Weight-based enoxaparin with anti-factor Xa assay-based dose adjustment for venous thromboembolic event prophylaxis in adult trauma patients results in improved prophylactic range targeting

Autor: Charles DiMaggio, Patricia Ayoung-Chee, Marko Bukur, Manish Tandon, Samantha Moore, Gary T. Marshall, Simon Rodier, Spiros G. Frangos
Rok vydání: 2019
Předmět:
Zdroj: European Journal of Trauma and Emergency Surgery. 47:145-151
ISSN: 1863-9941
1863-9933
Popis: Venous thromboembolism (VTE) is a common morbidity in trauma patients. Standard VTE chemoprophylaxis is often inadequate. We hypothesized that weight-based dosing would result in appropriate prophylaxis more reliably than fixed dosing. All patients admitted to a Level 1 trauma center over a 6-month period were included unless contra-indications for VTE prophylaxis existed. A prospective adjusted-dosing group was compared to a retrospective uniform-dosing group. The adjusted-dosing approach consisted of initial weight-based dosing of 0.5 mg/kg subcutaneously (subQ) every 12 h (q12h). Peak anti-factor Xa was measured. Patients outside of the prophylactic range had their dose adjusted by ± 10 mg. The uniform-dosing group received 30 mg subQ q12h, without adjustments. Eighty-four patients were included: 44 in the retrospective control cohort and 40 in the prospective experimental cohort. More patients were sub-prophylactically dosed in the uniform-dosing group relative to the adjusted-dosing group (25% vs 5%, p = 0.03). There was no difference in overall prophylactic range targeting, because the supra-prophylactically dosed patients in the adjusted-dosing group eliminated the effect (p = 0.173). However, after a single dose adjustment, zero patients were outside of prophylactic range (25% versus 0%, RR = infinite, p = 0.003). In the uniform-dosing group, anti-Xa level correlated with body surface area (BSA; R2 = 0.33, p
Databáze: OpenAIRE
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