Dual-lumen balloon catheter aids Onyx embolization of MMA for chronic subdural hematoma

Dual-lumen balloon-assisted Onyx embolization of the middle meningeal artery achieved >50% hematoma reduction in 90.4% and complete resolution in 70.6% of chronic subdural hematoma patients at 3 months, with no recurrences and a 2.6% complication rate.

• In this single-center retrospective study of 152 patients, 108 underwent standalone MMAE.
• Median procedure time was 31.5 minutes (IQR 24.3–48.8).
• No recurrences or retreatments were reported among patients who completed follow-up.

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