
Pregnant. Diagnosed With Amniotic Band Syndrome In Lower Placenta. What Are The Risks?

Thanks for the query.
Amniotic band syndrome can occur due to partial rupture of amniotic sac and there could be associated defect in blood circulation.
The prognosis depends on the location and severity of the constriction bands.
Bands wrapped around the peripheral organs like limbs can cause syndactyly, clubfoot etc.
If the bands are present near the head, neck, umbilical cord etc. they can be life threatening to the fetus.
Treatment options are plastic surgery to the affected part after birth. Rarely in case of involvement of vital organs fetal surgery can be considered.
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The risk depends on the part of the fetus which is located near lower part of placenta, where the band is located.
The placenta contains two layers amnion and chorion on fetal side. The partial rupture of amnion causes the syndrome whereas chorion remains intact. So the circulatory function of that part of the placenta can be disturbed to some extent.
But the severity mainly depends on the affected fetal parts.
Usually the defect will not be severe and the prognosis will be good. But rarely severe deformity can result with guarded prognosis.
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That can be seen in the ultrasound. In 21 weeks the position of the baby will change continuously due to the small size of the baby and comparatively more liquor.
So if the amniotic band forms that can affect the part which lies near to it at that time.
So it is difficult to predict the part that can get affected and the prognosis at present.
Better to undergo periodic ultrasound examinations to detect any possible problem at the earliest.
Wish you Good Health, If you are satisfied with my response please rate the answer after closing the discussion.
Take care.

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