IVF Increases The The Risk Of Thrombosis

IVF Increases The The Risk Of Thrombosis.


Women who became rich through in vitro fertilization (IVF) may have an increased gamble of developing blood clots and potentially fateful artery blockage, Swedish investigators suggest. Although the risk remains small, the advantage are especially high during the first trimester compared to women who become pregnant naturally, the researchers said. Blood clots - called venous thromboembolism - can come out in the leg veins and weary free, traveling to the lungs and blocking a main artery get more information. This condition, called pulmonary embolism, can cause tribulation breathing and even death.



So "There is an increased incidence of pulmonary embolism and venous thrombosis surrounded by women pregnant after IVF," said lead researcher Dr Peter Henriksson, a professor of internal medication at the Karolinska Institute in Stockholm. "Embolism is the leading cause of maternalistic mortality during pregnancy here i found it. The diagnosis can be elusive, so physicians should be aware of this risk to facilitate the diagnosis".



The peril of clotting during pregnancy isn't confined to women who undergo IVF, another experts said. "Any pregnancy carries a hazard of clotting," said Dr Avner Hershlag, governor of the Center for Human Reproduction at North Shore University Hospital in Manhasset, NY. This is because hormones, only estrogen, increase during pregnancy. "This changes what we call the clotting cascade. There are many factors in blood clotting that can be studied by hormones - especially estrogen".



In addition, the enlarging uterus puts sway on pelvic blood vessels, which can lead to clotting. Some women are advised to set their movement to reduce the risk of clotting. Although it's unclear why women who sustain IVF have a greater risk of clotting, Hershlag speculates that it could be due to fertility treatments that snowball estrogen even beyond levels normally associated with pregnancy.



The genetics of women who need IVF to form may also be a factor. Worldwide, about 10 percent of couples experience infertility, according to background information in the study. In IVF, eggs are removed from a woman's body, fertilized by the man's sperm and returned to her body.



Since the world's initial "test tube" infant was born in 1978, about 5 million births have occurred after IVF. For the study, published Jan. 15 in the online copy of the periodical BMJ, researchers compared data on more than 23000 women who became pregnant after IVF with nearly 117000 women who conceived without assisted technology.



The researchers found that for women who had undergone IVF, the danger for a blood clot was 4,2 in 1000 women. For the women with sane pregnancies, the risk was 2,5 in 1000. Moreover, the chance was highest during the first trimester. Pulmonary embolism occurred in 19 women who had IVF (8,1 out of 10000) compared with 70 women who conceived normally (6 out of 10000), the office found.



The researchers admonition that the absolute risk of a pulmonary embolism in the midst women who had IVF was still slight - two to three additional cases in 10000 women. "We don't want patients to get scared. Even with IVF, getting a blood clot is still appealing rare". Also, most blood clots do not go to the lungs and can by far be treated and resolved example. Women at risk for clots can be treated with blood thinners that prohibit clots.

tag : women blood clotting embolism clots pregnancy pulmonary researchers estrogen

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