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  • Title: Right internal thoracic artery through the transverse sinus in myocardial revascularization.
    Author: Gerola LR, Puig LB, Moreira LF, Cividanes GV, Gemha GP, Souto RC, Oppi EC, Souza AH.
    Journal: Ann Thorac Surg; 1996 Jun; 61(6):1708-12; discussion 1712-3. PubMed ID: 8651771.
    Abstract:
    BACKGROUND: This study presents the late patency rate of the right internal thoracic artery (ITA) used in situ through the pericardium transverse sinus to the circumflex artery and its branches. METHODS: From April 1983 to December 1994, 2,642 patients were submitted to myocardial revascularization; 201 of them had bilateral ITAs. The right ITA through the transverse sinus was grafted to obtuse marginal artery in 170 patients (84.5%) and the left ITA was grafted to the anterior descending artery in 188 patients (93.5%). Angiographic studies were performed in 80 patients, 44 patients in the immediate postoperative period and 36 patients in the late follow-up (mean, 51.6 months). RESULTS: The right ITA was patent in 75 patients (93.7%) and the left ITA was patent in 77 (96.2%). At the late postoperative period, the right ITA was patent in 33 patients (91.6%) and the left ITA was patent in 34 (94.4%). CONCLUSIONS: The right ITA placed through the pericardium transverse sinus has a good long-term patency rate, similar to that observed with the left ITA and superior to that of saphenous vein grafts for myocardial revascularization.
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