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Major signs of either right ventricular improvement or further deterioration revealed by echocardiographic monitoring of patients with increased resistance in the pulmonary circulation. RV right ventricle, TR tricuspid valve regurgitation, SV stroke volume, CO cardiac output, LAIRV right ventricular load adaptation index, TAPSE tricuspid annulus peak systolic excursion, FACRV RV fractional area change, RVLS right ventricular longitudinal strain
