Hearne S E, Davidson C J, Zidar J P, Phillips H R, Stack R S, Sketch M H
Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710, USA.
Cathet Cardiovasc Diagn. 1998 Jun;44(2):153-6; discussion 157-8. doi: 10.1002/(sici)1097-0304(199806)44:2<153::aid-ccd6>3.0.co;2-5.
Secondary to the low attrition rate of internal mammary artery grafts, limited data are available on the clinical and angiographic outcome of patients who have undergone balloon angioplasty of an internal mammary artery stenosis. This study examined a consecutive series of 68 patients who underwent balloon angioplasty of an internal mammary artery graft over a 9-year period. Procedural success was achieved in 60 of 68 (88%) patients. The primary reason for procedural failure was extreme vessel tortuosity. There were no major in-hospital complications. Angiographic follow-up was obtained in 78% of the patients with an angiographic restenosis rate of 19%. The overall event-free survival in patients with an initially successful procedure was 92%. In conclusion, internal mammary artery balloon angioplasty has both an excellent initial success rate as well as a low incidence of restenosis and repeat target lesion revascularization.
由于乳内动脉移植物的低损耗率，关于接受乳内动脉狭窄球囊血管成形术患者的临床和血管造影结果的数据有限。本研究检查了连续68例在9年期间接受乳内动脉移植物球囊血管成形术的患者。68例患者中有60例（88%）手术成功。手术失败的主要原因是血管极度迂曲。没有发生重大的院内并发症。78%的患者进行了血管造影随访，血管造影再狭窄率为19%。最初手术成功的患者的总体无事件生存率为92%。总之，乳内动脉球囊血管成形术具有出色的初始成功率以及较低的再狭窄和重复靶病变血管重建发生率。
