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. 2022 Jan;88(1):126-132.
doi: 10.1177/0003134820982577. Epub 2020 Dec 23.

Impact of Chemoprophylaxis on Thromboembolism Following Operative Fixation of Pelvic Fractures

Bennett J Berning  1 , Louis J Magnotti  2 , Richard H Lewis  2 , Catherine E Corley  2 , Garrett H Lim  3 , John B Doty  2 , Timothy C Fabian  2 , Martin A Croce  2 , John P Sharpe  4
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Impact of Chemoprophylaxis on Thromboembolism Following Operative Fixation of Pelvic Fractures

Bennett J Berning et al. Am Surg. 2022 Jan.

Abstract

Background: Venous thromboembolism (VTE) is a common cause of serious morbidity and mortality. While chemoprophylaxis decreases VTE, there is the theoretical risk of increased hemorrhagic complications. The purpose of this study was to evaluate the impact of preoperative anticoagulation on VTE and bleeding complications in patients with blunt pelvic fractures requiring operative fixation.

Methods: Patients with blunt pelvic fractures requiring operative fixation over 10.5 years were identified. Patients were stratified by age, severity of shock, operative management, and timing and duration of anticoagulation. Outcomes were evaluated to determine risk factors for bleeding complications and VTE.

Results: 310 patients were identified: 212 patients received at least one dose of preoperative anticoagulation and 98 received no preoperative anticoagulation. 68% were male with a mean injury severity score and Glasgow Coma Scale of 26 and 13, respectively. Bleeding complications occurred in 24 patients and 21 patients suffered VTE. Patients with VTE had a greater initial severity of shock (resuscitation transfusions, 4 vs. 2 units, P = .02). Despite longer time to mobilization (4 vs. 3 days, P = .001), patients who received their scheduled preoperative doses within 48 hours of arrival had no significant differences in the number of deep vein thrombosis events (5.2% vs. 5.7%, P = .99), but fewer episodes of pulmonary embolism (PE) (1.5% vs. 6.8%, P = .03) with no difference in bleeding complications (7.5% vs. 8%, P = .87) compared to either patients who had their doses held until after 48 hours of arrival or received no preoperative anticoagulation.

Discussion: Preoperative anticoagulation prior to pelvic fixation reduced the risk of PE without increasing bleeding complications. Preoperative anticoagulation is safe and beneficial in this group of patients.

Keywords: chemoprophylaxsis; pelvic fracture; trauma; venous thromboembolism.

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