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Learn about malignant hyperthermia, a life-threatening hypermetabolic syndrome triggered by certain anesthetic agents including halothane and succinylcholine. Explore the pathophysiology involving ryanodine receptors, dihydropyridine receptors, and calcium channels that lead to uncontrolled muscle contractions and hyperthermia. Understand the clinical presentation including tachycardia, elevated end-tidal CO2, fever, metabolic acidosis, hypercalcemia, and myoglobinuria. Master the emergency management protocols including immediate discontinuation of triggering agents, administration of dantrolene, aggressive cooling measures, and supportive care. Examine the role of creatine phosphokinase (CPK) levels in diagnosis and monitoring. Study the anesthetic considerations for patients with known or suspected susceptibility to malignant hyperthermia, including safe anesthetic alternatives and preoperative planning. Review the importance of early recognition and rapid intervention in preventing fatal outcomes in this anesthetic emergency.
