Birth control pills, long plane flights increase risk of blood clots
May 18th, 2010 by Jennifer Walker-Journey
Irina Shiryaeva was ecstatic when her family won the “green card lottery,” earning them sought-after immigration papers allowing them to leave their hometown in Russia and move to the United States. But her dream was cut short when she died shortly after arriving in the United States. Irina suffered from a pulmonary embolism, a blood clot in her lungs. Doctors theorized it was the long, nine-hour plane ride coupled with her recent use of birth control pills.
Blood clots are one of the most common causes of death in the United States, second only to cancer. Despite their prevalence, only six percent of Americans know the symptoms and risk factors of blood clots – including pulmonary embolism and deep vein thrombosis, or blood clots that commonly affect the leg veins.
According to the National Alliance for Thrombosis and Thrombophilia, there are many known causes for blood clots to form. Those factors include prolonged bed rest or inactivity, such as long plane rides. The lack of movement can cause reduced circulation in the legs. Most surgical procedures or physical trauma can also increase one’s risk. Other situations that increase one’s risk of blood clots includes pregnancy, oral contraceptives and hormone replacement therapy.
Estrogen does not cause blood clots, but it does dramatically increase a woman’s risk. Most birth control pills, which include an estrogen and progestin, increase a woman’s risk of blood clots by as much as three- to four-fold. About one woman out of 300 taking oral contraceptives will develop a blood clot. Women on birth control pills who have additional risk factors – such as taking a long-distance trip or flight – are at even greater risk of developing potentially life threatening blood clots.
While manufacturers of birth control pills and even birth control patches have warnings on their label of the increased risk of blood clots, many women who have been harmed by them say the warnings weren’t adequate enough. Several lawsuits have been filed against the makers of Yaz, Yasmin and its generic, Ocella; and Johnson & Johnson, maker of the Ortho Evra birth control patch, has paid millions to settle lawsuits from women who have suffered blood clots after using the patches.
Unfortunately, it’s too late for Irina, who leaves behind a husband and 3-year-old son.
Source: News Observer