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Scientists have developed dressings the size of an inch that can help repair the heart after an attack.
The patches, sewn on the spot during the surgery, contain stem cells programmed to turn into cardiac muscle cells.
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The tests showed that they start beating by themselves in three days and ultimately help the damaged heart muscle pump more efficiently.
The chemicals they contain also stimulate cell repair and regeneration. The tests on the man must start in two years.
The ultimate goal is to have a stock of prefabricated patches compatible with all patients. Thus, a patient in heart attack could have one quickly implanted.
Dr. Richard Jabbour, of the London British Heart Foundation's Regenerative Medicine Center, said patches may one day become standard treatment prescribed by general practitioners.
Professor Metin Avkiran of the BHF said the research "could fix broken hearts".
Prof. Metin Avkiran, BHF, said, "This is an excellent example of cutting edge research in the world that could repair broken hearts and transform lives around the world."
"If clinical trials could show the benefits of these cardiac patches in people after a heart attack, it would be a big step forward for regenerative medicine.
"Heart failure is a debilitating and life-changing disease without treatment, making daily tasks incredibly difficult.
"If we can repair the heart and help it heal, we could transform the perspectives of these people."
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The heart lacks nutrients and oxygen during a heart attack, which kills parts of its muscles and impairs its ability to pump blood.
This weakens the heart and can lead to heart failure, which makes everyday tasks such as climbing stairs and wearing clothes.
The disease affects an estimated 920,000 people in the UK, including Claire Marie Berouche, 52, of Ealing, in West London, who developed heart failure after a heart attack while in the UK. she was only 45 years old.
She said, "Living with heart failure has changed my life.
"I can not do the normal things of everyday life like going to the shops or even staying late with friends.
"New treatments like these potential patches for the heart give me hope that someday they could heal me and repair my broken heart."
Patch research is presented at the British Cardiovascular Society Conference in Manchester.
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