In a recent meeting arranged by the World Health Organization, medical experts and representatives of major airlines agreed there could be a link between long-haul flights and blood clots.  The two groups have launched an extensive study.

            The three-pronged study will look at the incidence of blood clots in passengers, will determine if change in cabin pressure and oxygen levels increase the risk, and will assess the effects of exercise, wearing circulation stimulating stockings of taking blood-thinning agents.

Deep vein thrombosis is a condition in which a blood clot forms in the deep veins of the legs-which can be potentially deadly when part of the clot breaks off and blocks a blood vessel in the lungs.

            Experts believe airline passengers are at an increased risk for deep vein thrombosis because passengers sit for such long periods of time.

            The most effective preventative measures you can take to reduce the risk of blood clots is to exercise the feet and legs at your seat to improve circulation.  Experts also recommend drinking plenty of water and avoiding alcohol.

            The meeting and interest in the study occurred after recent deaths linked to deep vein thrombosis sparked class-action- lawsuits against major international airlines.  To date, 1,000 people claim to have suffered from deep vein thrombosis while on flights.

SOURCE: “WHO,airlines to study blood clots,” www.news.excite.com;USA today, March 12,2001; www.usatoday.com.

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