Combined ventricular dysfunction and atrioventricular valve regurgitation after the Norwood procedure are associated with attrition prior to superior cavopulmonary connection. - Balsara SL; Burstein D; Ittenbach RF; Kaplinski M; Gardner MM; Ravishankar C; Rossano J; Goldberg DJ; Mahle M; O'Connor MJ; Mascio CE; Gaynor JW; et al. (JTCVS open, 2023)