How long should we fear? Long-term risk of venous thromboembolism in patients with traumatic brain injury.

Background: Although patients with traumatic brain injury (TBI) are known to be at high risk for venous thromboembolism (VTE), it is not clear how long this risk persists after injury. We aimed to determine the risk of VTE in TBI patients during one year following injury and to identify associated factors. Methods: Patients 18 years and older with ICD-9-CM diagnoses of isolated TBI (Head Abbreviated Injury Scale (AIS) >=3 and AIS 64 years vs. 18 - 44 years [2.62 (1.80-3.81)], having an operation during the index admission [1.65 (1.36-2.01)], and hospital length of stay >7 days vs.

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