Research Article
A High Ductal Flow Velocity Is Associated with Successful Pharmacological Closure of Patent Ductus Arteriosus in Infants 22–27 Weeks Gestational Age
Table 1
Perinatal characteristics.
| | Ductus closed () | Ductus persistent () | |
| Gestational age, weeks (range) | 25+5 (22+2–27+4) | 24+3 (22+3–27+4) | 0.047 | Birth weight, grams (range) | 718 (432–1217) | 595 (440–1052) | 0.363 | Male gender (%) | 20 (69) | 14 (52) | 0.274 | Preeclampsia (%) | 5 (17) | 5 (19) | 1.000 | Antenatal steroids (%) | 23 (79) | 22 (81) | 1.000 | Cesarean section (%) | 17 (59) | 15 (56) | 1.000 | Surfactant (%) | 28 (97) | 26 (96) | 1.000 |
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