Why has economy class syndrome become a recent popular name for DVT?

The economy class syndrome is directly related to immobility for long periods during which blood pools in the legs, raising the risk of clot formation. The tendency to immobility is often compounded by the fasten-seat belt sign, the presence of carts in the aisles, etc.



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The term 'economy class syndrome' refers to the occurrence of thrombotic events during long-haul flights that mainly occur in passengers in the economy class of the aircraft.

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Traveller's thrombosis (economy class syndrome) is a condition that occurs when you have to sit in the same position for a long time, such as when on an airplane. Traveller's Thrombosis can occur if you stay in the same position for a long time without much movement.

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Sitting in roomier first class seats won't lower the risk of developing DVT, but sitting in an aisle seat will, according to the American College of Chest Physicians.

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Factors that contribute to the increased risk of travel-related DVT include obesity, extremes of height, use of oral contraceptives and pre-existing blood clotting abnormalities. The absolute risk of DVT in healthy passengers per long-haul flight (more than 4 hours) was found to be about 1 in 6000.

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