Headaches: Cluster - Surgery

Percutaneous Retrogasserian Glycerol Rhizolysis. Percutaneous retrogasserian glycerol rhizolysis (PRGR) is a less invasive technique than PRFR and has fewer complications. It involves injections of glycerol to block the facial nerves that cause the pain. In one study, 83% of patients reported immediate relief after one or two injections. Cluster headaches recurred, however, in about 40% of the patients.

Microvascular Decompression of the Trigeminal Nerve. Microvascular decompression frees the trigeminal nerve from any blood vessels that are pressing against it. In one study, over 73% of patients reported at least 50% relief. Half of these patients reported 90% relief but the level of benefit fell to less than 50% over time. Repeat procedures are rarely successful. The procedure is risky, and possible complications include nerve and blood vessel injury and spinal fluid leakage. It does not have the common nerve damage effects in the face that PRFR does, however.

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