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Succinylcholine-induced masseter muscle rigidity during bronchoscopic removal of a tracheal foreign body.
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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