ExoVasc for enlarged aorta

Hi, do any of you know about ExoVasc trail for enlarged aorta. This looks so encouraging and would be good to be presented to as many cardiologists as possible. I have son with Transposition of Great Arteries that had been repaired 14 years ago, however he has developed very enlarged aortic root (4.6 cm on last MRI). When I found this new procedure that has been on trail in United Kingdom, I am so hopeful that if we need surgery that will be our cardiologist preferred option, as is much faster operation then Ross and does not require bypass, cooling, medication after procedure….