Table 3.
RV diastolic function
| Diastolic stage | Abnormality threshold | Doppler parameter | n = 1077 (%) |
|---|---|---|---|
| Normal | 320 (30%) | ||
| Grade 1 | TV E/A ratio <0.8 | PW TV inflow (any view) | 168 (15%) |
| TV E/e’ ratio <0.5 | PW TDI TV basal annulus (A4C view) | ||
| Grade 2 | E/A ratio 0.8–2.1 with E/e’ ratio >6 or | PW TV inflow (any view) | 67 (6%) |
| HV diastolic predominance (S < D) | PW TDI TV basal annulus, A4C view | ||
| PW HV, subcostal view | |||
| Grade 3 | TV E/A ratio > 2.1 with TV deceleration time <120 ms or late diastolic antegrade flow in the PA | PW TV inflow | 6 (1%) |
| PW in the pulmonary artery | |||
| Not measurable (NM) | Missing data, poor quality, or severe TR | 516 (48%) |