|Distal anastomotic vein adjunct usage in infrainguinal prosthetic bypasses.|
|PMID: 23375606 Owner: NLM Status: MEDLINE|
|OBJECTIVE: Single-segment saphenous vein remains the optimal conduit for infrainguinal revascularization. In its absence, prosthetic conduit may be used. Existing data regarding the significance of anastomotic distal vein adjunct (DVA) usage with prosthetic grafts are based on small series.
METHODS: This is a retrospective cohort analysis derived from the regional Vascular Study Group of New England as well as the Brigham and Women's hospital database. A total of 1018 infrainguinal prosthetic bypass grafts were captured in the dataset from 73 surgeons at 15 participating institutions. Propensity scoring and 3:1 matching was performed to create similar exposure groups for analysis. Outcome measures of interest included: primary patency, freedom from major adverse limb events (MALEs), and amputation free survival at 1 year as a function of vein patch utilization. Time to event data were compared with the log-rank test; multivariable Cox proportional hazard models were used to evaluate the adjusted association between vein cuff usage and the primary end points. DVA was defined as a vein patch, cuff, or boot in any configuration.
RESULTS: Of the 1018 bypass operations, 94 (9.2%) had a DVA whereas 924 (90.8%) did not (no DVA). After propensity score matching, 88 DVAs (25%) and 264 no DVAs (75%) were analyzed. On univariate analysis of the matched cohort, the DVA and no DVA groups were similar in terms of mean age (70.0 vs 69.0; P = .55), male sex (58.0% vs 58.3%; P > .99), and preoperative characteristics such as living at home (93.2% vs 94.3%; P = .79) and independent ambulatory status (72.7% vs 75.7%; P = .64). The DVA and no DVA groups had similar rates of major comorbidities such as hypertension chronic obstructive pulmonary disease, diabetes mellitus, coronary artery disease, and dialysis dependence (P > .05 for all). Likewise, they had similar rates of distal origin grafts (13.6% vs 12.5%; P = .85), critical limb ischemia indications (P = .53), and prior arterial bypass (58% vs 47%; P = .08). The DVA group had a higher rate of completion angiogram performed (55.7% vs 37.5%; P =.002) and were more likely to be discharged on coumadin (53.4% vs 37.1%; P =.01). By multivariable analysis, use of a distal DVA was protective against MALEs (hazard ratio, 0.36; 95% confidence interval, 0.14-0.90; P = .03).
CONCLUSIONS: This contemporary multi-institutional propensity-matched study demonstrates that patients that receive distal anastomotic vein adjuncts as part of infrainguinal prosthetic bypass operations in general have more extreme comorbidities and more technically challenging operations based on level of target vessel and prior bypass attempts. After propensity-matched analysis, the use of a DVA may protect against MALEs in prosthetic bypass surgery and should be considered when feasible.
|James T McPhee; Philip P Goodney; Andres Schanzer; Shimon Shaykevich; Michael Belkin; Matthew T Menard|
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|Type: Journal Article; Multicenter Study Date: 2013-02-01|
|Title: Journal of vascular surgery Volume: 57 ISSN: 1097-6809 ISO Abbreviation: J. Vasc. Surg. Publication Date: 2013 Apr|
|Created Date: 2013-03-28 Completed Date: 2013-05-22 Revised Date: 2014-02-23|
Medline Journal Info:
|Nlm Unique ID: 8407742 Medline TA: J Vasc Surg Country: United States|
|Languages: eng Pagination: 982-9 Citation Subset: IM|
|Copyright © 2013 Society for Vascular Surgery. Published by Mosby, Inc. All rights reserved.|
|APA/MLA Format Download EndNote Download BibTex|
Aged, 80 and over
Blood Vessel Prosthesis Implantation / adverse effects, methods*, mortality
Lower Extremity / blood supply*
Peripheral Arterial Disease / diagnosis, mortality, surgery*
Postoperative Complications / etiology, surgery
Proportional Hazards Models
Veins / surgery
|K08 HL105676/HL/NHLBI NIH HHS|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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