Table 2.
Echocardiographic assessment for the right heart function recommended by guideline (49).
| Parameters | Abnormal |
|---|---|
| Right heart chamber dimension | |
| Right ventricular basal diameter | >4.2 cm |
| Right ventricular wall thickness | >0.5 cm |
| RVOT diameter (parasternal short axis) | >2.7 cm |
| Right atrial major dimension | >5.3 cm |
| Right atrial minor dimension | >4.4 cm |
| Right atrial end-systolic area | >18 cm2 |
| Right ventricular systolic function | |
| FAC | <35% |
| TAPSE | <1.6 cm |
| Pulsed tissue Doppler peak velocity at the annulus (S′) | <10 cm/s |
| Pulsed Doppler MPI (Tei index) | >0.40 |
| Right ventricular diastolic function | |
| Tricuspid E/A | <0.8 or >2.1 |
| Tricuspid E/E′ | >6 |
| Deceleration time | <120 ms |
| Right heart hemodynamics | |
| IVC diameter | >2.1 cm |
| IVC collapse with sniff | <50% |
| Tricuspid regurgitation velocity | >2.8 m/s |
| Systolic pulmonary artery pressure | >35 mmHg |
RVOT, right ventricular outflow tract; FAC, fractional area change; TAPSE, tricuspid annular plane systolic excursion; MPI, myocardial performance index; IVC, inferior vena cava.