FIELD : medicine.SUBSTANCE : invention relates to medicine, namely to therapy and cardiology. Cardiovascular indices are defined. At the same time, to define the indicated indices, a photoplethysmographic sensor is inserted into a patient in a supine position. On the basis of the obtained data, the values of the indices of stiffness SI and RI reflections are calculated, and also a cardiovascular vascular index is recorded. On the basis of the obtained indicators, the progress of diastolic heart failure is determined.EFFECT : method allows to determine with high accuracy the progress of diastolic dysfunction in hypertensive patients in combination with obesity, diabetes, chronic kidney disease.1 cl, 2 ex, 3 tbl