THE parents of Newport deep vein thrombosis victim Emma Christoffersen launched a week-long campaign yesterday to raise awareness of the condition at Heathrow airport.

Emma was 28 when she died of a blot clot after sitting for 20 hours on a flight from Australia to Britain in October 2000.

Her parents, Ruth and John Christoffersen, from Llanmartin, launched their campaign to mark the two- year anniversary of their daughter's death, and heighten awareness of the condition.

Mr and Mrs Christoffersen set up Victims of Air Related Deep Vein Thrombosis Association (VARDA) last March to make more people aware of the factors that can make air passengers more susceptible to the potentially fatal condition.

The pair, along with eight other members of VARDA, have set up a picket line at Terminals Three and Four of Heathrow airport

They spent yesterday handing out leaflets and giving advice to people, and will do so for the rest of the week.

Mrs Christoffersen, aged 56, said: "We wanted to do something positive to commemorate Emma's death.

"She had no idea that something was seriously wrong with her, she just thought she had a bad leg. I have no doubt that if she was aware of the advice we are giving, she would have survived."

She added: "My husband and I have been amazed by the number of people who do not know about DVT. We are here to promote safe flying and inform people about hidden dangers."