PDA Post NICU Discharge

Inclusion Criteria:

- Documentation of informed consent and authorization for participation.

- Estimated gestational age of 32 weeks or less.

- Active diagnosis of a PDA at discharge.

- At least one echocardiogram obtained during hospital stay documenting/ confirming PDA
diagnosis.

- Parental agreement to provide follow-up information on their child.

- Cardiologist and/or Pediatrician willing to provide follow-up information on enrolled
infants.

Exclusion Criteria:

- No known major congenital anomalies (inborn error of metabolism, cyanotic congenital
heart disease, gastroschisis, omphalocele, diaphragmatic hernia or other major
gastrointestinal anomalies, major neurological injury or anomaly, multiple congenital
anomalies).

- Chromosomal / genetic disorders - Inherited metabolic disorders (Aa, fat or
carbohydrate), Trisomies, Turner's syndrome,Vater's syndrome, CHARGE, DiGeorge or
other 22q11 deletions, Major chromosomal duplications, deletions detectable on high
resolution karyotype (not microarray).

- Parent(s) unwilling to participate in follow-up.