title: Reversible parkinsonism following ventriculoperitoneal shunt in a patient with obstructive hydrocephalus secondary to intraventricular neurocysticercosis.
abstract: Parkinsonism with evidence of midbrain dysfunction has been reported in a few patients with aqueductal stenosis after placement of ventriculoperitoneal (VP) shunt. The response to levodopa is variable. We report a patient with neurocysticercosis of the fourth ventricle who developed transient parkinsonism without evidence of midbrain dysfunction after placement of a VP shunt. The frequency of tremor was 5-5.5 Hz. Though the response to levodopa was initially slow, later it was significant, and after 3 months he was asymptomatic without levodopa. The exact pathophysiology of parkinsonism in our patient remained obscure.
authors.affiliation: Department of Neurology, National Institute of Mental Health & Neurosciences, Bangalore, India.
authors.forename: D K
authors.initials: DK
authors.lastname: Prashantha
authors.forename: M
authors.initials: M
authors.lastname: Netravathi
authors.forename: S
authors.initials: S
authors.lastname: Ravishankar
authors.forename: Samhita
authors.initials: S
authors.lastname: Panda
authors.forename: Pramod Kumar
authors.initials: PK
authors.lastname: Pal
mesh_terms: D000328:Adult; D000978:Antiparkinson Agents / Q000627:therapeutic use; D002552:Cerebral Ventricles / Q000473:pathology; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology* / Q000473:pathology; D007980:Levodopa / Q000627:therapeutic use; D008297:Male; D020019:Neurocysticercosis / Q000150:complications* / Q000175:diagnosis; D020734:Parkinsonian Disorders / Q000188:drug therapy / Q000209:etiology* / Q000473:pathology; D017287:Ventriculoperitoneal Shunt / Q000009:adverse effects* / Q000379:methods
chemical_list: D000978:Antiparkinson Agents; D007980:Levodopa