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Placenta praevia or placenta previa is when the placenta attaches inside the uterus but in a position near or over the cervical opening. [1] Symptoms include vaginal bleeding in the second half of pregnancy. [1] The bleeding is bright red and tends not to be associated with pain. [1]
Besides placenta previa and placental abruption, uterine rupture can occur, which is a very serious condition leading to internal or external bleeding. Bleeding from the fetus is rare, but may occur with two conditions called vasa previa and velamentous umbilical cord insertion where the fetal blood vessels lie near the placental insertion site unprotected by Wharton's jelly of the cord. [11]
667 Retained placenta or membranes, without hemorrhage; 668 Complication (medicine) of the administration of anesthetic or other sedation in labor (childbirth) and delivery; 669 Complication (medicine) Other complications of labor and delivery, not elsewhere classified. 669.5 Forceps delivery or vacuum extractor delivery without mention of ...
Placenta praevia refers to when the placenta of a growing foetus is attached abnormally low within the uterus. Intermittent antepartum haemorrhaging occurs in 72% of women living with placenta praevia. [6] The severity of a patient's placenta praevia depends on the location of placental attachment;
It is used to differentiate whether the blood coming out of vagina is of the mother or fetus during delivery i.e, placenta previa versus vasa previa. It is based on the principle that fetal HbF is resistant to acids and alkali whereas the mother's blood which has HbA is sensitive to acid and alkaline.
Anatomy scan image of a human placenta and umbilical cord (colour Doppler rendering) showing central placement of the cord in the placenta and three vessels in the cord, which is the normal physiology. A standard anatomy scan typically includes: [4] Fetal number, including number of amnionic sacs and chorionic sacs for multiple gestations
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In theory, CPM is when the trisomic cells are found only in the placenta. CPM is detected in approximately 1-2% of ongoing pregnancies that are studied by chorionic villus sampling (CVS) at 10 to 12 weeks of pregnancy. Chorionic villus sampling is a prenatal procedure which involves a placental biopsy.