Post-Operative Malignant Hyperthermia in a Child after Colon Interposition

Sevtap Hekimoğlu Şahin1, Mustafa İnan2, Burhan Aksu2

  • 1Department of Anaesthesiology and Reanimation, Trakya University Faculty of Medicine, Edirne, Turkey.

Insights

Malignant hyperthermia (MH), a rare anesthesia complication, occurred late in a 2-year-old boy after esophageal replacement surgery. Despite dantrolene treatment, the patient experienced fatal cardiopulmonary arrest, highlighting post-operative MH risks.

Area of Science:

  • Anesthesiology
  • Pediatric Surgery
  • Critical Care Medicine

Background:

  • Malignant hyperthermia (MH) is a rare, life-threatening pharmacogenetic disorder of skeletal muscle.
  • It is a known complication of volatile anesthetic agents and succinylcholine.
  • Late-onset MH, particularly post-operatively, is less common but remains a critical concern.

Observation:

  • A 2-year-old boy underwent colon interposition for esophageal replacement under sevoflurane anesthesia.
  • The patient developed late-onset malignant hyperthermia post-operatively.
  • Initial treatment included intravenous dantrolene sodium, cooling, and controlled ventilation.

Findings:

  • Despite aggressive management, the patient progressed to cardiopulmonary arrest 21 hours after surgery.
  • The case demonstrates a fatal outcome in a pediatric patient with late-onset MH.
  • Ischemia-reperfusion injury associated with major surgery may be a contributing factor.

Implications:

  • This case underscores the importance of recognizing and managing post-operative malignant hyperthermia, even in late-onset presentations.
  • Surgeons and anesthesiologists should consider the potential for MH in patients undergoing extensive procedures with potential for ischemia-reperfusion.
  • Vigilance and prompt treatment are crucial for improving outcomes in malignant hyperthermia events.

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