Heart gene therapy patient on new trial

A trial of a gene therapy to treat heart failure has started at a London hospital.

Heart failure affects more than 750,000 people in the UK. Numbers are growing as more people survive heart attacks, but with damaged and weakened organs.

The trial uses a genetically modified virus which contains instructions to produce a protein that heart failure patients are lacking in their heart muscle.

David Palmer told the BBC's medical correspondent Fergus Walsh how the treatment was not a cure but had given him hope for the future.