• Hyun Jin Woo, Seong Hyun Park, and Sung Kyoo Hwang.
• Department of Neurosurgery, Kyungpook National University Hospital, Daegu, Korea.
• Pediatr Neurosurg. 2010 Jan 1;46(4):299-302.

AbstractParoxysmal sympathetic storm (PSS), or diencephalic seizure, usually appears in patients with severe traumatic brain injury and is characterized by various sympathetic symptoms. The physiological effects of this syndrome are not well studied. The authors monitored intracranial pressure (ICP) in a patient with PSS and reviewed its impact on the physiology and management of the syndrome. A 12-year-old male patient was involved in a traffic accident. Upon arrival at the emergency room, his Glasgow Coma Scale score was 5 and he showed decerebration. A brain CT showed an intracerebral hematoma in the right basal ganglia, at which point craniotomy and removal of the hematoma were performed. Continuous intracranial monitoring was performed using the fiber-optic intraparenchymal method. Beginning the day after the trauma, the patient began exhibiting sympathetic symptoms including intermittent episodes of fever, tachycardia, increased blood pressure, tachypnea, diaphoresis and decerebrate rigidity. These episodes were accompanied by ICP elevation of greater than 20 mm Hg. ICP was decreased during hyperventilation, and the episodic symptoms subsided as ICP normalized. PaCO(2) was periodically altered in association with hyperventilation. Electroencephalogram did not show epileptiform discharges, and the sympathetic spells were aborted by continuous intravenous midazolam infusion. The authors report on a pattern of ICP monitoring in association with PSS. Traumatic PSS should be recognized in the appropriate setting to prevent secondary brain damage.Copyright © 2010 S. Karger AG, Basel.

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