• Jong Hyun Kim, Taek-Hyun Kwon, Seong-Beom Koh, and Jung Youl Park.
• Department of Neurosurgery, Korea University Guro Hospital, Seoul, Korea.
• Neurosurgery. 2010 May 1;66(5):E1029.

ObjectiveDeep brain stimulation is an alternative treatment for advanced Parkinson's disease. Levodopa medications are usually discontinued the night before surgery to localize the optimal response site to intraoperative macrostimulation. However, abrupt withdrawal of medication may result in side effects. We report a case of parkinsonism-hyperpyrexia syndrome (PHS), a rare complication resulting from discontinuation of antiparkinsonian medication, after a deep brain stimulation (DBS) procedure for bilateral subthalamic-nucleus (STN).Clinical PresentationA 66-year-old woman with an 11-year history of idiopathic Parkinson's disease was admitted for DBS. She had experienced wearing-off symptoms, severe peak-dose dyskinesia, and medication-induced side effects. Antiparkinsonian medication was discontinued 2 days before surgery because of severe drug-related complications. DBS for bilateral STN was performed uneventfully, but the patient was unconscious with fever, tachycardia, and hypertension after surgery.InterventionLevodopa and dopamine agonist replacement by nasogastric tube and hydration were immediately administered with conservative treatment for the hypertension, tachycardia, and fever. The patient's serum creatine kinase level increased to 786 U/L 3 days after the surgery and then decreased gradually as the patient's consciousness improved.ConclusionPhysicians should be aware of the possibility of PHS after a deep brain stimulation procedure. If the patient shows unexplained changes in consciousness with hyperpyrexia after surgery, PHS should be considered and adequate treatment should be given immediately to prevent death.

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