LA/Ao ratio and aortic diastolic flow by the transductal velocity ratio of the patent ductus arteriosus
| Transductal velocity ratio | ||||
|---|---|---|---|---|
| < 1.8 | 1.8–3.7 | > 3.7 | p Value | |
| Mean (SD) LA/Ao | 1.6 (0.4) (n = 24) | 1.3 (0.3) (n = 23) | 1.3 (0.3) (n = 10) | 0.0112-150 |
| Mean (SD) LVIDd/Ao | 1.9 (0.3) (n = 19) | 1.7 (0.2) (n = 18) | 1.7 (0.3) (n = 9) | 0.0492-150 |
| Number (%) with | ||||
| Forward diastolic flow | 4 (17) | 7 (35) | 5 (56) | |
| Reverse/absent diastolic flow2-152 | 19 (83) | 13 (65) | 4 (44) | 0.0962-151 |
Numbers in columns differ slightly due to unavailability of some variables in individual patients.
↵2-150 One way analysis of variance (ANOVA);
↵2-151 χ2 test.
↵2-152 Reverse or absent diastolic flow in the descending aorta.
LA/Ao, left atrial diameter/aortic diameter ratio; LVIDd/Ao, left ventricle internal diameter/aortic diameter ratio.