Hormones that are designed to increase the number of eggs, increase the risk of blood clots, writes The Telegraph. These hormonal means a composition similar to that used in hormonal therapy drugs and similar drugs that are used in the contraceptives.
These are the data held in the Swedish study, which was attended by about 25,000 women who had become pregnant and given birth to children through in vitro fertilization. Data obtained from these women were compared with the data of women who gave birth naturally. As it turned out, women who have given birth in the "IVF pregnancy" by 77 percent more likely to develop thrombosis than women with natural pregnancies.
A particularly high risk of thrombosis in ECO mothers in the first trimester, when the risk is increased 7 times. In IVF, the risk of pulmonary embolism increases in several times. The study showed that over 10,000 cases of IVF pregnancy was identified 3 cases of pulmonary embolism, whereas in normal pregnancy, the frequency of pulmonary embolism was 0.4 cases out of 10,000 pregnancies.
That is why Professor Peter Henriksson of the Karolinska Institute urged doctors to be more vigilant when monitoring IVF pregnant women.