Pulmonary Valve Annulus Z-Score as a Predictor of Transannular Patch Insertion in Tetralogy of Fallot Repair: A Cross-sectional Study at National Cardiovascular Center Harapan Kita

Background

The use of a Transannular Patch (TAP) in the surgical repair of Tetralogy of Fallot (TOF) can improve Right Ventricular Outflow Tract (RVOT) flow but may increase the risk of long-term pulmonary insufficiency. Therefore, the decision to use TAP is critical. The Pulmonary Valve Annulus (PVA) diameter z-score is commonly used to predict TAP insertion; however, no z-score threshold has been established in Indonesia. This study sought to investigate whether the preoperative z-score of PVA diameter predicts the use of TAP during TOF repair surgery.