Related Experiment Video
Updated: May 15, 2026

Four-Dimensional Computed Tomography-Guided Valve Sizing for Transcatheter Pulmonary Valve Replacement
Published on: January 20, 2022
Thoracic computed tomography in absent pulmonary valve syndrome management
Marie Vincenti1, Aurélien Jacquot, Sophie Guillaumont
1Neonatal Intensive Care Unit, Arnaud de Villeneuve Hospital, Montpellier, France.
Abstract:
A neonate with absent pulmonary valve syndrome (APVS) and features of tetralogy of Fallot presented respiratory distress. The prolonged need for mechanical ventilation was an indication for surgical repair. Preoperative thoracic CT imaging showed nearly complete closure of the distal trachea, compressed by the aneurysmal dilatation of the pulmonary arteries, and its reopening after ventilator pressure was increased. Management of APVS may require high-pressure ventilation to prevent bronchial collapse due to compression by the pulmonary arteries. In this context, thoracic CT imaging is very useful for adjusting ventilation support so that surgical repair can be performed in optimal conditions.
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