Middle Meningeal Artery Embolization With Liquid Embolic Agent for Treatment of Chronic Subdural Hematoma

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    Mashhad University of Medical Sciences
Updated on 19 January 2022


The study evaluates the clinical and imaging outcome of middle meningeal artery (MMA) embolization with liquid embolic agent for treatment of chronic subdural hematoma (CSDH)


This study is a prospective one arm trial designed to assess the safety and efficacy of MMA embolization with liquid embolic agents (onyx/squid/Phil) as the main treatment of CSDH.

The subjects are enrolled in the study according to inclusion and exclusion criteria. Imaging and clinical presentations of patients are recorded. Within 48 hours of embolization, patients are assessed with clinical examination and with a brain CT scan to evaluate in any change in their symptoms and CSDH volume. 2-4 weeks after embolization, patients are evaluated in clinic for any change in their symptoms and signs. 60 days after embolization patients are examined clinically and are assessed for SDH volume change in CT scan and MRI.

If there is any significant increase in CSDH volume or any deterioration of patient, evacuation of hematoma is considered.

MMA embolization is performed under general anesthesia using biplane or monoplane angiography. Femoral or radial accesses are used. Guiding catheter is advanced into external carotid artery in corresponding side. The corresponding MMA is catheterized distally by micro-catheter and is embolized by liquid embolic agents. Patients are discharge next day if they are stable.

Condition Chronic subdural hematoma
Treatment Embolization of MMA
Clinical Study IdentifierNCT04574843
SponsorMashhad University of Medical Sciences
Last Modified on19 January 2022

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