Percutaneous Intervention Versus Observational Trial of Arterial Ductus in Low Weight Infants

Inclusion Criteria:

1. EPIs born between 22-weeks+0 days (220/7 wks) and 27-weeks+6 days (276/7 wks)gestation, inclusive

2. Admitted to a study NICU

3. Birth weight ≥700-grams

4. Mechanically ventilated at time of consent and randomization

5. HSPDA ("PDA Score" ≥6) noted on echocardiogram (ECHO)

6. Randomization is able to be performed within 5 days of the qualifying ECHO and wheninfant is 7-32 days postnatal

Exclusion Criteria:

Clinical Exclusion Criteria

1. Life-threatening congenital defects (including congenital heart disease such asaortic coarctation or pulmonary artery stenosis). PDA and small atrial/ventricularseptal defects are permitted;

2. Congenital lung abnormalities, (e.g. restrictive lung disease);

3. Pharyngeal or airway anomalies (tracheal stenosis, choanal atresia);

4. Treatment for acute abdominal process (e.g., necrotizing enterocolitis);

5. Infants with planned surgery;

6. Active infection requiring treatment;

7. Chromosomal defects (e.g., Trisomy 18);

8. Neuromuscular disorders;

9. Infants whose parents have chosen to allow natural death (do not resuscitate order)or for whom limitation of intensive care treatment is being considered (e.g. severeintraventricular hemorrhage)

10. Physician deems that the infant would not be a Percutaneous PDA Closure candidatedue to clinical instability; however, if the infant's clinical status improvesbefore 30-days postnatal and all inclusion criteria are still met, then the infantmay be enrolled.

ECHO-based Exclusion Criteria

1. Pulmonary hypertension (defined by ductal right to left shunting for >33% of thecardiac cycle) in which early PDA closure may increase right ventricular afterloadand compromise pulmonary and systemic blood flow;

2. Evidence of cardiac thrombus that might interfere with device placement;

3. PDA diameter larger than 4 mm at the narrowest portion (consistent with FDA-approvedinstructions for Piccolo™ device use).

4. PDA length smaller than 3 mm (consistent with FDA-approved instructions for Piccolo™device use).

5. PDA that does not meet inclusion requirements ("PDA Score" <6).* * If a potentialparticipant is found to have a PDA meeting eligibility requirements on a subsequentECHO during the required period of 7 - 30 postnatal days of age, they may then bedeclared eligible to participate and enrolled, provided all other inclusion criteriaare met and exclusion criteria are not met.

Other Exclusion Criteria

1. Parents or legal guardian do not speak English or Spanish