• D Helf, D Schneiderbanger, C K Markus, S Johannsen, and F Schuster.
• Klinik und Poliklinik für Anästhesiologie, Zentrum für Operative Medizin, Universitätsklinikum Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Deutschland.
• Anaesthesist. 2018 Apr 1; 67 (4): 275-279.

AbstractIn a 59-year-old woman with a perforating eyeball injury to the right eye, the emergency physician induced a preclinical general anesthesia with propofol, fentanyl and the depolarizing muscle relaxant succinylcholine. Anesthesia was maintained using propofol and remifentanil infusion throughout the preoperative period and the subsequent surgical procedure. Postoperatively, isolated rhabdomyolysis with an increase in serum creatine kinase to >20,000 U/l was observed. The diagnosis of malignant hyperthermia (MH) susceptibility could be confirmed in the patient 4 months after the acute event by the in vitro contracture test and detection of the MH causative mutation p.Val4849Ile in exon 101 of the ryanodine receptor gene. Due to the variable expression, for a long time MH often remained unrecognized. Warning symptoms, such as unspecific tachycardia or masseter spasm following succinylcholine injection, should alert emergency physicians to include MH susceptibility in the differential diagnostics. With an estimated genetic MH prevalence of 1:2000-3000, individuals with known or so far unrecognized MH disposition are likely to be among patients treated in the preclinical setting. If a person develops MH symptoms after exposure to triggering agents, immediate hospital admission is essential in order to initiate guideline-conform treatment without further delay because preclinically the life-saving causal measures are not possible due to the lack of supply of dantrolene.

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