Table 4.
Admission echocardiogram data at surgical center of infants prior to nonpharmacological PDA closure.
| All ( n = 136) | TCDC ( n = 15) | Ligation ( n = 121) | p value | |
|---|---|---|---|---|
| Absolute PDA diameter (mm), median (range) | 2.5 (1.5–4.1) | 2.5 (2–3.5) | 2.6 (1.5–4.1) | 0.609 |
| PDA diameter indexed to body weight (mm/kg), median (range) | 2.42 (0.70–6.23) | 1.61 (0.83–3.38) | 2.60 (0.70–6.23) | < 0.001 |
| Direction of shunt: Left to right, N (%) | 130 (100%) n = 130 |
15 (100%) n = 15 |
115 (100%) n = 115 |
0.999 |
| PDA Doppler profile–pulsatile yes, N (%) | 113 (92%) n = 123 |
15 (100%) n = 15 |
98 (91%) n = 108 |
0.609 |
| Doppler peak systolic velocity (m/s), N (%) | 2.3 (1.0–3.9) n = 118 |
2.6 (1.2–3.6) n = 15 |
2.25 (1.0–3.9) n = 103 |
0.052 |
| Presence of atrial shunt (yes), N (%) | 121 (92%) n = 131 |
13 (87%) n = 15 |
108 (93%) n = 116 |
0.321 |
| Size of atrial shunt, N (%) | ||||
| Small | 93 (78%) | 11 (79%) | 82 (77%) | 0.730 |
| Moderate | 27 (23%) n = 120 |
2 (14%) n = 13 |
25 (23%) n = 107 |
|
| Direction of atrial shunt left to right, N (%) | 118 (98%) n = 120 |
13 (100%) n = 13 |
105 (98%) n = 107 |
0.999 |