Malignant Hyperthermia Syndrome: A Clinical Case Report
Isabel Sánchez-Molina Acosta1, Guillermo Velasco de Cos2, Matilde Toval Fernández2
1Hospital Comarcal de Laredo, Laredo, Cantabria, Spain.
EJIFCC
|August 23, 2021
Summary
Malignant hyperthermia is a serious genetic disorder triggered by anesthesia, causing severe muscle symptoms. Prompt treatment with dantrolene sodium significantly reduces mortality risk.
Area of Science:
- Anesthesiology
- Pharmacogenetics
- Critical Care Medicine
Background:
- Malignant hyperthermia (MH) is a pharmacogenetic disorder.
- It presents as a hypercatabolic skeletal muscle syndrome.
- MH is triggered by volatile anesthetics or depolarizing muscle relaxants.
Observation:
- The patient experienced tachycardia, hyperthermia, acidosis, muscle rigidity, and hyperkalemia post-surgery.
- Clinical signs included hypercapnia, rhabdomyolysis, arrhythmia, and renal failure.
- The patient required Intensive Care Unit admission for management.
Findings:
- Malignant hyperthermia (MH) has a high mortality rate (80%) without specific treatment.
- Dantrolene sodium is the definitive treatment for MH.
- Treatment with dantrolene sodium reduces mortality to 5%.
Implications:
- Early recognition and treatment of MH are crucial for patient survival.
- This case highlights the importance of anesthetic vigilance in susceptible patients.
- Understanding MH pathophysiology aids in developing safer anesthetic protocols.
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