Coronary heart disease is the countrys leading cause of death A new treatment was designed to treat damaged heart muscle The capsule contains stem cells derived from the patients bone marrow

By Roger Dobson for the Daily Mail

Published: 17:33 EST, 9 March 2015 | Updated: 18:07 EST, 9 March 2015

A new treatment using a tiny grow-bag has been designed to treat damaged heart muscle

A tiny grow-bag could be a new way to mend hearts damaged by disease or heart attack.

The capsule, which is pea-sized, contains stem cells that trigger the growth of new cells.

An estimated 2.3 million people in Britain have coronary heart disease the countrys leading cause of death.

It occurs when the arteries supplying the heart become blocked by fatty substances, reducing the flow of blood.

If a bit of this fatty substance breaks off, it can trigger a blood clot, which in turn cuts off the blood supply to heart muscle, causing it to die off. This is what triggers a heart attack.

Heart disease and heart attacks can also lead to heart failure, where the heart becomes too weak to pump blood around the body properly.

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The tiny grow-bag that could mend a heart damaged by disease