
authors: Hiroki
authors: H
authors: Kohno
authors: Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8670, Japan.
authors: Keiichi
authors: K
authors: Ishida
authors: Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8670, Japan.
authors: Toru
authors: T
authors: Ishizaka
authors: Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan.
authors: Nobusada
authors: N
authors: Funabashi
authors: Department of Cardiovascular Science and Medicine, Chiba University Graduate School of Medicine, Chiba, Japan.
authors: Yoshio
authors: Y
authors: Kobayashi
authors: Department of Cardiovascular Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, Chiba, 260-8670, Japan. matsumg@faculty.chiba-u.jp.
authors: Goro
authors: G
authors: Matsumiya
mesh_terms: D000368:Aged; D000072226:Computed Tomography Angiography; D017023:Coronary Angiography; D001026:Coronary Artery Bypass / Q000379:methods*; D003324:Coronary Artery Disease / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D003331:Coronary Vessels / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008323:Mammary Arteries / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000637:transplantation*; D061330:Multidetector Computed Tomography; D017534:Radial Artery / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000637:transplantation*; D012189:Retrospective Studies; D013997:Time Factors; D020858:Tissue and Organ Harvesting; D014654:Vascular Patency / Q000502:physiology*; D014661:Vasoconstriction / Q000502:physiology
keywords: CABG; Luminal diameter; Radial artery; Skeletonization; Ultrasonic scalpel
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