Exercise coronary Doppler in assessment of efficiency physical rehabilitation after percutaneous coronary interventions

Abstract

The exercise blood-groove measurement in the left descending artery, offered as a method of assessment of efficiency physical rehabilitation after low-invasive coronary surgery.
Examined 49 men from whom 22 persons underwent recovery treatment after percutaneous coronary interventions (PCI). Bicycle stressechocardiography, complemented with measurement of a blood-groove in LDA, was carried out in 3 months after coronary surgery and in 3–4 months after the long training procedures (special walking routes, Scandinavian walking, walking on the stairs, gymnastics). Peak speed of a diastolic stream (Vmax-LDA) was registered in a point of transition of a vessel to a forward interventricular furrow, initially and within the first minute of end of loading at the time of horizontal moving of the patient to the left side position. The feasibility of a method appeared equal 73%, initial Vmax-LDA at the both groups was 40 cm/s [38-43], exercise Vmax-LDA at the patients after PCI was 81 cm/s [76-84], and in group of control – 92 cm/s [85-97], a gain of 97% and 124%, respectively. At repeated testing at сonvalesсets after PCI for 15% the tolerance to physical activity increased, and exercise blood-groove measurement in the left descending artery increased by 21%. In the course of control testing initial Vmax-LDA was to 44 cm/s [40-47], and at peak of exercise – 94 cm/s [90-100], the growth of Vmax-LDA was 118% [114-122] and was analogous to group of control.
Thus, the long training procedures of physical rehabilitation are increased exercise – induced coronary blood-groove not less than by 15–20%.