'Space hairdryer' regenerates heart tissue in study | BBC News

Warning: This video contains images of open-heart surgery.

Gentle shockwaves could regenerate the heart tissue of patients after bypass surgery, according to new research.

A study of 63 people in Austria found those given the new treatment could walk further - and their hearts could pump more blood.

Larger trials of the device, dubbed a "space hairdryer" by researchers, are now planned to try to replicate the results in a wider group of patients.