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Magnetic Resonance-Guided High Intensity Focused Ultrasound Generated Hyperthermia: A Feasible Treatment Method in a Murine Rhabdomyosarcoma Model
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Malignant hyperthermia when dantrolene is not readily available.

Xiaodan Gong1,2

  • 1Department of Cardiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charité University Medicine, Campus Virchow Klinikum, Augustenburger Platz 1, 13353, Berlin, Germany. xiaodan.gong@charite.de.

BMC Anesthesiology
|April 17, 2021
PubMed
Summary

Malignant hyperthermia (MH) is a rare, life-threatening disorder. In regions without dantrolene, early MH detection and rapid treatment are vital for patient survival.

Keywords:
DantroleneEnzymeMalignant hyperthermiaMortalityTreatment

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Area of Science:

  • Anesthesiology
  • Pharmacogenetics
  • Critical Care Medicine

Background:

  • Malignant hyperthermia (MH) is a rare, life-threatening pharmacogenetic muscle disorder.
  • MH is triggered by anesthetics in susceptible individuals.
  • Dantrolene, a key treatment, is unavailable in many countries, including China.

Purpose of the Study:

  • To characterize malignant hyperthermia (MH) in the context of limited dantrolene availability.
  • To identify factors associated with survival and mortality in MH cases in China.

Main Methods:

  • Analysis of 92 malignant hyperthermia (MH) cases reported in Chinese databases (1985-2020).
  • Inclusion criteria focused on anesthesia-related MH episodes.
  • Statistical analysis (t-test, chi-squared) compared survived and deceased cases.

Main Results:

  • Death cases showed higher CO2 levels, temperature, and potassium, with lower pH and more coagulation disorders.
  • Treatments like furosemide, mannitol, and blood purification were associated with better outcomes.
  • Congenital diseases and pre-anesthesia abnormalities were noted in a significant proportion of cases.

Conclusions:

  • Early warning, accurate diagnosis, and prompt, effective therapies are critical for MH patient survival where dantrolene is unavailable.
  • Understanding MH characteristics in resource-limited settings is essential for improving patient outcomes.