title: Acute hemiballismus after carotid endarterectomy--a case report.
abstract: A 72-year-old woman who experienced a postoperative stroke after a carotid endarterectomy with the presenting symptom of hemiballismus is described. This unusual presentation was likely the result of a hypotensive episode coupled with a predisposing anatomic variant in the circle of Willis, which compromised blood flow in the posterior cerebral circulation. She responded well to treatment with haloperidol with complete resolution of hemiballistic movements.
authors.affiliation: Department of Surgery, Thoracic and Vascular Surgery Section, Mount Sinai Medical Center of Greater Miami, 4300 Alton Road, Miami Beach, FL 33140, USA.
authors.forename: J C
authors.initials: JC
authors.lastname: Paramo
authors.forename: D
authors.initials: D
authors.lastname: Carey
authors.forename: M
authors.initials: M
authors.lastname: Sivina
mesh_terms: D000208:Acute Disease; D000368:Aged; D016893:Carotid Stenosis / Q000150:complications / Q000601:surgery; D020820:Dyskinesias / Q000209:etiology*; D016894:Endarterectomy, Carotid / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology