Phillip S Naimo1,2,3, Tyson A Fricke1,2,3, Yves d'Udekem1,2,3, Johann Brink1,2,3, Robert G Weintraub2,3,4, Christian P Brizard1,2,3, Igor E Konstantinov1,2,3. 1. Department of Cardiac Surgery, Royal Children's Hospital, Melbourne, VIC, Australia. 2. Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia. 3. Murdoch Children's Research Institute, Melbourne, VIC, Australia. 4. Department of Cardiology, Royal Children's Hospital, Melbourne, VIC, Australia.
Abstract
OBJECTIVES: Preoperative moderate or greater truncal valve (TV) insufficiency is one of the most important factors influencing mortality in children with truncus arteriosus. We therefore sought to determine the impact of TV insufficiency and concomitant TV surgery on children who underwent truncus arteriosus repair at a single institution. METHODS: We reviewed 180 patients who underwent truncus arteriosus repair between 1979 and 2016. Preoperative echocardiography demonstrated TV insufficiency in 80 patients (mild: 33.9%, 61/180; moderate: 9.4%, 17/180 and severe: 1.1%, 2/180). RESULTS: Twenty-one patients had concomitant TV surgery with an early mortality of 19% (4/21) and overall survival of 70.8 ± 10.1% at 25 years. There were 60 neonates, 11 of whom had concomitant TV surgery with an early mortality of 27% (3/11) and overall survival of 62.3 ± 15.0% at 20 years. Concomitant TV repair (P = 0.5) was not a risk factor for death. TV reoperation was common in those who had concomitant TV surgery, with freedom from reoperation of 19.2 ± 14.9% at 20 years. In the remaining 159 patients, 14 required subsequent TV surgery, and the freedom from TV surgery was 84.0 ± 4.6% at 20 years. At a median follow-up of 18.5 years, TV insufficiency was none or trivial in 79.6% (109/137) and mild or less in 98.5% (135/137) of patients. CONCLUSIONS: Most patients with mild TV insufficiency are free from TV surgery up to 25 years. The durability of TV repair is poor. Most patients with moderate or greater TV insufficiency and a quadricuspid TV will require TV surgery.
OBJECTIVES: Preoperative moderate or greater truncal valve (TV) insufficiency is one of the most important factors influencing mortality in children with truncus arteriosus. We therefore sought to determine the impact of TV insufficiency and concomitant TV surgery on children who underwent truncus arteriosus repair at a single institution. METHODS: We reviewed 180 patients who underwent truncus arteriosus repair between 1979 and 2016. Preoperative echocardiography demonstrated TV insufficiency in 80 patients (mild: 33.9%, 61/180; moderate: 9.4%, 17/180 and severe: 1.1%, 2/180). RESULTS: Twenty-one patients had concomitant TV surgery with an early mortality of 19% (4/21) and overall survival of 70.8 ± 10.1% at 25 years. There were 60 neonates, 11 of whom had concomitant TV surgery with an early mortality of 27% (3/11) and overall survival of 62.3 ± 15.0% at 20 years. Concomitant TV repair (P = 0.5) was not a risk factor for death. TV reoperation was common in those who had concomitant TV surgery, with freedom from reoperation of 19.2 ± 14.9% at 20 years. In the remaining 159 patients, 14 required subsequent TV surgery, and the freedom from TV surgery was 84.0 ± 4.6% at 20 years. At a median follow-up of 18.5 years, TV insufficiency was none or trivial in 79.6% (109/137) and mild or less in 98.5% (135/137) of patients. CONCLUSIONS: Most patients with mild TV insufficiency are free from TV surgery up to 25 years. The durability of TV repair is poor. Most patients with moderate or greater TV insufficiency and a quadricuspid TV will require TV surgery.
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