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Microvascular decompression.

Microvascular decompression.
Microvascular decompression.

Microvascular decompression can relieve pain due to vascular compression of the affected cranial nerve in trigeminal neuralgia, hemifacial spasms, or glossopharyngeal neuralgia. For trigeminal neuralgia, pressure is relieved by placing a sponge is placed between the 5th cranial (trigeminal) nerve and the compressing artery (Jannetta procedure). Usually, this procedure relieves the pain, but in about 15% of patients, pain recurs.