Amano A, Toyama M, Sato T
Department of Cardiovascular Surgery, Kameda General Hospital, Kamogawa, Japan.
Nihon Kyobu Geka Gakkai Zasshi. 1990 Feb;38(2):341-5.
We experienced a coronary artery bypass reoperation utilizing bilateral free internal mammary artery (IMA) grafts for a 68 year old male with unstable angina due to graft occlusion. Although post-operative early graftgraphy showed LAD graft stenosis, it resolved completely at the second graftgraphy one year after the operation. Recently in situ IMA grafting has become a standard method for coronary artery revascularization because of its long term high patency rate. On the other hand, free IMA grafting has been rarely tried in our country. Though there has been a few reports of the growth and enlargement of in situ IMA graft, similar events in free IMA graft are rare and not found in the literature. We feel our case of spontaneous resolution of free IMA graft stenosis is unique and worth reporting.
我们为一名68岁因移植血管闭塞导致不稳定型心绞痛的男性患者进行了冠状动脉搭桥再次手术，使用双侧游离胸廓内动脉（IMA）移植。尽管术后早期移植血管造影显示左前降支移植血管狭窄，但在术后一年的第二次移植血管造影时完全缓解。近来，由于原位IMA移植长期通畅率高，已成为冠状动脉血运重建的标准方法。另一方面，游离IMA移植在我国很少尝试。虽然有一些关于原位IMA移植生长和扩张的报道，但游离IMA移植的类似情况很少见，文献中也未发现。我们认为我们的游离IMA移植狭窄自发缓解病例很独特，值得报道。
