Govind Rajan Robert Victor Richard Kelly Ryan Cockrill Karen Katrivesis Corey Nelson

Keywords: Anesthesia, General / methods, Dantrolene / therapeutic us, Diagnosis, Differential, Humans, Malignant Hyperthermia / diagnosis, Malignant Hyperthermia / etiology, Malignant Hyperthermia / physiopathology, Malignant Hyperthermia / therapy

Abstract

A 42-year-old man with neck squamous cell carcinoma underwent awake fiberoptic intubation and tumor resection under general anesthesia. He developed malignant hyperthermia several hours into the surgical procedure. This case highlights malignant hyperthermia’s (MH) variable time course, pathognomonic signs, and the need for rapid diagnosis and treatment. Early recognition and treatment led to rapid resolution of MH. Ongoing discussion of MH is imperative because this disease is often difficult to diagnose early in its time course and may be fatal if not treated expeditiously.

Abbreviations: DS - Dantrolene sodium; DSIS - dantrolene sodium injectable suspension; GA - general anesthesia; MH - malignant hyperthermia; EtCO2 - end tidal carbon dioxide; RYR1 - Ryanodine Receptor gene 

Key words: Anesthesia, General / methods; Dantrolene / therapeutic use; Diagnosis, Differential; Humans; Malignant Hyperthermia / diagnosis; Malignant Hyperthermia / etiology; Malignant Hyperthermia / physiopathology; Malignant Hyperthermia / therapy

Citation: Victor R, Kelly R, Cockrill R, Katrivesis K, Nelson C, Rajan G. A rare case of late onset malignant hyperthermia. Anaesth. pain intensive care. 2022;26(4):546-550; DOI: 10.35975/apic.v26i4.1963

Received: November 19, 2021; Reviewed: April 25, 2022; Accepted: July 12. 2022

Author Biographies

Govind Rajan

Govind Rajan, The University of California, Irvine Medical Center, 101 The City Dr S, Orange, CA 92868, United States

Robert Victor

Robert Victor, The University of California, Irvine Medical Center, 101 The City Dr S, Orange, CA 92868, United States

Richard Kelly

Richard Kelly, The University of California, Irvine Medical Center, 101 The City Dr S, Orange, CA 92868, United States

Ryan Cockrill

Ryan Cockrill, The University of California, Irvine Medical Center, 101 The City Dr S, Orange, CA 92868, United States

Karen Katrivesis

Karen Katrivesis, The University of California, Irvine Medical Center, 101 The City Dr S, Orange, CA 92868, United States

Corey Nelson

Corey Nelson, The University of California, Irvine Medical Center, 101 The City Dr S, Orange, CA 92868, United States