lab analysis, or by using real-time sensors that were attached to the perfusion tubing. Lower FMN release during ''ex situ'' perfusion correlated with improved transplant outcomes, including fewer non-anastomotic strictures and reduced rates of primary non-function (PNF), lower post-transplant transaminase levels, and higher hepatic synthetic function.

Riboflavin 5'-phosphate (Epioxa) and riboflavin 5'-phosphate sodium (Epioxa HD) and are photoenhancers