Case of malignant hyperthermia in which treatment was carried out smoothly
2007
: We experienced a case of the abortive malignant hyperthermia (MH) that had developed during operation. The patient was a 14-year-old girl, and plastic surgery was scheduled under general anesthesia. Serum creatine kinase (CK) levels were high with 505 IU x l(-1) at the preoperative examination. General anesthesia was induced with propofol and vecuronium bromide, and maintained with sevoflurane. Suddenly, sinus tachycardia of an uncertain cause and a rapid rise of end-tidal carbon dioxide (Et(CO2)) concentration were noticed. Since we suspected MH, we did cooling and hyperventilation and administered dantrolene sodium 2 mg x kg(-1) for the patient. As a result, the highest temperature remained at 37.6 degrees C. Serum CK levels increased most postoperative 18 hours later and it is improved gradually. As sevoflurane, promotes the CICR (calcium-induced calcium release) mechanism, the trigger of this case is probably sevoflurane. As for the symptom that makes us doubt MH first, there is a maked rapid rises of Et(CO2). Therefore, it is important monitor and recognize the first symptom of MH.
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