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Couvelaire uterus is a phenomenon where the retroplacental blood may penetrate through the thickness of the wall of the uterus into the peritoneal cavity. This may occur after abruptio placentae. The hemorrhage that gets into the decidua basalis ultimately splits the decidua, and the haematoma may remain within the decidua or may extravasate ...
Chorionic hematoma is the pooling of blood between the chorion, a membrane surrounding the embryo, and the uterine wall. [2] It occurs in about 3.1% of all pregnancies , [ 2 ] it is the most common sonographic abnormality and the most common cause of first trimester bleeding .
Gross pathology of a uterus which has been opened to show a placental abruption, with a hematoma separating the placenta from the uterus. In the vast majority of cases, placental abruption is caused by the maternal vessels tearing away from the decidua basalis, not the fetal vessels. The underlying cause is often unknown.
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]
Detachment causes antepartum haemorrhaging at the location of abruption. Depending on the site of detachment, haemorrhaging may or may not be apparent. If abruption occurs behind the placenta where blood cannot escape through the cervix, blood will pool and form a retroplacental clot. Only when the site of detachment occurs on the side facing ...
Gynecologic hemorrhage represents excessive bleeding of the female reproductive system. [ 1 ] [ 2 ] Such bleeding could be visible or external, namely bleeding from the vagina , or it could be internal into the pelvic cavity or form a hematoma .
Severe acute bleeding, such as caused by ectopic pregnancy and post-partum hemorrhage, leads to hypovolemia (the depletion of blood from the circulation), progressing to shock. [41] This is a medical emergency and requires hospital attendance and intravenous fluids , usually followed by blood transfusion .
Kleihauer test, showing foetal red blood cells in rose-pink color, while adult red blood cells are only seen as "ghosts". The Kleihauer–Betke test is a blood test used to measure the amount of foetal hemoglobin transferred from a foetus to its mother's bloodstream. [4] It takes advantage of the differential resistance of foetal hemoglobin to ...