It makes the heart muscle thicken, resulting in blood being pumped more forcefully. This increase in cardiac output of blood results in hypertension. Hyperthyroidism is another cause of heart disease that may cause hypertension. The thyroid is a gland located in the neck. It plays a very important role in regulating the body's rate of metabolism.
Hyperthyroidism is a disorder characterized by the overproduction of thyroid hormone.
When excessive amounts of thyroid hormone are in the circulation, the body's metabolism speeds up greatly. Many organs are affected by this disease, including the heart. The heart is stimulated to pump faster and more forcefully, much like hypertrophic cardiomyopathy. This results in a greater output of blood and high blood pressure. Hyperthyroidism is a fairly common disease of older cats.