Table 1 “Other” echocardiographic signs of PH, beyond tricuspid regurgitation velocity
From: The investigation and diagnosis of pulmonary hypertension in adults with congenital heart disease
| Ventricles | RV/LV basaldiameter ratio>1.0 | Flattening of the IVS (LV eccentricity index >1.1 in systole and/or diastole) |
|---|---|---|
| Pulmonary artery | RV outflow Doppler acceleration time < 105 ms and/or mid-systolic notching | Early diastolic PR velocity > 2.2 m/s AND PA dimension > 25 mm |
| Inferior vena cava and right atrium | IVC dimension >21 mm with decreased inspiratory collapse (<50% with a sniff or <20% with quiet inspiration) | RA area (end-systole) > 18 cm2 |