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Analysis of Postoperative Coronary Angiography in Symptomatic Patients  

Kim Young-Hak (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital, College of Medicine, Hanyang University)
Han San-Woong (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital, College of Medicine, Hanyang University)
Kang Jeong-Ho (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital, College of Medicine, Hanyang University)
Kim Hyuck (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital, College of Medicine, Hanyang University)
Lee Chul-Burm (Department of Thoracic and Cardiovascular Surgery, Hanyang University Guri Hospital, College of Medicine, Hanyang University)
Chon Soon-Ho (Department of Thoracic and Cardiovascular Surgery, Hanyang University Guri Hospital, College of Medicine, Hanyang University)
Nam Seung-Hyuk (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital, College of Medicine, Hanyang University)
Chung Won-Sang (Department of Thoracic and Cardiovascular Surgery, Hanyang University Hospital, College of Medicine, Hanyang University)
Publication Information
Journal of Chest Surgery / v.39, no.10, 2006 , pp. 759-764 More about this Journal
Abstract
Background: We analyzed post-operative angiography performed in symptomatic patients to evaluate the patency rates and the roles of grafts. Material and Method: We reviewed 52 (15%) coronary angiograms performed for recurrent angina after prior coronary artery bypass surgery from January 1995 to June 2005. A total of 345 patients underwent coronary artery bypass surgery during this period. There were 41 men and 11 women and the mean age was $64.07{\pm}15.58$ years. The median period from operation to re-angiogram was 68.5 months (range, 1 to 126 months). The numbers of grafts and peripheral anastomoses were 42 and 43 for internal thoracic artery (ITA), 14 and 20 for radial artery (RA), and 49 and 89 for saphenous vein. The mean number of anastomosis was 2.9 per patient, Result: The patency rates of ITA, RA and saphenous vein graft (SVG) were 37/43 (86%), 17/20 (85%) and 34/89 (38.2%). The patency rate of arterial grafts was significantly higher than that of SVG (p< 0.001) and the patency rate of the RA was comparable to that of ITA (p=0.942). The patency rate of sequential SVGs was higher than that of single SVG (40.3% vs 31.8%, p=0.478) and the patency rate of proximal segments in sequential anastomosis was higher than that in single anastomsis (55.6% vs 31.8%, p=0.097), but statistically not significant. Conclusion: Arterial grafts have markedly superior patency rates than SVGs, so consideration should be given to the vigorous use of arterial grafts. The patency rate of the RA was comparable to that of ITA.
Keywords
Coronary artery bypass conduits; Angiography;
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