Echocardiographic features supporting pulmonary hypertension
Right atrial dilation (area > 18 cm2) |
Elevated right atrial pressure based on inferior vena cava (IVC) assessment (IVC > 21 mm and collapses < 50% with inspiratory sniff) |
Ratio of right ventricle to left ventricle basal diameter > 1 |
Interventricular septal flattening or bowing towards the left ventricle |
A “mid-systolic notch” across the right ventricular outflow tract |
Reduced right ventricular outflow Doppler acceleration time < 105 msec |
Increased early diastolic pulmonary regurgitation velocity > 2.2 m/sec |
Pulmonary artery diameter > 25 mm |
Based on information in Galiè et al, reference 1.