Bernie Sanders and his wife, Jane, thanked supporters and insisted that he was ‘feeling so much better’ in a video posted to social media on Friday shortly after he was discharged from the hospital following a heart attack.

‘I just want to thank all of you for the love and warm wishes that you sent to me,’ the senator from Vermont said in the video filmed in Las Vegas and posted to his Twitter account on Friday.

‘See you soon on the campaign trail.’

Sanders has his arm around his wife, Jane, who says: ‘Thank you all so much. It really made a difference.’

Sanders is trying to convey a message to voters that he is back at full strength after doctors said the Democratic presidential candidate suffered a heart attack on Tuesday.

Senator Bernie Sanders and his wife, Jane, posted a video to social media after he was discharged from hospital

Sanders vowed to 'see you soon on the campaign trail' after he suffered a heart attack

The 78-year-old's campaign staff revealed the shock news late Friday, at the same time as he was discharged from hospital after undergoing a successful heart procedure.

Sanders was rushed to Desert Springs Hospital in Las Vegas on Tuesday night after complaining of 'chest discomfort', and the Vermont senator's staffers initially stated that he had a blocked artery.

The 2020 contender subsequently underwent a medical procedure to have two stents inserted into his chest.

At the same time as his campaign staff updated the public on his medical diagnosis, Sanders left the Las Vegas hospital following a three-night stay.

The popular politician was accompanied by his wife Jane, and the couple waved to supporters outside the facility.

Appearing in high spirits, Sanders even raised his arm to give a defiant fist pump - a clear signal that he is not bowing out of the Democratic primary battle.

Sanders pumps his fist as he is discharged from a Nevada hospital following a successful heart procedure

Sanders, who was accompanied by his wife Jane, waved to supporters outside the hospital

In a statement released to coincide with his discharge from hospital, Sanders declared: 'After two and a half days in the hospital, I feel great, and after taking a short time off, I look forward to getting back to work'.

He will now fly back to his home in Burlington, Vermont, for some downtime before getting back on the campaign trail.

Sanders is the oldest candidate vying to take on President Donald Trump in 2020 and is third in the polls behind Joe Biden, 76, and Elizabeth Warren, 70.

Sanders has not revealed the exact date he will resume his campaign, but has declared he will be back on stage for the next Democratic debate, scheduled for October 15.

Earlier on Friday, Jane Sanders said in a statement: 'Bernie's doctors are pleased with his progress, and there has been no need for any additional procedures.

'He'll take a few days to rest, but he's ready to get back out there and is looking forward to the October debate'.

U.S. doctors insert about 2 million stents per year into patients, according to Harvard Medical School. It's a procedure the American Heart Association describes as 'fairly common' and says carries fewer complication risks than open-heart bypass surgery.

Despite suffering a heart attack, Sanders has still been politically active from his hospital bed, using his medical incident to advocate for his 'Medicare for All' proposal.

'Thanks for all the well wishes,' he wrote on Facebook on Wednesday.

'I'm feeling good. I'm fortunate to have good health care and great doctors and nurses helping me to recover.

'None of us know when a medical emergency might affect us. And no one should fear going bankrupt if it occurs. Medicare for All!'

Sanders is pictured at a campaign stop in New Hampshire on Monday, less than 48 hours before he suffered a heart attack

The 78-year-old presidential candidate, the oldest in the 2020 field, will have to take it easy but expects to be home in Vermont by the end of the weekend

Several detractors have stated that Sanders' old age should disqualify him from the Presidency.

And back in September, former President Jimmy Carter, who turned 95 this week, said he hopes 'there's an age limit' for the presidency.

'If I were just 80 years old, if I was 15 years younger, I don't believe I could undertake the duties I experienced when I was president,' he said.

Sanders released a doctor’s note during the 2016 presidential campaign saying that he had no history of heart disease and was otherwise in good health.

However, he has had several minor health incidents in the past few months.

Back in March he showed up at South Carolina campaign events with a bandaged head after treatment for what his campaign said was a cut that he suffered in the shower.

He received a half-dozen stitches at a walk-in medical clinic.

Meanwhile, his campaign called off appearances in South Carolina last month in the wake of a Democratic primary debate where his voice sounded strained.

Sanders' release from hospital comes as it's revealed he raised the most in campaign donations of any Democratic hopeful during Third Quarter Fundraising.

Bernie brought in $25.3 million, while Elizabeth Warren was hot on his heels with $24 million.

Meanwhile, Joe Biden raised a comparatively paltry $15 million.

Sanders showed up at a Charleston, South Carolina event in March with a bandaged head for what his campaign said was a cut from a glass shower door