Platsentotsentez - indications and contraindications


1. When appointed?

2. Contraindications

3. How to prepare?

Platsentotsentez - is invasive prenatal diagnosis, which is to obtain a sample of placental tissue by puncturing the anterior abdominal wall of a special thin needle puncture.Platsentotsentez help diagnose Down syndrome, Edwards, Patau and other chromosomal diseases accompanied by mental retardation or gross deformities.

Platsentotsentez performed under local or general anesthesia, with short-term hospitalization or outpatient.needle puncture is performed under mandatory supervision by ultrasound.Then, without touching the fruit, it is material for the study of the fence.After the manipulation is pregnant under the supervision of specialists in the two to three days.In order to prevent possible complications to the patient may be given special medicines.Optimal timing for the implementation of platsentotsenteza - 12-18 weeks.Diagnostic results will be ready in about 2-3 days.

platsentotsenteza Complications occur in

rare cases.This is a significant advantage of this method issledovaniya.Nedostatok - large gestational age at which the event is held issledovanie.V confirm the diagnosis of complex diseases, interrupt beremennostina such term is fraught with complications and requires prolonged hospitalization.

When he appointed?

Indications for platsentotsenteza:

  • detection of congenital diseases by ultrasound screening.
  • impossibility of other invasive diagnostic techniques, for example, in patients with severe oligohydramnios (insufficient amniotic fluid) it is forbidden to carry out an amniocentesis.
  • Age mother and father older than 35 and 45 years, respectively (increased risk of uncontrolled chromosomal rearrangements).
  • X-ray examinations in early pregnancy.
  • Abnormalities in carrying out biochemical screening.
  • presence of one of the parents hereditary diseases, chromosomal rearrangement, or malformation.
  • presence of relatives of hereditary abnormalities (spinal amyotrophy, cystic fibrosis, phenylketonuria).
  • Reception embryotoxic drugs (cytostatics, antibiotics) in early pregnancy.
  • need to identify the sex of the child, as some of the disease linked to the X chromosome and may appear only in boys (optic atrophy, hemophilia A and B).
  • Adverse effects of some environmental factors (inhalation of vapor toxins, radiation exposure, and others.) In early pregnancy.
  • A history of stillbirth, primary infertility in the couple, miscarriage, primary amenorrhea.


contraindications to platsentotsenteza is the threat of abortion, the feverish condition of the woman, inflammatory diseases abdominal skin, pronounced adhesions in the pelvic organs, fibroids larger sizes on the front wall of the uterus, exacerbation of chronic diseases pregnant.Relative contraindication is the presence of a pregnant woman with HIV infection, as in this case increases the risk of transmitting it to the fetus.

How to prepare?

eve diagnostic woman should undergo laboratory examination (smears, blood tests, and so on.).Also before the procedure is carried out ultrasound to determine the placental localization, specification of the duration of pregnancy, uterine tone state fetus viability.Immediately prior to manipulation produce processing the surgical field.

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