I found this online but, I notice you used malignant HYPOthermia--which I couldn't find.
Malignant hyperthermia is different from what is generally called heat stroke. Malignant hyperthermia is a well documented metabolic disorder of skeletal muscle that can occur subsequent to the inhalant anesthetic agents or sometimes from stress. There may be an inherited predisposition to develop malignant hyperthermia in dogs, man and other animals. Most commonly it is seen in heavily muscled dogs. According to the Merck Veterinary Manual it is abnormal "calcium regulation, glycogenolysis, and contractile protein activity resulting in production of heat, CO2, and lactic acid. Clinical signs include tachycardia (rapid heart rate), tachypnea (rapid breathing), pyrexia (fever), muscle rigidity, and cardiopulmonary failure. Signs develop 5-30 min after exposure to the anesthetic agent. Treatment consists of immediate cessation of anesthesia and hyperventilation with oxygen. IV fluid therapy, corticosteroids, and ice packs are also used. A muscle relaxant, may be given but prognosis is poor in severe cases. Urinary output, serum potassium levels, and cardiac function should be monitored."
Could it have been heat stroke instead? |