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VOUTILAINEN, S. M; JÄRVINEN, A. A; VERKKALA, K. A; KETO, P. E; HEIKKINEN, L. O; VOUTILAINEN, P. E; HARJOLA, P.-T
Annals of surgery, 1999, 1999-Jan, 1999-01-00, 19990101, Letnik: 229, Številka: 1Journal Article
To assess the behavior of internal thoracic artery (ITA) grafts versus venous grafts in repeated angiograms up to 20 years. Use of ITA grafts to bypass left anterior descending artery stenosis has been shown to be associated with improved survival in patients undergoing coronary artery bypass grafting. Sixty-one consecutive patients who received one or two ITA grafts and who underwent surgery from Oct. 5, 1971, to Dec. 18, 1973, in Helsinki University Central Hospital, Finland, were included in this prospective follow-up series. Fifty-six of the patients (92%) also received at least one venous graft. The number of distal anastomoses was 157, of which 47.7% (75) were performed with ITA grafts. The median age of the patients was 47.7 years (range 30.0 to 63.1), and 85% (52) were men. After 20 years of follow-up, 18/20 (90%) of the survivors underwent angiography; the patency rate was 88.9% for ITA grafts and 47.8% for venous grafts. Cumulative graft patency at 20 years, using all the information obtained from repeated angiographic examinations and autopsies, was also calculated to eliminate selection bias. The cumulative 20-year patency rate was 81% for ITA-left anterior descending artery anastomoses, 53.8% for venous graft-right coronary artery anastomoses, and 48.5% for venous graft-left circumflex artery anastomoses. In paired comparisons between anastomoses, the patency time of the ITA-left anterior descending artery anastomoses was on average 2.8 years longer than the venous graft-left circumflex artery patency time and 2.6 years longer than the venous graft-right coronary artery. Internal thoracic artery grafts, especially in left anterior descending artery anastomoses, should be considered as a primary solution in coronary artery bypass grafting surgery in patients with >10 years of life expectancy; if venous grafting is preferred, further evidence is needed.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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