| Factors affecting patency of subintimal infrainguinal angioplasty in patients with critical lower limb ischemia. | |
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MedLine Citation:
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PMID: 16968668 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Because subintimal angioplasty (SA) is a technique that can achieve recanalization of long arterial occlusions, it is considered an alternative to lower limb bypass operations. The aim of this prospective study was to identify the risk factors that affect patency of SA in patients suffering from critical limb ischemia (CLI). METHODS AND RESULTS: 51 consecutive infrainguinal SA were done in 46 patients suffered from CLI. The patients were followed-up with regular duplex scans up to 12 months post-intervention. Sex, atherosclerosis risk factors, and some technical details of the procedure (number of patent run-off vessels after the procedure, length and re-entry point of angioplasty) were examined as potential risk factors of patency, using survival analysis statistical techniques. The overall patency rate at 12 months post-intervention was 50%. According to Cox-regression analysis, the factors that affect patency were the number of run-off vessels and the length of occlusion. Patients with two or three run-off vessels had a hazard of occlusion of 0.30 (P = .027) compared to those who had one run-off vessel. The 12-months patency in patients with more than one run-off vessels was 81% vs. 25% in patients with one run-off vessel. Regarding the length of angioplasty, the hazard of reocclusion was 1.02 for every centimeter of occlusion (P = .049). CONCLUSIONS: The number of patent run-off crural vessels after the angioplasty and the length of occlusion are significant risk factors for reocclusion of infrainguinal SA in patients with CLI. Trying to recanalize more than one run-off vessels could raise the SA patency. |
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Authors:
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A M Lazaris; C Salas; A C Tsiamis; P A Vlachou; A Bolia; G Fishwick; P R Bell |
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Publication Detail:
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Type: Comparative Study; Journal Article Date: 2006-09-11 |
Journal Detail:
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Title: European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery Volume: 32 ISSN: 1078-5884 ISO Abbreviation: Eur J Vasc Endovasc Surg Publication Date: 2006 Dec |
Date Detail:
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Created Date: 2006-11-10 Completed Date: 2007-01-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9512728 Medline TA: Eur J Vasc Endovasc Surg Country: England |
Other Details:
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Languages: eng Pagination: 668-74 Citation Subset: IM |
Affiliation:
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Attikon Teaching Hospital, 3rd Surgical Department, Athens, Greece. amlazaris@med.uoa.gr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Amputation Angioplasty / methods* Arterial Occlusive Diseases / mortality, physiopathology, surgery* Female Femoral Artery / surgery Follow-Up Studies Humans Ischemia / mortality, surgery* Kaplan-Meiers Estimate Limb Salvage Lower Extremity / blood supply* Male Middle Aged Popliteal Artery / surgery Prospective Studies Regression Analysis Reoperation Risk Factors Time Factors Treatment Outcome Tunica Intima / surgery Vascular Patency* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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