Assessment of the contour analysis of the photoplethysmogram in healthy individuals of young age

Introduction. The pathogenesis of many diseases of the internal organs is based on the microcirculation disturbance. The most preferable method for screening vascular diagnostics is photoplethysmography - a simple, non-invasive, painless and reliable rapid test method based on the evaluation of blood volume in the microvascular bed.

Aim. To evaluate the indices of the contour analysis of photoplethysmogram in healthy individuals of young age.

Materials and methods. The study included 39 healthy individuals aged 20 to 30 years. To analyze the condition of the vascular system, a photoplethysmogram was recorded using “AngioScan-01 M” diagnostic complex. The average values of the pulse rate, the arterial stiffness index, the age of the vascular wall, the stress index, the oxygen saturation of arterial blood, nd the form of pulse wave were measured.

Results. In 5% of the examined, the arterial stiffness index exceeded normal values, which may indicate the beginning of structural changes in the artery wall; in 21% of healthy volunteers, the A-type of pulse curve was revealed, which is more characteristic of elderly people, and the detection of this type of curve in young people indicates an increase in the stiffness of great vessels; 33% of the examined showed a decrease in the degree of oxygen saturation of arterial blood.

Conclusion. The performance a contour analysis of photoplethysmogram in healthy individuals on an outpatient basis is the most preferable method for screening diagnosis of cardiovascular and bronchopulmonary pathology in the early stages of the development of pathological conditions. In addition, a particular emphasis should be given to the study of arterial stiffness index and the type of pulse curve, the change of which may indicate the presence of structural changes in the arterial wall even at the pre-clinical stage of development of bronchopulmonary and cardiovascular pathology.

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