Middle Meningeal Artery Embolization for Treatment of Chronic Subdural Hematoma

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PI: Jared Knopman, MD

IRB #: 1611017746

In this study, patients suffering from a chronic subdural hematoma that has failed conservative medical management and who are candidates for open surgery to evacuate the clot will be offered middle meningeal embolization as an alternative. In the embolization procedure, which is commonly used to repair other cerebrovascular conditions such as arteriovenous malformations (AVMs) and dural arteriovenous fistulas, a microcatheter is threaded up to the subdural hematoma starting from the femoral artery, accessed by a small incision in the groin. Small particles of polyvinyl alcohol are released through the catheter into the middle meningeal artery to shut down the blood supply to the hematoma.

The purpose of the procedure is to attempt to treat the chronic subdural hematoma in a less invasive manner than open surgery. It is normally performed under sedation, although it may be performed under general anesthesia. It usually requires a one-night hospital stay.

Participants will have follow-up appointments two weeks and six weeks after the procedure.

Trials of procedures being studied for a new application may involve risks that potential patients should discuss with the research doctor and their regular doctor.

For more information, please contact Dr. Knopman at 212-746-5149.

Read Dr. Knopman's blog post about this new procedure