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Journal of Neurosurgical Sciences 2021 Mar 11

DOI: 10.23736/S0390-5616.21.05216-4


lingua: Inglese

The effect of perioperative non-steroidal anti-inflammatory drugs and male sex on the recurrence rates after chronic subdural hematoma evacuation

Matthias TOMSCHIK, Dominik WIEDNER, Johannes HERTA, Jonathan WAIS, Fabian WINTER, Karl ROESSLER, Christian DORFER

Department of Neurosurgery, Medical University of Vienna, Vienna, Austria


BACKGROUND: Drugs that inhibit blood clot formation are a risk factor for the development and recurrence of chronic subdural hematoma (cSDH). The use of non-steroidal antiinflammatory drug (NSAID) was associated with higher bleeding rates in non-neurosurgical patients, but their influence on cranial hematomas is unclear. We sought to better describe the hazard associated with their use in cSDH patients and find additional risk factors.
METHODS: We performed a retrospective analysis of patients undergoing burr hole drainage for cSDH over a time period of 15 years. Demographic and surgical details were extracted from individual patient records. Patients were followed for up to 90 days with SDH recurrence requiring repeat surgery as the primary endpoint. Univariate and multivariate Cox regression models were performed to identify risk factors and their effect size.
RESULTS: We included 361 patients, who underwent burr hole drainage for cSDH. Recurrences occurred in 73 patients (20.2%) after a median time period of 18 days. Sixty-six patients in our cohort were taking NSAIDs perioperatively. The recurrence rate was not higher in NSAID users compared to other patients with 18.2% and 20.7%, respectively. 23.5% of men, yet only 12.7% of women had recurrences revealing male sex as a risk factor in a uni- and multivariate regression. Not placing a drain was a risk factor for early recurrences, which resulted in a prolonged hospital stay.
CONCLUSIONS: We identified male sex as a risk factor for cSDH recurrence after burr hole drainage, while perioperative NSAID use did not increase recurrence rates.

KEY WORDS: Chronic subdural hematoma; Anti-Inflammatory Agents, Non-Steroidal; Recurrence

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