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Updated: Jul 26, 2026

Protocol for Long Duration Whole Body Hyperthermia in Mice
Published on: August 25, 2012
No response to trigger agents in a malignant hyperthermia-susceptible patient
B A Claxton1, M H Cross, P M Hopkins
1Department of Anaesthesia, St James's University Hospital, Beckett Street, Leeds LS9 7TF, UK.
Abstract:
Malignant hyperthermia susceptibility is an inherited disorder, where a life-threatening condition can result from exposure to a trigger agent or agents. Succinylcholine and volatile anaesthetic agents are well established to be trigger agents in anaesthetic practice. We describe a case of a previously investigated malignant hyperthermia-susceptible patient who did not declare his status and was exposed to both succinylcholine and isoflurane, without any detectable reaction. Possible explanations for the lack of reaction include a subnormal temperature when exposed to isoflurane, and a significant interval between exposure to succinylcholine and isoflurane. Absence of a reaction to trigger agents on this occasion is not thought to indicate an incorrect diagnosis and labelling.
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