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[Pharmacological Treatment of Malignant Hyperthermia: Update 2019]

[Pharmacological Treatment of Malignant Hyperthermia: Update 2019]

Frank Schuster, Stephan Johannsen

Anasthesiol Intensivmed Notfallmed Schmerzther. 2019 Sep;54(9):549-558.

PMID: 31525788

Abstract:

Malignant hyperthermia (MH) is a pharmacogenetic disorder of skeletal muscle presenting as a hypermetabolic response to potent volatile anesthetics such as sevoflurane, desflurane, isoflurane and the depolarizing muscle relaxant succinylcholine. Following introduction of the hydantoin derivative dantrolene, the previously high mortality of fulminant MH episodes could be reduced from > 80% to less than 10%. For treatment of MH an initial intravenous bolus of 2.5 mg/kg dantrolene based on the actual body weight should be applied. If symptoms are not improving after the initial dose, up to 10 mg/kg dantrolene can be necessary within the first 24 h. In facilities where MH triggering anesthetics and depolarizing muscle relaxants are administered, at least 36 - 48 vials of dantrolene 20 mg should be stocked according to the recent German S1 guideline on MH. If none of these agents are ever used in the facility, the stockage of dantrolene is dispensable. Since dantrolene is not easily dissoluble, preparation requires time and manpower. Due to its pharmacological characteristics, ryanodex, a modern nanocrystalline dantrolene sodium suspension, might be a promising alternative in the treatment of MH.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP7261974	Dantrolene		7261-97-4	Price

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