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Anaesthetists' nightmare: masseter spasm after induction in an undiagnosed case of myotonia congenita

Looi I 1 , Bakar AAA 2 , Lim CH 2 , Khoo TH 2 , Samuel PE 3

Affiliations 

  • 1 Neurology Unit of Medical Department, Penang Hospital, Pulau Pinang, Malaysia. Email: [email protected]
  • 2 Department of Anaesthesiology, Penang Hospital, Pulau Pinang, Malaysia
  • 3 Penang Adventist Hospital, Pulau Pinang, Malaysia
Med J Malaysia, 2008 Dec;63(5):423-5.
PMID: 19803309

Abstract

We report an undiagnosed case of myotonia congenita in a 24-year-old previously healthy primigravida, who developed life threatening masseter spasm following a standard dose of intravenous suxamethonium for induction of anaesthesia. Neither the patient nor the anaesthetist was aware of the diagnosis before this potentially lethal complication occurred.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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