Table 2 Results in 17 ASO patients and 17 age/sex matched healthy subjects.
| Variable | Patients | Controls | p Value |
|---|---|---|---|
| PT cross sectional diameter (mm) | 25.6 (3.4) | 29.1 (3.5) | 0.01 |
| PT Vmax (m/s) | 1.88 (0.56) | 0.93 (0.19) | <0.01 |
| PT volume ratio systole1/systole2 | 1.16 (0.15) | 1.35 (0.26) | 0.01 |
| RV EF (%) | 53 (7) | 52 (8) | 0.84 |
| RV SV (ml/m?2) | 56 (8) | 50 (13) | 0.06 |
| RV EDV (ml/m2) | 108 (18) | 96 (16) | 0.06 |
| RV ESV (ml/m2) | 51 (14) | 46 (10) | 0.41 |
| RV mass (g/m2) | 14.9 (3.4) | 10.0 (2.6) | <0.01 |
| TV E/A peak flow ratio | 1.60 (0.96) | 1.92 (0.61) | 0.03 |
| TV mean DG of E phase (l/s2) | −1.69 (0.73) | −2.66 (0.96) | <0.01 |
| TV diastasis time (ms) | 19 (30) | 53 (64) | 0.04 |
Data are mean (SD).
A, atrial kick phase; ASO, arterial switch operation; DG, deceleration gradient; E, early filling phase; EDV, end diastolic volume indexed for body surface area; EF, ejection fraction; ESV, end systolic volume indexed for body surface area; PT, pulmonary trunk; RV, right ventricular; SV, stroke volume indexed for body surface area; TV, tricuspid valve; Vmax, maximum velocity.