• J. Am. Coll. Surg. · Jan 2011

    Multicenter Study

    Validation of the Caprini risk assessment model in plastic and reconstructive surgery patients.

    • Christopher J Pannucci, Steven H Bailey, George Dreszer, Christine Fisher Wachtman, Justin W Zumsteg, Reda M Jaber, Jennifer B Hamill, Keith M Hume, J Peter Rubin, Peter C Neligan, Loree K Kalliainen, Ronald E Hoxworth, Andrea L Pusic, and Edwin G Wilkins.
    • Department of Surgery, University of Michigan, Ann Arbor, 48105, USA.
    • J. Am. Coll. Surg. 2011 Jan 1; 212 (1): 105112105-12.

    BackgroundThe Venous Thromboembolism Prevention Study (VTEPS) Network is a consortium of 5 tertiary referral centers established to examine venous thromboembolism (VTE) in plastic surgery patients. We report our midterm analyses of the study's control group to evaluate the incidence of VTE in patients who receive no chemoprophylaxis, and validate the Caprini Risk Assessment Model (RAM) in plastic surgery patients.Study DesignMedical record review was performed at VTEPS centers for all eligible plastic surgery patients between March 2006 and June 2009. Inclusion criteria were Caprini score ≥3, surgery under general anesthesia, and postoperative hospital admission. Patients who received chemoprophylaxis were excluded. Dependent variables included symptomatic deep vein thrombosis (DVT) or pulmonary embolism (PE) within the first 60 postoperative days and time to DVT or PE.ResultsWe identified 1,126 historic control patients. The overall VTE incidence was 1.69%. Approximately 1 in 9 (11.3%) patients with Caprini score >8 had a VTE event. Patients with Caprini score >8 were significantly more likely to develop VTE when compared with patients with Caprini score of 3 to 4 (odds ratio [OR] 20.9, p < 0.001), 5 to 6 (OR 9.9, p < 0.001), or 7 to 8 (OR 4.6, p = 0.015). Among patients with Caprini score 7 to 8 or Caprini score >8, VTE risk was not limited to the immediate postoperative period (postoperative days 1-14). In these high-risk patients, more than 50% of VTE events were diagnosed in the late (days 15-60) postoperative period.ConclusionsThe Caprini RAM effectively risk-stratifies plastic and reconstructive surgery patients for VTE risk. Among patients with Caprini score >8, 11.3% have a postoperative VTE when chemoprophylaxis is not provided. In higher risk patients, there was no evidence that VTE risk is limited to the immediate postoperative period.Copyright © 2011 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

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