Endovascular Therapy of Left Subclavian Artery Stenosis in Patients with Left Internal Mammary-Coronary Artery Bypass Graft.
10.3348/jkrs.2006.55.2.129
- Author:
Hwan Jun JAE
1
;
Jae Hyung PARK
;
Cheong Il SHIN
;
Byung Jin LEE
;
Young Kwon CHO
;
Jin Wook CHUNG
Author Information
1. Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, Seoul National University Medical Research Center, and Clinical Research Institute, Seoul National University Hospital, Korea. parkjh@radcom.snu.ac.kr
- Publication Type:Original Article
- Keywords:
Stents and prostheses;
Arteries, internal mammary;
Coronary vessels, surgery
- MeSH:
Angioplasty;
Arteries*;
Atherosclerosis;
Constriction, Pathologic;
Coronary Artery Bypass;
Embolism;
Follow-Up Studies;
Humans;
Male;
Mammary Arteries;
Retrospective Studies;
Stents;
Subclavian Artery*;
Subclavian Steal Syndrome*;
Transplants*
- From:Journal of the Korean Radiological Society
2006;55(2):129-135
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: We wanted to evaluate the clinical usefulness of percutaneous transluminal angioplasty (PTA) and stenting of left subclavian artery (LSA) stenosis in the patients with a left internal mammary artery (LIMA)-coronary artery bypass graft. MATERIALS AND METHODS: From September 1998 to November 2005, significant proximal LSA stenoses were treated with PTA and stenting in 22 patients (15 men and 7 women) who had a prior LIMA-coronary artery bypass graft or who were willing to undergo LIMA-coronary artery bypass grafting. The technical success rates, complications and restenosis during the follow-up period were retrospectively evaluated. RESULTS: Six patients had a prior LIMA bypass graft and 16 patients were treated before their coronary artery bypass surgery. The etiology of the LSA stenosis was atherosclerosis in all patients. Four patients were treated with PTA only, and stents were placed in 18 patients. Technical success was achieved in all patients. An embolism in the proximal LIMA occurred after stenting in one patient, and the LIMA was recanalized with transcatheter thrombolysis. During a mean follow-up of 30 months, only one patient was found to have recurrent LSA stenosis 29 months after stenting and this patient was successfully managed with angioplasty. CONCLUSION: Endovascular therapy is useful and efficacious for the treatment of LSA stenosis in patients with a LIMA-coronary artery bypass graft.
