[Clinical and morphological findings in a case of malignant hyperthermia (author's transl)].

A 32-year-old man survived malignant hyperthermia which developed in conjunction with laparotomy. Muscles biopsy indicated acute necrosis of muscle fibers as well as changes consistent with a latent myopathy. Clinical, laboratory and morphological studies of the relatives revealed familial subclinical myopathy. The hyperthermia resulting from the anaesthesia is thought to be casually related to the myopathy, and members of the family have been warned against this potential risk.