Isolated high-frequency jaw tremor relieved by botulinum toxin injections.

Abstract

Jaw tremor can be seen as a component of various neurological disorders such as essential tremor, Parkinson's disease, dystonia, branchial myoclonus, hereditary geniospasm, task-specific tremor, and Whipple's disease, as well as in normal situations such as shivering, and subclinical physiological jaw tremor. In most of these conditions, the jaw tremor is usually associated with tremor or other abnormal involuntary movements affecting additional body parts, and its frequency is lower than 12 Hz. Schrag and colleagues reported a patient with a high-frequency idiopathic jaw tremor, and they speculated it could be related to orthostatic tremor affecting the masseter muscles. We encountered a similar patient with intermittent rapid focal jaw tremor that was successfully treated with botulinum toxin injections to the masseters.

• Authors: Pedro Gonzalez-Alegre, Praful Kelkar, Robert L Rodnitzky
• Journal: Movement disorders : official journal of the Movement Disorder Society (Mov Disord) Vol. 21 Issue 7 Pg. 1049-50 (Jul 2006) ISSN: 0885-3185 [Print] United States
• PMID: 16602105 (Publication Type: Case Reports, Journal Article)
• Copyright: (c) 2006 Movement Disorder Society.

Chemical References

• Botulinum Toxins, Type A

Topics

• Adult
• Botulinum Toxins, Type A (therapeutic use)
• Electromyography (drug effects)
• Female
• Humans
• Injections, Intramuscular
• Jaw Diseases (diagnosis, drug therapy, physiopathology)
• Masseter Muscle (drug effects, physiopathology)
• Tremor (diagnosis, drug therapy, physiopathology)
• Voice Disorders (diagnosis, drug therapy, physiopathology)