Malignant hyperthermia, also known as canine stress syndrome, is a potentially fatal genetic disorder. The clinical signs of malignant hyperthermia are extreme muscle contractions, increased heart rate and fever. These symptoms are triggered by certain anaesthetics such as halothane, but also by intense exercise and certain foods. Malignant hyperthermia can be tested for in any breed, but is most commonly found in the breeds listed below.

Transmission

Autosomal dominant

Breed

Dobermann, English Springer Spaniel, Greyhound, Irish Wolfhound, Rough Collie, Border Collie, German Shepherd