Alan Thicke's official cause of death revealed

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Alan Thicke's official cause of death has been revealed.

The Canadian actor died of a "ruptured aorta" and a "standard type A aortic dissection," according to his official death certificate, which ET obtained on Wednesday. The death certificate lists the time interval between the onset of the ruptured aorta and his death as minutes, while the time between the onset of the aortic dissection and his death is listed as three hours.

A median sternotomy was performed on Thicke on Dec. 13 -- a surgical procedure in which a vertical incision is made along the sternum, providing access to the heart and lungs -- though Thicke did not survive. His time of death is listed as 2:14 p.m. on the same day.

WATCH: Paula Patton Pens Emotional Tribute to Former Father-in-Law Alan Thicke

A type A aortic dissection is a tear beginning in the ascending aorta which progresses throughout the vessel. Symptoms include a sudden onset of severe chest or back pain, and may include vomiting, sweating and lightheadedness.

PHOTOS: Alan Thicke on 'Growing Pains'

27 PHOTOS
Alan Thicke on 'Growing Pains'
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Alan Thicke on 'Growing Pains'

GROWING PAINS - 'Ben's First Kiss' - Airdate: December 7, 1988.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - Gallery - Shoot Date: October 14, 1987.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'B=MC2' - Airdate: November 30, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'There Must Be a Pony' - Airdate: November 2, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images) 

'There Must Be a Pony' - Season Seven - 11/2/91

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - 'The Big Fix' - Airdate: November 9, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - 'Jason Sings the Blues' - Airdate: October 19, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'The Kid's Still Got It' - Airdate: October 26, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - 'Paper Tigers' - Airdate: October 5, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'Stop, Luke and Listen' - Airdate: September 25, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'Happy Halloween' - Airdate: October 31, 1990.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - Gallery - Shoot Date: September 28, 1991.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'Happy Halloween' - Airdate: October 31, 1990.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'The New Deal - Part I' - Airdate: November 8, 1989.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'Future Shock' (a.k.a., 'Maggie's Dream') - Airdate: February 21, 1990.

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GROWING PAINS - 'Guess Who's Coming to Dinner?' - Airdate: November 16, 1988.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'Birth of a Seaver' - Airdate: October 26, 1988.

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GROWING PAINS - 'Family Ties' - Airdate: November 2, 1988.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - 'This is Your Life' - Airdate: November 17, 1987.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'Big Brother's Not Watching' - Shoot Date: June 5, 1987.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - 'Aloha' - Airdate: September 18, 1987.

(Photo by ABC Photo Archives/ABC via Getty Images) 

GROWING PAINS - 'Jason and the Cruisers' - Airdate: September 30, 1986.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - 'Charity Begins in the Home' - Airdate: February 18, 1986.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - Pilot - Airdate: September 24, 1985.

(Photo by ABC Photo Archives/ABC via Getty Images)

GROWING PAINS - Gallery - Shoot Date: November 20, 1985.

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GROWING PAINS - Gallery - Shoot Date: July 22, 1985.

(Photo by ABC Photo Archives/ABC via Getty Images)

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Thicke was initially vomiting and not feeling well prior to his death -- when he was playing hockey with his 19-year-old son, Carter, at the Pickwick Gardens ice skating rink in Burbank, California -- Pickwick Gardens vice president Darin Mathewson told ET last Thursday. Still, Mathewson -- who placed the 911 call when Thicke collapsed at the rink -- said the Growing Pains star was "coherent" when emergency personnel arrived, and was moving around and speaking to his son.

"He said he had pain in his chest, but his color was not good," Mathewson said. "He was a little gray. When the ambulance got here they checked his vitals ... and they put him on the gurney, sat him up."

"When he went by us, he gave us the thumbs up, like, 'I'm doing good guys, I'm good,'" he added.

Thicke was 69 years old.

