• Georgios S Sioutas, Sneha Sai Mannam, Corral TarbayAntonioADepartment of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA., Anna M Nia, Mohamed M Salem, Juan Vivanco-Suarez, Jan-Karl Burkhardt, Brian T Jankowitz, and Visish M Srinivasan.
• Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia, Pennsylvania, USA.
• World Neurosurg. 2023 Aug 1; 176: e83e90e83-e90.

ObjectiveMiddle meningeal artery embolization (MMAE) is an effective minimally invasive option for chronic subdural hematoma (cSDH). Dexamethasone and statins have been reported to improve the resolution of cSDH and reduce its recurrence. However, only 1 study has investigated the role of statins in patients treated with MMAE, and there is no such study on dexamethasone. Thus, we used the TriNetX research network to determine whether adding dexamethasone or statin along with primary MMAE is associated with a benefit in outcomes.MethodsWe queried all primary MMAE cases for cSDH between January 1st, 2012, and July 1st, 2022, in the TriNetX research network. We included patients greater than or equal to 18 years old and separated them regarding statin and dexamethasone use around the time of MMAE. Outcomes were evaluated within 6 months and 3 years after MMAE, and analyses were performed before and after propensity score matching.ResultsThe study included 372 patients with chronic subdural hematoma who underwent MMAE and were on dexamethasone, 339 not on dexamethasone, 391 on statins, and 278 not on statins. After propensity score matching, the dexamethasone cohorts included 250 patients each and only headache remained more prevalent in the dexamethasone cohort at both 6 months (21.2% vs. 10.0%, P = 0.001) and 3 years (23.6% vs. 12.4%, P = 0.001). After propensity score matching, the statin cohorts included 150 patients each and no differences in outcomes were found at both 6 months and 3 months after MMAE.ConclusionsPatients treated with primary MMAE and were on dexamethasone or statins had no differences in mortality and functional/provider dependence compared to those who were not on dexamethasone or statins. Patients on dexamethasone had a higher prevalence of headaches.Copyright © 2023. Published by Elsevier Inc.

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