Preoperative pulmonary valve annulus diameter z score as a predictor of pulmonary regurgitation after tetralogy of Fallot repair: a retrospective cohort study
J Cardiothorac Surg. 2026 Jun 4. doi: 10.1186/s13019-026-04323-2. Online ahead of print.ABSTRACTBACKGROUND: Tetralogy of Fallot (ToF) is the most common cause of cyanotic congenital heart disease and pulmonary regurgitation (PR) remains its most frequent postoperative complication. The preoperative

