The official Ranger's release does not have any mention about Sean Avery's cardiac arrest, but rumors are all over the internet as if Sean Avery has been hospitalized with cardiac arrest.
"Rangers President and General Manager Glen Sather announced today that forward Sean Avery suffered a lacerated spleen in Tuesday night’s game, and will be sidelined for the remainder of the season.
"He was taken to St. Vincent’s hospital after the game, and was admitted following a CT scan. He is expected to make a full recovery during the off-season.
"The Rangers return to action tomorrow, May 1, when they face-off against the Pittsburgh Penguins in Game Four of their Eastern Conference Semifinal matchup at Madison Square Garden (7:00 p.m.)"
Source: By New York Rangers Release