SV-ONE represents the integration of NPC-QIC within the existing FON framework. As such, SV-ONE will engage in research and improvement efforts through the entire lifespan of patients with SVHD, including but not limited to those with a Fontan circulation. The larger objective of this study is to increase longevity and enhance the QoL by improving physical health and functioning, mental health and resilience, and neurodevelopment for individuals with SVHD and their families. A longer-term goal of SV-ONE will be to serve as a platform for research and improvement that will
accelerate advances, with the potential to nest clinical trials and to link to registries and programs,
nationally and internationally.