Scientists pinpoint those more at risk of DVT

Long-haul travellers who take oral contraceptives or have a genetic mutation common in northern Europe are at increased risk of potentially fatal blood clots, the World Health Organisation said in Geneva today.

The United Nations health body issued a 24-page report warning that, while the risk of developing deep vein thrombosis, normally in the form of a blood clot in the calves, is small, it increases if people stay immobile for long periods in cramped conditions, or are predisposed to the condition for genetic or lifestyle reasons.