Embolization for Chronic Subdural Hematoma in Cancer Patients: A Propensity-Matched Study

In cancer patients with chronic subdural hematoma, middle meningeal artery embolization (MMAE) was associated with lower 90-day mortality vs medical management (15.3% vs 20.9%; HR 0.69) and fewer rescue surgeries when added to surgery (8.8% vs 13.7%; HR 0.63).

• Propensity-matched cohort study using TriNetX database; 694 matched pairs for MMAE vs medical management, 355 for surgery+MMAE vs surgery alone in cancer patients.
• MMAE vs medical management: 90-day mortality HR 0.69 (95% CI 0.53–0.89, p=0.004); rescue surgery no difference. Adding MMAE to surgery: rescue surgery HR 0.63 (95% CI 0.40–0.99, p=0.04).

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