Microvascular Decompression

Microvascular decompression is a surgical procedure performed to relieve pressure on a compressed cranial nerve.

Conditions Treated

Microvascular decompression may be used to treat a range of conditions, including:

• Trigeminal neuralgia
• Glossopharyngeal neuralgia
• Hemifacial spasm

Procedure

The procedure is performed under general anaesthesia. A craniotomy is first carried out to create an opening in the skull, allowing the surgeon access to the area where the affected nerve exits the brainstem.

The surgeon then identifies the blood vessel that is compressing the nerve. A small cushion or sponge-like material is carefully placed between the blood vessel and the nerve to relieve the pressure and prevent further contact.

In some cases, if a vein is responsible for the compression, it may be cauterised and repositioned away from the nerve.