Table 4.
Differences in Patients Weighing <6 kg
| Characteristics | <6 kg (n=37) | ≥6 kg (n=459) | P Value |
|---|---|---|---|
| Any coil intervention | 5 (14) | 153 (33) | 0.01 |
| Any device intervention | 32 (86) | 306 (67) | 0.02 |
| Diagnosis | |||
| Isolated PDA | 22 (59) | 423 (92) | <0.001 |
| Pulmonary hypertension | 4 (11) | 2 (<1) | |
| Intracardiac disease and PDA | 11 (30) | 34 (7) | |
| Genetic syndrome | 14 (38) | 51 (11) | <0.001 |
| Spontaneous respiration | 5 (14) | 166 (36) | 0.004 |
| Case duration, min | 84 [67, 105] (22, 298) | 63 [50, 81] (16, 295) | <0.001 |
| Contrast dose, mL/kg | 6.3 [4.6, 8.2] (0.0, 11.7) | 3.4 [2.3, 4.4] (0.0, 14.7) | <0.001 |
| Minimum lumen diameter of PDA (n=132, 330) | 2.8 [2.0, 3.5] (1.0, 5.0) | 2.0 [1.6, 3.0] (0.5, 12.0) | 0.004 |
| Any adverse event | 9 (27%) | 37 (8%) | 0.002 |
Number (%) or median [IQR] (range). PDA indicates patent ductus arteriosus.