Fabio A Frisoli1, Matthew Shinseki1, Lynda Nwabuobi2, Xiaopei L Zeng3, Murillo Adrados2, Carolyn Kanter2, Spiros G Frangos3, Paul P Huang4. 1. Department of Neurosurgery, New York University School of Medicine, New York, New York. 2. Department of Neurology, New York University School of Medicine, New York, New York. 3. Department of Surgery, Division of Trauma and Acute Care Surgery, Bellevue Hospital Center, New York, New York. 4. Department of Neurosurgery, Bellevue Hospital Center, New York, New York.
Abstract
BACKGROUND: Venous thromboembolism is a common complication of traumatic brain injury with an estimated incidence of 25% when chemoprophylaxis is delayed. The timing of initiating prophylaxis is controversial given the concern for hemorrhage expansion. OBJECTIVE: To determine the safety of initiating venous thromboembolic event (VTE) chemoprophylaxis within 24 h of presentation. METHODS: We performed a retrospective analysis of patients with traumatic intracranial hemorrhage presenting to a level I trauma center. Patients receiving early chemoprophylaxis (<24 h) were compared to the matched cohort of patients who received heparin in a delayed fashion (>48 h). The primary outcome of the study was radiographic expansion of the intracranial hemorrhage. Secondary outcomes included VTE, use of intracranial pressure (ICP) monitoring, delayed decompressive surgery, and all-cause mortality. RESULTS: Of 282 patients, 94 (33%) received chemoprophylaxis within 24 h of admission. The cohorts were evenly matched across all variables. The primary outcome occurred in 18% of patients in the early cohort compared to 17% in the delayed cohort (P = .83). Fifteen patients (16%) in the early cohort underwent an invasive procedure in a delayed fashion; this compares to 35 patients (19%) in the delayed cohort (P = .38). Five patients (1.7%) in our study had a VTE during their hospitalization; 2 of these patients received early chemoprophylaxis (P = .75). The rate of mortality from all causes was similar in both groups. CONCLUSION: Early (<24 h) initiation of VTE chemoprophylaxis in patients with traumatic intracranial hemorrhage appears to be safe. Further prospective studies are needed to validate this finding.
BACKGROUND:Venous thromboembolism is a common complication of traumatic brain injury with an estimated incidence of 25% when chemoprophylaxis is delayed. The timing of initiating prophylaxis is controversial given the concern for hemorrhage expansion. OBJECTIVE: To determine the safety of initiating venous thromboembolic event (VTE) chemoprophylaxis within 24 h of presentation. METHODS: We performed a retrospective analysis of patients with traumatic intracranial hemorrhage presenting to a level I trauma center. Patients receiving early chemoprophylaxis (<24 h) were compared to the matched cohort of patients who received heparin in a delayed fashion (>48 h). The primary outcome of the study was radiographic expansion of the intracranial hemorrhage. Secondary outcomes included VTE, use of intracranial pressure (ICP) monitoring, delayed decompressive surgery, and all-cause mortality. RESULTS: Of 282 patients, 94 (33%) received chemoprophylaxis within 24 h of admission. The cohorts were evenly matched across all variables. The primary outcome occurred in 18% of patients in the early cohort compared to 17% in the delayed cohort (P = .83). Fifteen patients (16%) in the early cohort underwent an invasive procedure in a delayed fashion; this compares to 35 patients (19%) in the delayed cohort (P = .38). Five patients (1.7%) in our study had a VTE during their hospitalization; 2 of these patients received early chemoprophylaxis (P = .75). The rate of mortality from all causes was similar in both groups. CONCLUSION: Early (<24 h) initiation of VTE chemoprophylaxis in patients with traumatic intracranial hemorrhage appears to be safe. Further prospective studies are needed to validate this finding.
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