WATCH: EXCLUSIVE -- Candace Cameron Bure on Alan Thicke's Death: 'He Just Seemed So Healthy, So Young'

The beloved Canadian actor's son, 39-year-old singer Robin Thicke, hosted a star-studded memorial to his father on Sunday. A source told ET that about 150 people attended the emotional memorial service that took place at Thicke's ranch in Carpinteria, California, including Leonardo DiCaprio, Bob Saget, Kevin Costner, and the entire cast of Growing Pains.

PHOTOS: Alan Thicke through the years

35 PHOTOS
Alan Thicke through the years
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Alan Thicke through the years

Actress Valerie Harper and actor Alan Thicke attend the Kenny Rogers in Concert: 'The Gambler' Tour on September 14, 1979 at the Universal Amphitheatre in Universal City, California.

(Photo by Ron Galella/WireImage)

Actor Alan Thicke and son Brennan Thicke attending 'Celebrity Fashion Show Benefiting Windfeather' on June 10, 1984 at the Beverly Wilshire Hotel in Beverly Hills, California.

(Photo by Ron Galella/WireImage)

Actor Alan Thicke and actress Gina Gallego attending Third Annual American Diabetes Association Waiters Brunch on February 9, 1985 at Baxter's Restaurant in Westwood, California.

(Photo by Ron Galella/WireImage)

Actor Alan Thicke attending the premiere party for 'Out of Africa' on December 10, 1985 at the Plitt Theater in Century City, California.

(Photo by Ron Galella/WireImage)

GROWING PAINS - 'The Kid' - Airdate: December 16, 1985.

(Photo by ABC Photo Archives/ABC via Getty Images) 

Actor Alan Thicke attending 59th Annual Hollywood Christmas Parade on November 25, 1990 in Hollywood, California.

(Photo by Ron Galella/WireImage)

Actor Alan Thicke and sons Brennan Thick and Robin Thicke and Actress Joanna Kerns attend the 'Celebration of Tradition' A Gala Event Gathering Warner Bros. Stars on June 2, 1990 at Warner Bros. Studios in Burbank, California.

(Photo by Ron Galella, Ltd/WireImage)

Actor Alan Thicke attending 9th Annual MacLaren Children's Center Benefit on March 10, 1990 at Henry Winkler's home in Toluca Lake, California.

(Photo by Ron Galella/WireImage)

Actor Alan Thicke attending 'Hollywood Stars Night Baseball Game' on August 22, 1992 at Dodger Stadium in Los Angeles, California.

(Photo by Ron Galella/WireImage)

Actor Alan Thicke and date Julie Tovilar attending the world premiere of 'The Bodyguard' on November 23, 1992 at Mann Chinese Theater in Hollywood, California.

(Photo by Ron Galella/WireImage)

THE TONIGHT SHOW WITH JAY LENO -- Episode 646

Pictured: Actor Alan Thicke, host Jay Leno during an interview on March 6, 1995.

(Photo by: Margaret Norton/NBC/NBCU Photo Bank via Getty Images)

Alan Thicke drives a ball during the Lexus Challenge held at La Quinta Country Club in La Quinta, California. Mandatory

(Jon Cuban /Allsport)

Actor Alan Thicke attending the premiere of 'G.I. Jane' on August 6, 1997 at Mann Village Theater in Westwood, California.

(Photo by Ron Galella/WireImage)

Alan Thicke and Jason Alexander in dress rehearsal of 'Promises, Promises,' a musical at the Freud Playhouse at UCLA. Photo Iris Schneider.

(Photo by Iris Schneider/Los Angeles Times via Getty Images)

Actor Alan Thicke and son Carter Thicke attending the premiere of 'Adventures of Rocky and Bullwinkle' on June 24, 2000 at Loew's Universal Cinema in Universal City, California.

(Photo by Ron Galella/WireImage)

Alan Thicke during 'Me, Myself & Irene' Los Angeles Premiere at Mann Village Theatre in Westwood, California, United States.

