Actor Mark Sheppard was 'brought back from dead' 4 times following medical scares
Mark Sheppard suffered "six massive heart attacks" Saturday and was then brought back from the dead four separate times.
The "Supernatural" actor detailed his medical adventure on Instagram hours after discovering a "100% blockage" in his left anterior descending artery.
"You’re not going to believe this! Was on my way to an appointment yesterday when I collapsed in my kitchen," Sheppard wrote online.
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"Supernatural" actor Mark Sheppard was brought back from the dead multiple times after suffering 6 heart attacks. (Jun Sato)
"Six massive heart attacks later, and being brought back from dead 4 times I apparently had a 100% blockage in my LAD. The Widowmaker."
A widowmaker is the informal term for a heart attack which can involve 100 percent blockage in the left anterior descending artery, which can be lethal.
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Common widowmaker heart attack symptoms include shortness of breath, chest pain and feeling lightheaded, according to the University of Michigan Medicine.
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Sheppard's representative confirmed to Fox News Digital that he's expected to make a "full recovery."
"If not for my wife, the @losangelesfiredepartment at mullholland and the incredible staff @providencecalifornia St Joseph’s - I wouldn’t be writing this," he continued on Instagram.
"My chances of survival were virtually nil. I feel great. Humbled once more. Home tomorrow!"
Shephard has starred in "Battlestar Galactica," "Dr. Who," and "Leverage." (Albert L. Ortega)
The Los Angeles Fire Department sent well-wishes online, and wrote, "We’re so glad to hear of your outcome and wish you a full and speedy recovery!"
In addition to his role on "Supernatural," Mark has starred on "Battlestar Galactica," "CSI: Crime Scene Investigation," and "Leverage."
His father, William Morgan Sheppard, was known for his work on "Star Trek."
Tracy Wright is an entertainment reporter for Fox News Digital. Send story tips to