Clinical case of myocardial infarction with unspecified familial hypercholesterolemia

Familial hypercholesterolemia is a hereditary autosomal dominant disease characterized by a violation of cholesterol metabolism. This nosology was first described in the late 1930s by the Norwegian clinician Karl Moeller, he proposed the idea that hypercholesterolemia and tendon xanthomas are associated with cardiovascular diseases through the inheritance of a single gene. In 1964, two clinical phenotypes of familial hypercholesterolemia were discovered: heterozygous and homozygous, associated with an unfavorable prognosis. To date, it is known that the long-running process of accumulation of low-density lipoproteins in the intima of blood vessels may not have clinical symptoms for many years due to the developed system of collaterals and the absence of hemodynamically significant stenosis. However, without timely diagnosis and appropriate therapy, this condition inevitably leads to the development of a cardiovascular event. The article presents a clinical case demonstrating the development of myocardial infarction in a patient with a late diagnosis of this disease.