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Single Versus Multi-Specialty Operative Teams: Association with Perioperative Mortality after Endovascular Abdominal Aortic Aneurysm Repair

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Endovascular abdominal aortic aneurysm repair (EVAR) requires both endovascular and open surgical skills. Although usually performed by a single operating specialist, EVAR may alternatively involve multiple teams from different specialties performing separate procedural components. We examined the relative frequencies of single versus multi-specialty EVAR in the 2005 to 2008 American College of Surgeons National Surgical Quality Improvement Participant Use Datafile and explored the influence of multi-specialty EVAR on 30-day mortality. EVARs were identified and classified as single or multiple-specialty procedures based on Current Procedural Terminology codes. Baseline and procedural characteristics were compared using χ2 or Fisher's exact test for categorical variables and t test for continuous variables. The association between multi-specialty EVAR and 30-day mortality was examined using a multivariate logistic regression model. Of 7269 EVAR patients identified, 7086 were single and 183 were multi-specialty. Multi-specialty patients had higher frequency of brachial or iliac artery exposure and longer operative times, but were otherwise similar in baseline and procedural characteristics. In the multivariate model, multi-specialty EVAR was associated with increased risk of 30-day mortality (odds ratio 2.35; 95% confidence interval 1.08‐5.11; P value 0.031). Multi-specialty participation in EVAR procedures is associated with significantly higher 30-day mortality. Further research is warranted to determine whether multi-specialty participation reflects provider experience, institutional protocols, procedural complexity, non-surgical or other factors.
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Document Type: Research Article

Affiliations: 1: Department of Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA 2: Section of Vascular Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA 3: Department of Vascular Surgery, Wake Forest Medical Center, Winston-Salem, North Carolina, USA 4: Surgical Service, Atlanta VA Medical Center, Division of Vascular Surgery and Endovascular Therapy, Emory University School of Medicine, Atlanta, Georgia, USA

Publication date: February 1, 2012

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  • The Southeastern Surgical Congress owns and publishes The American Surgeon monthly. It is the official journal of the Congress and the Southern California Chapter of the American College of Surgeons, which all members receive each month. The journal brings up to date clinical advances in surgical knowledge in a popular reference format. In addition to publishing papers presented at the annual meetings of the associated organizations, the journal publishes selected unsolicited manuscripts. If you have a manuscript you'd like to see published in The American Surgeon select "Information for Authors" from the Related Information options below. A Copyright Release Form must accompany all manuscripts submitted.
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