Pulmonary Atresia with Intact Ventricular Septum in the Neonate: A Review

Area of Science:

• Pediatric Cardiology
• Congenital Heart Disease
• Cardiac Surgery

Background:

• Pulmonary atresia with intact ventricular septum (PA/IVS) is a critical cyanotic congenital heart lesion.
• It involves complete pulmonary outflow obstruction and variable right heart hypoplasia.
• PA/IVS presents a spectrum of clinical scenarios from birth.

Purpose of the Study:

• To outline the diverse clinical presentations and management pathways for PA/IVS.
• To identify key factors influencing treatment decisions in neonates with PA/IVS.
• To provide a comprehensive overview of surgical and interventional options.

Main Methods:

• Review of clinical data and management strategies for patients with PA/IVS.
• Analysis of anatomical factors influencing right ventricular development and function.
• Assessment of coronary circulation dependency on the right ventricle.

Main Results:

• Management strategies range from transcatheter interventions to surgical palliation or heart transplantation.
• Treatment decisions are guided by right ventricular size and function.
• The presence and severity of right ventricular-dependent coronary circulation significantly impact outcomes.

Conclusions:

• PA/IVS requires individualized management based on detailed anatomical and physiological assessment.
• Early identification of factors like right ventricular hypoplasia and coronary circulation is crucial.
• Optimizing treatment pathways ensures the best possible outcomes for affected neonates.