Violation of placental blood flow is a dangerous complication of pregnancy, which occurs more often in later terms. Such violations are divided into 3 degrees of severity.
- The first degree , which, in turn, is divided into A and B:
- Disruption of placental blood flow 1a degree - only between the uterus and the placenta.
- Disruption of placental blood flow 1b degree - only between the placenta and the fetus.
Causes of impaired placental blood flow
Violation of the blood flow between the woman's uterus and the placenta can be caused by a number of causes that cause placental insufficiency:
- increased maternal blood pressure (especially with late pregnancy gestosis);
- Inflammation of the lungs and any viral or bacterial infections in a woman;
- intrauterine infections in the fetus;
- kidney disease in a woman;
- diabetes;
- systemic diseases of the pregnant.
Diagnosis of violations of placental blood flow
Find out that the placenta blood flow is reduced, you can by doplerogram of the vessels of the placenta. Dopplerometry of uteroplacental blood flow is carried out at:
- the presence of the mother of diseases that can cause a violation;
- with a syndrome of intrauterine growth retardation;
- congenital malformations and chromosomal diseases of the fetus;
- premature aging of the placenta ;
- multi- and water scarcity;
- symptoms of fetal hypoxia.
With doplerometry, changes in the frequency of ultrasonic oscillations are recorded depending on the blood flow velocity in the vessels from which the sensor signal is reflected and recorded as a curve. Carry out dopplerometry as vessels of uterine arteries, and vessels of the umbilical cord of the fetus.
The main indicators that determine this and the tables are compared with the normal values for this period of pregnancy:
- pulse index (PI);
- Resistance index (IR);
- systolic-diastolic ratio (SDO).
Treatment and prevention of disorders of uteroplacental blood flow
Prevention of violations is the timely detection of possible risk groups for this complication and the timely treatment of diseases that cause this complication. For the treatment of violations apply:
- drugs that reduce blood clotting and improve microcirculation;
- drugs that increase the stability of the fetal brain to hypoxia;
- drugs that relax the uterus;
- if necessary - antiviral and antibacterial drugs, immunomodulators.
Of the general recommendations - the proper nutrition of women, reducing physical and emotional stress.
And at 3 degrees of disturbance of a blood flow carry out an emergency delivery.