Sbarouni E, Corr L, Fenech A
Department of Cardiology, Brook Hospital, London, United Kingdom.
Cathet Cardiovasc Diagn. 1994 Apr;31(4):334-6. doi: 10.1002/ccd.1810310417.
Coronary artery steal via a large unligated intercoastal side-branch of the internal mammary artery graft has been previously described in two case reports. We report a series of 7 patients with post-operative angina in whom microcoil embolization of such branch was performed. In 5 patients in whom complete occlusion of the branch was achieved, anginal symptoms were relieved; in contrast the 2 patients with persistent flow through the intercostal branch remained symptomatic despite all their grafts being widely patent. We conclude that large unligated intercostal branches of the IMA graft may be related with post-operative angina and their embolization is a simple, safe, and effective procedure.
既往已有两篇病例报告描述了通过未结扎的胸廓内动脉移植大肋间侧支发生的冠状动脉窃血现象。我们报告了一组7例术后心绞痛患者，对其此类分支进行了微线圈栓塞治疗。在5例实现分支完全闭塞的患者中，心绞痛症状得到缓解；相比之下，2例肋间分支持续有血流的患者尽管所有移植血管均广泛通畅，但仍有症状。我们得出结论，胸廓内动脉移植的未结扎大肋间分支可能与术后心绞痛有关，对其进行栓塞是一种简单、安全且有效的方法。
