1% get travel blood clots
900 passengers were tested before and after their long-haul flights. Nine were identified to have developed deep vein thrombosis (as a result of their trip).
However, 66% of those nine passengers had medical problems already (problems which could make blood clots more likely).
Deep vein thromboses are often blamed on poor blood flow in the veins of the lower legs. Blood clots form in the veins as a result of the poor blood flow.
The study was conducted at the Medical Research Institute (New Zealand). All the 900 people studied travelled for at least ten hours (and also flew for about 39 hours over a six-week period).
The researchers used blood tests which measure changes in a chemical called D-dimer (associated with blood clot risk). Anyone who had an increase in D-dimer concentrations (112 passengers) were then given ultrasound tests to see if they had a clot. Nine of those had blood clots.
There were four cases of pulmonary embolism. Six of these nine patients (who had clots) had pre-existing medical conditions (such as heart disease). Two of the nine travelled extensively on business class, which will puzzle those who say the clots are due to the cramped conditions of flying today.
In fact, four out of the nine passengers who developed blood clots had been wearing compression stockings to improve blood flow in their lower limbs.
Dr. Richard Beasley (Leader of study) said, 'Our results suggest an association between multiple long distance air flights and venous thromboembolism, even in individuals at low to moderate risk. The role of traditional risk factors and prophylactic measures in air travel related venous thromboembolism needs further investigation. The term 'economy class syndrome' is now redundant, with a better term being 'air travellers' thrombosis'.'
1% obþine de cãlãtorie a cheagurilor de sânge - 1% get travel blood clots - articole medicale engleza - startsanatate