• Frederick B Rogers, Sally J Hammaker, Jo Ann Miller, John C Lee, Roxanne Chandler, Mathew M Edavettal, Lois U Sakorafas, Daniel Wu, Tracy Evans, Lanyce A Horn, and Michael Horst.
• Division of Trauma, Lancaster General Hospital, PA, USA. frogers2@lghealth.org
• Am. J. Surg. 2011 Oct 1; 202 (4): 382-6.

BackgroundThe aim of this study was to determine if prolonged immobility and tissue injury from a prehospital entrapment would place patients at higher risk for in-hospital venous thromboembolism (VTE) complications. It was hypothesized that entrapment would increase in-hospital VTE.MethodsAll consecutive trauma admissions over a 10-year period were retrospectively reviewed. Patients were divided into those who were entrapped according to defined prehospital criteria for entrapment and those who were not entrapped. The complications of deep vein thrombosis and pulmonary embolism were noted.ResultsThere were 15,159 patients admitted between 1999 and 2008. Of these, 1,176 met the criteria for prehospital entrapment. Those patients who met the criteria for entrapment had a significant risk for developing both deep vein thrombosis (P < .001, χ(2) test) and pulmonary embolism (P = .005, Fisher's exact test). Multiple logistic regression analysis revealed entrapment to be a significant contributing risk factor to the development of VTE (odds ratio, 1.54; P = .04).ConclusionsPatients with prehospital entrapment are at higher risk for VTE. These results mandate aggressive VTE prophylaxis in patients with histories of prehospital entrapment.Copyright © 2011 Elsevier Inc. All rights reserved.

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