Background Poststroke oromandibular dystonia (OMD) is a rare and challenging to treat form of dystonia. Botulinum toxin A (BoNT‐A) is a standard treatment in other etiologies of OMD, but literature concerning a long‐term potential beneficial role in posthemorrhagic stroke OMD is scarce. Cases We present a case series of three patients with acute onset of multiple cranial nerve impairment and contralateral hemiparesis consequent to pontine hemorrhage. After a few months, all patients developed jaw‐closing OMD (JC‐OMD), conditioning a reduced mouth opening. Ultrasound‐guided BoNT‐A administration was started, and after 4 weeks, every patient showed clinical improvement. The results were maintained up to 10 years of follow‐up, and no adverse event was reported. Conclusions Poststroke OMD is an underestimated condition. Our cases provided data of safety and efficacy of BoNT‐A treatment up to 10 years of follow‐up. Further studies are warranted to establish etiopathological mechanisms and standardized treatments for poststroke JC‐OMD.
Brevi et al. (Thu,) studied this question.