Table 3.
Subgroup analysis of the demographics and characteristics of infants undergoing procedural PDA closure between January 2017 and April 2023.
| T o t a l = 46 | TCDC ( n = 15) | Ligation ( n = 31) | p value | |
|---|---|---|---|---|
| Gestation at birth (weeks), median (range) | 26 (23–29) | 27 (23–29) | 25 (24–29) | 0.092 |
| Birth weight, median (range) | 851.5 (450–1557) | 890 (479–1220) | 843 (450–1557) | 0.527 |
| Male sex, N (%) | 27 (66%) | 12 (80%) | 15 (48%) | 0.085 |
| Small for gestational age, N (%) | 17 (37%) | 9 (60%) | 8 (26%) | 0.054 |
| Antenatal steroids, any, N (%) | 46 (100%) | 15 (100%) | 31 (100%) | 0.999 |
| Chronological age at time of closure (days), median (range) | 34 (8–96) | 44 (14–96) | 31 (8–96) | 0.052 |
| Gestational age at time of closure (weeks), median (range) | 30 (27–42) | 33 (29–42) | 30 (27–41) | 0.021 |
| Weight at time of closure (grams), median (range) | 1278 (574–3690) | 1430 (800–3690) | 1158 (574–3672) | 0.018 |
| Medical treatment (yes), N (%) | 44 (96%) | 14 (93%) | 30 (97%) | 0.999 |
| Invasive mechanical ventilation (yes), N (%) | 23 (50%) | 5 (33%) | 18 (58%) | 0.208 |
| Inotropes (yes), N (%) | 1 (2%) | 0 | 1 (3%) | 0.999 |
| Feeding status prior to referral (any enteral feeds), N (%) | 11 (24%) | 13 (87%) | 9 (29%) | < 0.001 |