Hypersensitivity reactions to Succinylcholine and Fentanyl during anesthesia – Unpredicatbale reaction case report

Abstract

A 59-year-old woman was scheduled for cholecystectomy. She had no history of allergies and her previous spinal anesthesia was unremarkable. She developed cardiac arrest after receiving midazolam, fentanyl, ketamine and succinylcholine. Ventricular fibrillation developed but successfully converted. She made an uneventful recovery. Skin pricks testing 10 months later demonstrated positive reactions to both succinylcholine and fentanyl. We concluded these two drugs caused the reactions.