Clinical trials

to detect the incidence of CTEPH patients. Primary outcome To predict CETHP in symptomatic patients after pulmonary embolism episode. Secondary outcome: On Echocardiography revealed RV dysfunction which are peak TR Velocity , the RV/LV basal diameter ratio, flattening of the IVS, RV acceleration time and/or midsystolic notching, IVC diameter with decreased inspiratory collapse and RA area.