A computer program using fuzzy logic templates has been developed to enhance the diagnosis of malignant hyperpyrexia. When tested, retrospectively, against the physiological changes that occurred during the onset of a bona fide malignant hyperpyrexia episode it made the diagnosis about 10 minutes before the anaesthetist. When tested against the changes associated with laparoscopic surgery, which has certain similarities, the diagnosis of malignant hyperpyrexia was very transient. The use of this program may assist the anaesthetist in the diagnosis of this rare event.
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