Myxedema is the common clinical condition in which the thyroid gland produces abnormally low levels of hormones. The term is changed interchangeably with hypothyroidism. Myxedema coma is a rare condition in dogs characterized by an under-functioning thyroid gland. Myxedema coma is a severe hypothyroidism leading to decreased mental status, hypothermia, and other symptoms related to slowing of function in multiple organs. It is a medical emergency with a high mortality rate. Affected animals may progress from depressed, to comatose, to dead in relatively short order. Successful treatment is reliant upon early recognition of the disorder and prompt and appropriate medical treatment.
Myxedema coma has been most commonly reported in Doberman pinschers.
Symptoms related to this disorder are
Weakness
Lack of energy
Low body temperature
Low heart rate
Slow breathing rate
Collapse
Myxedema of the face and jowls
Itchy skin or a poor hair coat
Possible bluish-purple gums
Mental dullness/depression
Secondary to severe hypothyroidism
