Causes of uterine artery blood flow deficiency

Pregnancy is a period that every girl must go through. The uterus is where the fetus grows, and the uterine artery can provide nutrients to the uterus, thus ensuring the healthy growth of the fetus. Therefore, women must pay attention to maintenance during pregnancy. At the same time, different examinations should be done at different times. In the first 3 months of pregnancy, you should also take some folic acid and calcium tablets. Folic acid can prevent congenital malformations in children. At the same time, you should understand the cause of the lack of blood flow in the uterine artery.

The uterus is the cradle of life, and the uterine artery and its branches provide the source of life for this cradle. Transport nutrients to the uterus to ensure embryonic development. ①What is uterine artery blood flow test? Uterine artery blood flow test refers to the use of ultrasound to measure the dynamic parameters of uterine artery blood flow, including: pulsatility index (PI), resistance index (RI), systolic peak flow velocity/diastolic flow velocity (S/D). Blood flow parameters change regularly with the menstrual cycle. Generally speaking, during the luteal phase, uterine artery blood flow increases, which is conducive to embryo implantation. ②How to check uterine artery blood flow: Scan the cross-section of the uterus in a fan-shaped manner under two-dimensional vaginal ultrasound, and detect an echo-free signal of about 3-4mm near the fundus of the uterus. Add CDFI to display the uterine artery blood flow signal, and then place the spectrum (PW) sampling volume at the uterine artery blood flow to take samples. Obtain 3-5 consecutive, stable, and uniform blood flow images. The uterine artery systolic velocity, diastolic velocity and vascular resistance index were measured and calculated.

③The significance of checking uterine artery blood flow: uterine artery blood flow can reflect the blood perfusion of the uterus. If the uterine artery blood flow is abnormal, it may lead to embryonic maldevelopment, recurrent miscarriage, repeated implantation failure, etc. In diseases such as hypertension, uterine vascular malformations, uterine fibroids, adenomyosis, and premature ovarian failure, the uterine artery blood flow will also show certain pathological changes. Uterine artery blood flow testing can also be used to predict pregnancy outcome. Predict pregnancy complications, etc. Uterine artery blood flow is a very important physiological parameter in the ultrasound index for evaluating endometrial receptivity. Uterine artery blood flow was negatively correlated with endometrial thickness. The lower the PI and RI values, the better the ovarian and uterine perfusion, and the higher the embryo implantation rate. In IVF-ET, the pregnancy rate is higher in those with lower PI on the oocyte retrieval day. In addition, uterine artery blood flow detection also has a high predictive value for the onset of preeclampsia. In normal pregnancy, placental blood flow appears as low impedance and high blood flow under ultrasound. The number of uterine artery branch remodeling is reduced in patients with eclampsia. Uterine artery blood flow detection in mid-pregnancy showed high resistance and low diastolic blood flow characteristics. RI, PI, and S/D will all increase.

④Which groups of people can undergo uterine artery blood flow examination? Women of childbearing age who wish to have children, women with recurrent miscarriage due to embryo arrest, and patients with a history of adverse pregnancy can all undergo uterine artery blood flow tests to prevent problems before they occur. ⑤What should I do if the uterine artery examination is abnormal? If the uterine artery blood flow test is abnormal, anticoagulation, volume expansion, blood pressure reduction and other treatments should be carried out promptly under the guidance of a doctor to ensure an adequate supply of the source of life.

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