1. Outcomes Following Heterotopic Placement of Right Ventricle to Pulmonary Artery Conduits
- Author
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Gary F. Sholler, Andrew D. Cole, David S. Winlaw, Gananjay G. Salve, Akshat Saxena, Kim Betts, Julian Ayer, Nitin Arora, and Yishay Orr
- Subjects
Heart Defects, Congenital ,Male ,medicine.medical_specialty ,Heart Ventricles ,Pulmonary Artery ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Electrical conduit ,Internal medicine ,medicine.artery ,Humans ,Medicine ,Cardiac Surgical Procedures ,business.industry ,Infant, Newborn ,Infant ,General Medicine ,Treatment Outcome ,medicine.anatomical_structure ,Ventricle ,Child, Preschool ,030220 oncology & carcinogenesis ,Pediatrics, Perinatology and Child Health ,Pulmonary artery ,Cardiology ,Truncus arteriosus communis ,Female ,Surgery ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background: We sought to evaluate the outcomes following right ventricle to pulmonary artery (RV-PA) conduit placement in pediatric patients, excluding those with a RV-PA conduit for the Ross procedure which is associated with improved conduit durability, partly related to its orthotopic position. Methods: Outcomes for 119 patients who underwent RV-PA conduit placement at a single institution from January 2004 to December 2016 were reviewed. Primary outcome measures were reintervention-free survival (RFS) and overall survival. Survival analyses were performed using the Kaplan-Meier method, and risk factors associated with reintervention were evaluated. Results: The median age at the time of conduit placement was 6 months (interquartile range, IQR: 1-14), and the median length of follow-up was 63 months (range: 0-156). During follow-up, 39 patients required conduit-related reintervention, while 6 patients died perioperatively with an overall survival of 90% at 10 years. Among the remaining 113 patients, the RFS at one, five, and ten years was 91% (84%-95%), 72% (60%-80%), and 33% (16%-50%), respectively. The median time to conduit replacement in the series was 43.5 months (IQR: 19.3-76.2). The use of a pulmonary homograft was associated with improved RFS ( P = .03), and this was particularly pronounced in comparison with aortic homografts in neonates. Infection was the indication for replacement in only one patient. Conclusions: The majority of the conduits placed during the neonatal period required conduit replacement before the age of five years. Endocarditis was not a common indication for replacement. In neonates and infants, we prefer pulmonary homografts for most indications.
- Published
- 2021
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