title: Succinylcholine-induced masseter muscle rigidity during bronchoscopic removal of a tracheal foreign body.
abstract: Masseter muscle rigidity during general anesthesia is considered an early warning sign of a possible episode of malignant hyperthermia. The decision whether to continue or discontinue the procedure depends on the urgency of the surgery and severity of masseter muscle rigidity. Here, we describe a case of severe masseter muscle rigidity (jaw of steel) after succinylcholine (Sch) administration during general anesthetic management for rigid bronchoscopic removal of a tracheal foreign body. Anesthesia was continued uneventfully with propofol infusion while all facilities were available to detect and treat malignant hyperthermia.
authors.affiliation: Department of Anesthesia, Shahid Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran. maghsodb@sums.ac.ir
authors.forename: Behzad
authors.initials: B
authors.lastname: Maghsoudi
authors.forename: Bijan
authors.initials: B
authors.lastname: Khademi
mesh_terms: D000768:Anesthesia, General / Q000009:adverse effects / Q000379:methods; D001999:Bronchoscopy; D002675:Child, Preschool; D004630:Emergencies; D005260:Female; D005547:Foreign Bodies / Q000601:surgery*; D006801:Humans; D008305:Malignant Hyperthermia / Q000209:etiology / Q000517:prevention & control; D008406:Masseter Muscle; D009127:Muscle Rigidity / Q000139:chemically induced* / Q000150:complications / Q000628:therapy; D009467:Neuromuscular Depolarizing Agents / Q000009:adverse effects*; D013390:Succinylcholine / Q000009:adverse effects*; D014132:Trachea; D016896:Treatment Outcome
chemical_list: D009467:Neuromuscular Depolarizing Agents; D013390:Succinylcholine