Coming up two years post fontan this month (3rd stage hlhs open heart surgery)-The video shows him after his first at 4 days old- He went from barely being able to walk any longer distance, I mean literally his TK teacher had to pull him a wagon around school to now riding his bike, running, and soon starting baseball. Two years ago, his oxygen was baseline 75 and now at a mid 90s range. His lips and fingertips were constantly blue and he was always out of breath. It’s amazing to watch him now t