REMODELING OF THE RIGHT HEART IN PATIENTS WITH CHRONIC THROMBOEMBOLIC PULMONARY HYPERTENSION ACCORDING TO ECHOCARDIOGRAPHY AFTER BALLOON ANGIOPLASTY OF THE BRANCHES OF THE PULMONARY ARTERIES

Sagymbaev Baizak A., Vaneeva Anna M., Petrosyan Karen V.

This article presents the results of a retrospective-prospective study aimed at assessing the reverse remodeling of the right heart chambers in patients with chronic thromboembolic pulmonary hypertension (CTEPH) following balloon pulmonary angioplasty (BPA). The study included echocardiographic data from 146 patients aged 27 to 80 years during the long-term follow-up period after the intervention (observation up to 55.2 months). The obtained results demonstrated significant improvement in right ventricular (RV) systolic function (increase in RV FAC from 32% to 37%, TAPSE from 13 to 18 mm) and reduction of its dilation (decrease in RV end-diastolic dimension from 4.8 to 4.1 cm). A reduction in right atrial size and restoration of left ventricular geometry due to normalization of interventricular septal position were also noted. The results confirm that the assessment of changes in right heart geometry using echocardiography should be an integral part of monitoring the effectiveness of BPA in patients with CTEPH.

Keywords:right heart geometry, chronic thromboembolic pulmonary hypertension, balloon pulmonary angioplasty, ultrasound imaging.