This procedure is usually performed under general anesthesia followed by an overnight stay in the hospital.
The surgeon advances a large-caliber needle to the area of the Gasserian ganglion and confirms the correct positioning of the needle.
Once in the correct position a small thin catheter with a balloon on the end is threaded through the needle. The needle is inflated with enough pressure to damage the nerve and block the pain signals. Pain relief is almost immediate. Some facial numbness may occur and temporary weakness in the muscles for chewing may be experienced.
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