The KHL is making sure another Alexei Cherepanov-like incident doesn’t happen again, and with more rigorous medical testing they’ve found 5 more players with problematic hearts.
This is a great move by the KHL and all other hockey leagues, be it minor, minor pro, or pro, need to get on this movement. The earlier the leagues can detect heart defects, the better off the league, teams, and most importantly, the player themselves, will be. It’s very unfortunate that it has taken 3 years, since the Jiri Fischer incident, for hockey officials to start taking this very seriously. Had the leagues started to look into this earlier you have to wonder if a couple lives could’ve been saved.