Increased resistance of the uterine arteries is an obstruction in the rate of blood flow in the uterine arteries monitored under ultrasound.
Increased resistance of the uterine arteries can lead to impaired blood circulation. In early pregnancy, the fetus’s nutrition is mainly transported by the placenta and umbilical cord, which draw blood from the mother. If the uterine artery resistance increases during pregnancy, it can lead to the obstruction of nutrients transported to the fetus by the placenta, which can cause embryonic developmental delays, arrest, and even death.
Women in early pregnancy or with recurrent miscarriages who are found to have increased uterine artery resistance during pregnancy or in preparation for pregnancy need to be treated with anticoagulation as appropriate to promote and help the blood supply to the embryo, which is conducive to embryonic growth and development.