What question did this study set out to answer?

To explore the unique anatomy of pulmonary circulation in patients with Tetralogy of Fallot and assess treatment outcomes.

April 12, 2026

Anatomy of the Pulmonary Circulation and Outcomes in Tetralogy of Fallot With Major Systemic‐to‐Pulmonary Collaterals and Unilateral Pulmonary Artery of Ductal Origin

Key Points

To explore the unique anatomy of pulmonary circulation in patients with Tetralogy of Fallot and assess treatment outcomes.
Analyzed cases of Tetralogy of Fallot with unilateral pulmonary artery and major systemic-to-pulmonary collaterals.
Evaluated the effectiveness of stenting the ductus arteriosus in the neonatal period followed by pulmonary artery reconstruction.
Assessed patient outcomes based on the anatomical configuration of major aortopulmonary collateral arteries.
Excellent outcomes were observed in patients treated with stenting and subsequent repairs.
Anatomical variations play a significant role in the timing and type of interventions performed.
Stenting of the ductus arteriosus is crucial for ensuring appropriate flow to the pulmonary arteries.

Abstract

The presence of with a DA supplying all flow to 1 normally arborizing PA, almost always the left PA, and MAPCAs providing all flow to the other lung, is a distinct anatomic subset of TOF/MAPCAs. In our practice, stenting of the DA in the neonatal period is the most appropriate therapy, typically followed by PA reconstruction and repair in early infancy, depending on the anatomy of the MAPCAs to the contralateral lung. Outcomes in these patients are generally excellent.

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Cite This Study

Ortega et al. (Thu,) studied this question.

synapsesocial.com/papers/69db37df4fe01fead37c5fb3 https://doi.org/https://doi.org/10.1002/ccd.70585

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