(Photo by SGranitz/WireImage)

Actor Alan Thicke skates at the opening of the Universal CityWalk Ice Rink on November 29, 2002 in Universal City , California. The rink will be open to the public through January 5, 2003.

(Photo by Frederick M. Brown/Getty Images)

Actor Alan Thicke attends the Los Angeles premiere of 'Pinocchio' on December 22, 2002 in Los Angeles, California. The film opens in theaters nationwide on Wednesday December 25, 2002.

(Photo by Robert Mora/Getty Images)

Actor/producer Alan Thicke and model Tanya Callau pose after being married on May 7, 2005 at The One&Only Pamilla Resort in Cabo San Lucas, Mexico.

(Photo by Vince Bucci/Getty Images)

Alan Thicke, Tanya Callou, Paula Patton and Robin Thicke attends the Opening Night at the 40/40 Club in Las Vegas, NV December 30, 2007.

(Photo by Johnny Nunez/WireImage)

Actor Alan Thicke poses for photographs with his 2008 Jaguar XJ outside his home in Carpinteria, December 1, 2011.

(Photo by Ann Johansson/Corbis via Getty Images)

'I'm In The Band' on Disney XD.

(Photo by Bruce Birmelin/Disney XD via Getty Images)

Hoda Kotb and Alan Thicke appear on NBC News' 'Today' show

(Photo by Peter Kramer/NBC/NBCU Photo Bank via Getty Images)

Actor Alan Thicke and Pharrell Williams attend the Qream Launch Party on July 14, 2011 in Hollywood, California.

(Photo by Johnny Nunez/WireImage)

Alan Thicke attends the 10th Annual Michael Jordan Celebrity Invitational Celebrity Dinner in BESO At Crystals at CityCenter on March 31, 2011 in Las Vegas, Nevada.

(Photo by Chris Weeks/WireImage)

Actor Alan Thicke and recording artist Robin Thicke attend The GRAMMY Nominations Concert Live!! Countdown to Music's Biggest Night at Nokia Theatre L.A. Live on December 6, 2013 in Los Angeles, California.

(Photo by Charley Gallay/WireImage)

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Carole Radziwill and Alan Thicke

(Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)

Actors Charlie Sheen and Alan Thicke attend the Joe Carter Classic Charity Golf Tournament after-party at Shangri-La Hotel on June 26, 2014 in Toronto, Canada. 

(Photo by George Pimentel/WireImage)

Actor Alan Thicke attends the 2013 Summer TCA Party for the Hallmark Channel's on July 8, 2014 in Beverly Hills, California.

(Photo by Paul Archuleta/FilmMagic)

Alan Thicke attends the Dodgers' Hollywood Stars Night Game at Dodger Stadium on June 6, 2015 in Los Angeles, California.

(Photo by Noel Vasquez/GC Images)

Actor Flex Alexander, producer Tony Cornelius, actor Alan Thicke and actor/comedian Cedric the Entertainer attend the second annual Coach Woodson Las Vegas Invitational pairings party at the Lavo Restaurant & Nightclub at The Palazzo Las Vegas on July 12, 2015 in Las Vegas, Nevada.

(Photo by Bryan Steffy/Getty Images for PGD Global)

Alan Thicke arrives for the 'Cool Comedy - Hot Cuisine' benefit for the Scleroderma Research Foundation at Regent Beverly Wilshire Hotel on June 5, 2015 in Beverly Hills, California.

(Photo by Gabriel Olsen/FilmMagic)

Actor Alan Thicke and wife Tanya Callau arrive at the premiere of STX Entertainment's 'Bad Moms' at Mann Village Theatre on July 26, 2016 in Westwood, California.

(Photo by Gregg DeGuire/WireImage)

Actor Alan Thicke arrives for the Comedy Central Roast Of Rob Lowe at Sony Studios on August 27, 2016 in Los Angeles, California.

(Photo by Greg Doherty/Getty Images)

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