Morphofunctional status of cardio-vascular system of rats with congenital hypothyreosis.

Objective: Introduction: There is an increasing number of cases of congenital hypothyroidism. One of the most common complications of hypothyroidism is damage to the cardiovascular system, which in 30-50% of patients leads to the development of arterial hypertension. The aim: studying the features of the ultrastructure of myocardial capillaries in mature rats with hypothyroidism.