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  • Title: Succinylcholine-induced masseter muscle rigidity during bronchoscopic removal of a tracheal foreign body.
    Author: Maghsoudi B, Khademi B.
    Journal: Int J Pediatr Otorhinolaryngol; 2005 Sep; 69(9):1283-5. PubMed ID: 15893386.
    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.
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