Gerola L R, Puig L B, Moreira L F, Cividanes G V, Gemha G P, Souto R C, Oppi E C, Souza A H
Hospital Beneficência Portuguesa de São Paulo, Brazil.
Ann Thorac Surg. 1996 Jun;61(6):1708-12; discussion 1712-3. doi: 10.1016/0003-4975(96)00080-X.
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.
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).
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%).
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.
本研究展示了原位使用的右胸廓内动脉（ITA）经心包横窦至回旋支动脉及其分支的晚期通畅率。
1983年4月至1994年12月，2642例患者接受了心肌血运重建；其中201例患者使用了双侧ITA。170例患者（84.5%）将经横窦的右ITA移植至钝缘支动脉，188例患者（93.5%）将左ITA移植至前降支动脉。对80例患者进行了血管造影研究，其中44例在术后即刻，36例在晚期随访（平均51.6个月）。
右ITA通畅的有75例（93.7%），左ITA通畅的有77例（96.2%）。在术后晚期，右ITA通畅的有33例（91.6%），左ITA通畅的有34例（94.4%）。
经心包横窦放置的右ITA具有良好的长期通畅率，与左ITA相似，且优于用于心肌血运重建的大隐静脉移植血管。
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