Trigeminal neuralgia (tic douloureux)

Trigeminal neuralgia is a disorder characterized by paroxysmal (short, frequent and gamma_knife_trigeminal_neuralgiarecurring ) facial pain. The trigeminal nerve is the fifth cranial nerve that controls the sensory nerves in the forehead, face, chin and jaw.

Symptoms are typically treated with a pain relieving anticonvulsant drug such as carbamazepine. Surgical treatments may be undertaken for individuals experiencing symptoms that are difficult to manage or those individuals who cannot tolerate the medications.

Surgical treatments for trigeminal neualgia are:

  • neurectomy of trigeminal-nerve branches outside the skull
  • percutaneous ablation (surgical removal of the neural tissue) that creates trigeminal-nerve or trigeminal-ganglion lesions with heat (radiofrequency thermal rhizotomy)
  • injection of glycerol into the trigeminal cistern (retrogasserian glycerol rhizotomy) resulting in chemical ablasion of the neural tissue
  • physical compression (trigeminal-ganglion balloon microcompression

The above procedure all cause trauma to the trigeminal nerve, nerve ganglion or neural root interupting pain signals the faulty nerve was sending to the brain to cause the facial pain.

Barker, Fred, G, Bissonette, David, J, Dong Jho, Hae, Janetta, Peter, J, and Larkins, Mark, V. 1996. The Long term outcome of microvascular decompression surgery for trigeminal neuralgia. The New England Journal of Medicine. 334:1077-1084.

Lunsford, Dade, L and Kondziolka, Douglas. 2005. Pericutaneous retrogasserian glycerol rhizotomy for trigeninalneuralgia: Technique and expectations. Neurological Focus. 18 (1)

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: