Title: Postanesthetic Equine Myopathy Suggestive of Malignant Hyperthermia: A Case Report
Abstract: Signs of malignant hyperthermia, including progressive increases in PaCO 2 , skin temperature and heart rate, and elevated serum levels of potassium, inorganic phosphate, and creatine kinase, were identified in a halothane‐anesthetized horse. Treatment was discontinuing halothane administration, applying ice and cold fluids, and hyperventilating with 100% oxygen. After an initial recovery, bilateral hindlimb myopathy and pigmenturia developed. The myopathy resolved after treatment with oral dantrolene, IV fluids, and hydrocortisone. Results of caffeine‐halothane challenge, using semimembranosus muscle collected 2 weeks after the episode, were considered within normal limits for horses. The intraoperative abnormalities were evidently predictive of postanesthetic myopathy but the cause in this horse remained unclear.
Publication Year: 1990
Publication Date: 1990-11-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 35
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