Abortive Malignant Hyperthermia; A Report of Three Cases.:A Report of Three Cases

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Three patients had an abortive type of malignant hyperthermia (MH) caused by general anesthesia: a 28-year-old male whose planned tonsillectomy was abandoned, a 43-year-old male whose tympanoplasty was performed and a 41-year-old male whose microlaryngosurgery was also performed. All three were given SCC and intubated. MH was suspected from the port-wine-colored urine and muscle pain. They were diagnosed as having abortive type MH because there was no high fever and they recovered after intravenous infusions.We consider that the abortive type without a high fever is more frequent than the fulminant type and that the cause of both types of MH is at least destructive muscle disturbance caused by general anesthesia. So we propose a new nomenclature "post-anesthtic myopathy (PAM)" which is divided into two types, a fulminant type, so-called "malignant hyperthermia", and a mild type.
耳鼻咽喉科臨床学会の論文