Trigeminal Neuralgia, Facial Pain & Hemifacial Spasm
Trigeminal neuralgia causes sudden, severe, electric-shock-like pain in the face, often set off by touching the face, eating, talking or brushing the teeth. Hemifacial spasm causes involuntary twitching or tightening of the muscles on one side of the face. In some people, both conditions are linked to a blood vessel pressing on a nerve where it leaves the brainstem; other causes include tumours, multiple sclerosis and other structural problems.
Assessment includes a detailed history, a neurological examination and usually an MRI scan to look for nerve compression or another cause. Many people are first treated with medicines. Where medicines do not control symptoms, cause side effects, or a structural cause is found, other treatments may be discussed, depending on the condition.
- Trigeminal neuralgia
- Other facial pain where a structural or nerve cause is suspected
- Hemifacial spasm
- Glossopharyngeal neuralgia and other selected cranial nerve pain
- Facial pain or spasm caused by a tumour pressing on a nerve
- Review after previous treatment for facial pain or spasm
How it is assessed
Dr Chou asks about the pattern of pain or spasm, what triggers it and how it has responded to treatment so far. MRI, sometimes with detailed views of the nerves and nearby blood vessels, helps show whether a vessel or another lesion is pressing on the nerve.
Treatment options
Depending on the condition and how it has responded to medicines, options may include continuing or adjusting medicines, microvascular decompression surgery for selected patients, percutaneous trigeminal treatments, stereotactic radiosurgery arranged with partner centres, or injections to ease facial spasm.
