Palmaris Brevis Spasm Syndrome

Classification according to ICD-10
G25.3	Myoclonus
ICD-10 online (WHO version 2019)

The palmaris brevis spasm syndrome is a rare benign condition with unwanted and painful muscle contractions ( spasms ) in the palmaris brevis muscle . This leads to spontaneous, non-suppressible, irregular muscle twitching ( myoclonus ).

Overuse due to intensive use of the mouse or keyboard is a possible cause.

There are also familial forms.

diagnosis

The EMG typically shows high-frequency discharges of normal motor units with no evidence of neuropathy or nerve compression.

The affected muscle group can be visualized with high-resolution sonography .

Differential diagnosis

Spasms that occur as part of a nerve compression syndrome are to be distinguished, e.g. B. 8. Cervical Vertebrae or Ulnar Nerve .

therapy

Botulinum toxin can be used to treat persistent spasms .

literature

D. Tarsy, D. Apetaurova, SB Rutkove: Palmaris brevis spasm: An occupational syndrome. In: Neurology . Vol. 62, No. 5, March 2004, p. 838, PMID 15007155 .
R. Liguori, V. Donadio, V. Di Stasi, C. Cianchi, P. Montagna: Palmaris brevis spasm: an occupational syndrome. In: Neurology . Vol. 60, No. 10, May 2003, pp. 1705-1707, PMID 12771275 .

Individual evidence

↑ ^a ^b G. Serratrice, JP Azulay, J. Serratrice, J. Pouget: Palmaris brevis spasm syndrome. In: Journal of Neurology, Neurosurgery, and Psychiatry . Vol. 59, No. 2, August 1995, pp. 182-184, PMID 7629536 , PMC 485997 (free full text).
↑ D. Tarsy, D. Apetaurova, SB Rutkove: Palmaris brevis spasm: An occupational syndrome. In: Neurology . Vol. 62, No. 5, March 2004, p. 838, PMID 15007155 .
↑ PV Eswaradass, R. Kalidoss, B. Ramasamy, G. Gnanashanmugham: Familial palmaris brevis spasm syndrome. In: Annals of Indian Academy of Neurology. Vol. 17, No. 1, January 2014, pp. 141-142, doi: 10.4103 / 0972-2327.128597 , PMID 24753688 , PMC 3992761 (free full text).
^ Z. Arányi, T. Kovács: Palmaris brevis spasm: Identified by high resolution ultrasound and treated by botulinum toxin. In: Journal of the neurological sciences. Vol. 358, No. 1–2, November 2015, pp. 507–508, doi: 10.1016 / j.jns.2015.09.364 , PMID 26428311 .

[Serr-1] G. Serratrice, JP Azulay, J. Serratrice, J. Pouget: Palmaris brevis spasm syndrome. In: Journal of Neurology, Neurosurgery, and Psychiatry . Vol. 59, No. 2, August 1995, pp. 182-184, PMID 7629536 , PMC 485997 (free full text).

[2] D. Tarsy, D. Apetaurova, SB Rutkove: Palmaris brevis spasm: An occupational syndrome. In: Neurology . Vol. 62, No. 5, March 2004, p. 838, PMID 15007155 .

[3] PV Eswaradass, R. Kalidoss, B. Ramasamy, G. Gnanashanmugham: Familial palmaris brevis spasm syndrome. In: Annals of Indian Academy of Neurology. Vol. 17, No. 1, January 2014, pp. 141-142, doi: 10.4103 / 0972-2327.128597 , PMID 24753688 , PMC 3992761 (free full text).

[4] Z. Arányi, T. Kovács: Palmaris brevis spasm: Identified by high resolution ultrasound and treated by botulinum toxin. In: Journal of the neurological sciences. Vol. 358, No. 1–2, November 2015, pp. 507–508, doi: 10.1016 / j.jns.2015.09.364 , PMID 26428311 .