AORTIC STENOSIS, DIAGNOSIS, TREATMENT TACTICS. WHAT IS IMPORTANT FOR THE THERAPIST TO KNOW?

Abstract

Aortic stenosis is the most common manifestation of valve heart disease, which requires surgical or endovascular intervention. The prevalence of degenerative aortic stenosis is increasing due to an aging population. The clinical course of aortic stenosis is characterized by a long-existing asymptomatic period. The progressive calcification of the valve cusps leads to the formation of a pressure gradient in the aorta, hemodynamic overload of the left ventricle, the development of myocardial hypertrophy, which contributes to the violation of diastolic function of the left ventricle. After the onset of symptoms of aortic stenosis, the two-year survival in patients who do not undergo surgical correction does not exceed 50 %. The Recommendations of the European Association of Cardiology and the European Association of Cardiothoracic Surgeons for the treatment of patients with valvular heart disease in 2017 discuss aspects of the diagnosis of aortic stenosis and the principles of choosing tactics for managing patients using surgical or catheter treatment methods. Depending on the severity of aortic stenosis, its clinical manifestations, age of patients, and associated pathology, surgical replacement of the aortic valve or its transcatheter implantation may be recommended. The use of drug therapy for aortic stenosis did not show the possibility of improving the prognosis. Drug therapy is used to treat heart failure, hypertension. Important tasks are the control of sinus rhythm and the prevention of thromboembolic complications.