Microvascular Decompression

Microvascular decompression is a procedure done to treat conditions such as trigeminal neuralgia, hemifacial spasm, and glossopharyngeal neuralgia. These conditions are all caused by the “misfiring” of one of the nerves that comes from the base of the brain. The misfiring is commonly caused by a blood vessel compressing the nerve; but sometimes is a problem with the nerve itself.

Microvascular decompression is done under general anesthesia. An incision is made behind the ear on the affected side, and a small area of bone is drilled away to allow access to the base of the brain. The nerve in question is found and treated. This can involve padding the nerve to protect it from nearby blood vessels, cutting a portion of the nerve to alleviate symptoms, or something else, depending on the situation.

The coverings of the brain (dura) are sewn back together and a small amount of cement is placed to fill the hole in the skull. The skin may be closed with sutures or staples.

Most patients undergoing a microvascular decompression spend 1-3 nights in the hospital. Individual cases may vary; expectations and specifics about your case should be discussed in detail with your surgeon.