Development of malignant hyperthermia obscured by cardiopulmonary bypass

Abstract
An episode of malignant hyperthermia occurring in a two-year-old child undergoing cardiac surgery is re-ported. The coincidental usage of hypothermic cardio-pulmonary bypass obscured the classical presenting signs and symptoms of the syndrome. Once the clinical diagnosis was confirmed, rapid reversal was achieved with the administration ofdantrolene sodium. Un épisode d’hyperthermie maligne ayant survenu chez un enfant de 2 ans subissant une chirurgie cardiaque est rapporté. L’utilisation de l’hypothermie lors de la circu-lation extra-corporelle a obscursi les signes classiques ainsi que les symptômes annonçants ce syndrome. Lorsque le diagnostic clinique a ete confirme, le retablis-sement rapide a été acquis avec l’administration du dantrolène.

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