Endovascular management versus surgery for proximal subclavian artery lesions

Ann Vasc Surg. 2008 Nov;22(6):769-75. doi: 10.1016/j.avsg.2008.08.001. Epub 2008 Sep 21.

Abstract

Current management of subclavian artery (SA) lesions is controversial. Subclavian-to-carotid artery transposition (SCT) may be challenging but exhibits unparalleled long-term results. Stent-supported percutaneous transluminal angioplasty (sPTA) is technically easier but not always feasible. Long-term results and comparisons have not been published. We compared both methods performed by vascular surgeons. Data were collected prospectively with retrospective analysis at a tertiary-care center. sPTA was performed through a retrograde transbrachial access using self-expanding nitinol stents. Open surgery was SCT only. Society for Vascular Surgery/International Society of Cardiovascular Surgery reporting standards were applied. Seventy-four patients underwent treatment from January 1995 to August 2007 (median age 62.6 years, 40 female; left-sided pathology 60 [81.1%]; risk factors: hypertension 45 [60.8%], dyslipidemia 47 [63.5%], diabetes 21 [28.4%], smoking 43 [58.1%], SA occlusion 50 [67.6%]). Forty patients (54.1%) underwent primary sPTA (62.5% occlusions) and 34 SCT (73.5% occlusions). The two groups were comparable with regard to risk factors. In 12 patients occlusions could not be recanalized (30%), and in two stents failed within 1 month (both for stenosis). All but one underwent subsequent uneventful SCT. All SCTs were successful. No risk factor could be identified for treatment failure except sPTA (p = 0.002, Fisher's exact test). Median follow-up was 50.1 months with sPTA and 52.6 months with SCT. No procedure failed during follow-up in either group. sPTA can be performed successfully by surgeons. Primary sPTA failed in 48% of occlusions (30% of all sPTAs). Prediction of failure is not possible. According to our experience, we recommend primary sPTA for SA stenosis and surgery for SA occlusions.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Alloys
  • Angioplasty, Balloon / adverse effects
  • Angioplasty, Balloon / instrumentation*
  • Coronary Vessels / surgery*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Practice Guidelines as Topic
  • Prosthesis Design
  • Retrospective Studies
  • Stents*
  • Subclavian Steal Syndrome / pathology
  • Subclavian Steal Syndrome / physiopathology
  • Subclavian Steal Syndrome / surgery
  • Subclavian Steal Syndrome / therapy*
  • Time Factors
  • Treatment Failure
  • Treatment Outcome
  • Vascular Patency
  • Vascular Surgical Procedures* / adverse effects

Substances

  • Alloys
  • nitinol