Respiratory Trajectory after Invasive Interventions for Patent Ductus Arteriosus of Preterm Infants

Area of Science:

• Neonatal Medicine
• Pediatric Cardiology
• Interventional Cardiology

Background:

• Patent ductus arteriosus (PDA) is common in preterm infants, often requiring intervention when medical management fails.
• Surgical ligation is a traditional invasive method, while transcatheter occlusion is a newer, feasible option for premature infants.
• Limited research compares transcatheter occlusion and surgical ligation specifically in very-low-birth-weight (VLBW) infants regarding respiratory outcomes.

Purpose of the Study:

• To compare the short-term respiratory outcomes of transcatheter occlusion versus surgical ligation for PDA in VLBW infants.
• To evaluate the feasibility and effectiveness of these invasive interventions in a VLBW population.

Main Methods:

• Retrospective review of 401 VLBW infants admitted between September 2014 and January 2019.
• Exclusion of infants with congenital anomalies, chromosomal anomalies, or significant congenital heart disease (excluding inter-atrial shunt).
• Comparison of respiratory support trajectories between 14 infants treated with transcatheter occlusion and 17 infants treated with surgical ligation.

Main Results:

• No statistically significant difference in short-term respiratory outcomes between transcatheter occlusion and surgical ligation groups.
• A trend towards earlier improvement in post-intervention respiratory trajectory was observed in the transcatheter occlusion group.
• This small case study suggests potential differences in respiratory recovery patterns.

Conclusions:

• Transcatheter occlusion and surgical ligation appear comparable for short-term respiratory outcomes in VLBW infants with PDA.
• Preliminary findings suggest a potential benefit of transcatheter occlusion for faster respiratory improvement.
• Larger studies are needed to confirm these observations and explore long-term outcomes.