Managing Dystonia in Partington Syndrome.

BACKGROUND

Bilateral focal hand dystonia is an almost pathognomonic sign of Partington syndrome, frequently accompanied by intellectual disability and oromotor dyspraxia. However, a few studies have focused on the treatment of this focal dystonia, making patient management uncertain.

CASES: We present 2 cases of Partington syndrome featuring Aristaless-related homeobox (ARX) gene mutations, hand dystonia, and other clinical signs. Various drug treatments were attempted, including levodopa (l-dopa), trihexyphenidyl, tetrabenazine, and benzodiazepines, as well as botulinum toxin. Additionally, a blinded dystonia protocol was used to assess l-dopa's efficacy in 1 patient, which confirmed only mild benefit.

LITERATURE REVIEW: Through a systematic review of the literature, we found that only l-dopa and baclofen might result in mild improvement, whereas propranolol, gabapentin, and haloperidol were reported as ineffective. The descriptions in those studies were, however, imprecise and the improvement rather mild, hindering definitive conclusions about their effectiveness.

CONCLUSIONS

Treatment options in Partington syndrome-associated dystonia remain elusive. Further research and additional case studies are needed to fully characterize the clinical features of Partington syndrome and to identify effective treatments.