RT Journal Article SR Electronic T1 Treatment of accidental high dose intraventricular mezlocillin application by cerebrospinal fluid exchange JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 379 OP 381 DO 10.1136/jnnp.64.3.379 VO 64 IS 3 A1 Rudolf A Kristof A1 Hans Clusmann A1 Walter Koehler A1 Klaus B Fink A1 Johannes Schramm YR 1998 UL http://jnnp.bmj.com/content/64/3/379.abstract AB An accidental high dose of intraventricular mezlocillin was given during antibiotic treatment for pneumonia in a patient admitted because of severe traumatic brain injury and occlusive hydrocephalus. Because of serial epileptic seizures not responsive to antiepileptic drug treatment, CSF exchange was performed. The CSF was drained through a ventricular catheter, while mock CSF was infused into the lumbar subarachnoid space. The patient soon recovered to her clinical status previous to intraventricular mezlocillin application. Side effects of CSF exchange were not seen. Under continued antiepileptic medication no more seizures occurred. It is concluded that high doses of intraventricular mezlocillin have proconvulsive effects. In this patient CSF exchange was a suitable means of preventing putatively permanent impairment of brain function caused by serial epileptic seizures due to intraventricular mezlocillin application.