Mufti S I, Young K R, Schulthesis T
Department of Cardiology, Welborn Baptist Hospital, Evansville, Indiana 47713.
Cathet Cardiovasc Diagn. 1994 Oct;33(2):172-4. doi: 10.1002/ccd.1810330220.
We report a case of progressive angina pectoris 4 years post coronary bypass surgery, in which the left internal mammary artery (LIMA) was grafted to the native left anterior descending coronary artery. The coronary-subclavian steal phenomenon was proven angiographically with retrograde reflux through the LIMA graft into the distal subclavian vessel, downstream from a critical stenosis at the origin of the subclavian artery. After initially successful angioplasty of the ostial subclavian lesion, restenosis and return of angina prompted repeat dilatation and placement of a Palmaz 154-M stent. Follow-up catheterization has demonstrated persistent patency at the stented site and absence of coronary steal.
我们报告一例冠状动脉搭桥手术后4年出现进行性心绞痛的病例,术中左乳内动脉(LIMA)被移植到左前降支冠状动脉。经血管造影证实存在冠状动脉-锁骨下动脉窃血现象,通过LIMA移植物逆行反流至锁骨下动脉远端血管,该血管位于锁骨下动脉起始处严重狭窄的下游。在最初成功对锁骨下动脉开口病变进行血管成形术后,再狭窄及心绞痛复发促使再次扩张并置入Palmaz 154-M支架。随访导管检查显示支架置入部位持续通畅,且无冠状动脉窃血现象。