MONTREAL – Philadelphia Flyers captain Chris Pronger will miss the rest of the regular season and playoffs because of severe post-concussion syndrome.

Philadelphia General Manager Paul Holmgren made the announcement through a team spokesman early in the first period of the Flyers’ game against Montreal on Thursday night.

Pronger has been sidelined since Nov. 19.

“After consultation with respected concussion specialists Dr. Joseph Maroon and Dr. Micky Collins, it is the opinion of both doctors that Chris is suffering from severe post-concussion syndrome,” Holmgren said. “It is the recommendation of doctors Maroon and Collins that Chris not return for the remainder of the 2011-12 season or playoffs. Chris will continue to receive treatment and therapy with the hope that he can get better.”

Pronger visited Maroon and Collins on Wednesday in Pittsburgh after complaining about a fairly persistent headache and sluggish feeling. The 37-year-old defenseman also missed six games this season because of an eye injury, and had surgery on his left knee last month.

Claude Giroux, the NHL scoring leader with 39 points, also is out indefinitely because of a concussion.

BRUINS: Defenseman Adam McQuaid was fined $2,500 by the NHL for kneeing Ottawa’s Nick Foligno on Wednesday night.

CANUCKS: Left winger Daniel Sedin sat out Thursday’s game at Carolina because of a stiff back.

He was replaced in the lineup by Mark Mancari, who was called up from Vancouver’s AHL affiliate in Chicago.

THURSDAY’S GAMES

FLYERS 4, CANADIENS 3: Andrei Meszaros scored 8:08 into the third, Mathieu Carle had three assists and visiting Philadelphia extended its winning streak to seven. 

BLUES 4, RANGERS 1: Brian Elliott made 25 saves for his ninth victory in the last 10 games, and Alex Steen had a goal and an assist for St. Louis in a win at home. 

PREDATORS 4, RED WINGS 3: Shea Weber scored two goals late in the third period to lift Nashville over visiting Detroit. 

KINGS 2, BLUE JACKETS 1: Dustin Brown scored on a deflection midway through the third period, and Jonathan Quick made 24 saves to help visiting Los Angeles end a five-game losing streak. 

HURRICANES 4, CANUCKS 3: Drayson Bowman scored two goals and Carolina rallied to give Coach Kirk Muller his first home victory. 

STARS 3, ISLANDERS 2: Jamie Benn scored the go-ahead goal 4:33 into the third period and also had an assist for Dallas in a victory at Uniondale, N.Y. 

LIGHTNING 5, FLAMES 4: Steven Stamkos scored 30 seconds into overtime to lift Tampa Bay past visiting Calgary. 

CAPITALS 1, JETS 0: Alex Ovechkin scored with 1:14 remaining and Michal Neuvirth made 26 saves for his first shutout of the season, leading Washington to a victory at Winnipeg, Manitoba.