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Abstract - Case Report

J Cerebrovasc Endovasc Neurosurg. 2021 23(2): 152-158
The Journal of Cerebrovascular and Endovascular Neurosurgery
Middle meningeal artery embolization for postoperative supratentorial chronic subdural hematoma occurring after posterior fossa neurosurgery
Hyun Joo Park, Hyun-Seung Kang
Department of Neurosurgery, Seoul National University Hospital, Seoul, Korea

Chronic subdural hematoma (CSDH) after posterior fossa surgery is rare but may occur. A 70-year-old man with trigeminal neuralgia underwent microvascular decompression. The patient took several medications for trigeminal neuralgia and tremor for a long time. The patient tended to bleed easily and did not stop well, but the bleeding was thoroughly controlled intraoperatively. A month later, he presented with left side weakness, and brain computed tomography showed huge amount of CSDH in the right cerebral convex with midline shifting. Although CSDH was completely drained via burr hole trephination, the brain was not fully expanded, and the CSDH recurred a month later. CSDH was evacuated, but there was still considerable subdural space and remained small CSDH in another superficial subdural space. We considered that the patient was at high risk of recurrence of CSDH and performed middle meningeal artery (MMA) embolization. Afterward, he did not suffer a recurrence. Here, we reviewed the risk factors of CSDH recurrence and the usefulness of MMA embolization in the treatment of CSDH, and we recommend upfront MMA embolization as an effective adjuvant to treat CSDH in patients at a high risk of recurrence of CSDH. Keywords‌Chronic subdural hematoma, Risk factor, Recurrence, Embolization, Middle meningeal artery
Key words : Chronic subdural hematoma, Risk factor, Recurrence, Embolization, Middle meningeal artery

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