Suspected central anticholinergic syndrome in a 6-week-old infant.

A 6-wk-old male infant became unresponsive after an uneventful general anesthetic for hernia repair. His symptoms were consistent with central anticholinergic syndrome. He appeared to awaken after treatment with IV physostigmine in a dose of 0.04 mg/kg. Because of the recurrence of sedation, a second physostigmine infusion was administered, which again led to transient arousal. Finally, the patient awoke spontaneously after 24 h and recovered uneventfully.