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Placental abruption causes blood loss from the mother and loss of oxygen and nutrients to the placenta occasionally leading to preterm labour. [14] Other causes of placental abruption can be abdominal trauma or sudden decompression of amniotic fluid, however it is not uncommon for the cause of placental abruption to be unknown. [15]
[1] [4] Miscarriage before 6 weeks of gestation is defined as biochemical loss by ESHRE. [ 13 ] [ 14 ] Once ultrasound or histological evidence shows that a pregnancy has existed, the term used is clinical miscarriage , which can be "early" (before 12 weeks) or "late" (between 12 and 21 weeks). [ 13 ]
Bleeding before childbirth is that which occurs after 24 weeks of pregnancy. [4] Bleeding may be vaginal or less commonly into the abdominal cavity. Bleeding which occurs before 24 weeks is known as early pregnancy bleeding. Causes of bleeding before and during childbirth include cervicitis, placenta previa, placental abruption and uterine rupture.
In the Western world, maternal deaths due to placental abruption are rare. The fetal prognosis is worse than the maternal prognosis; approximately 12% of fetuses affected by placental abruption die. 77% of fetuses that die from placental abruption die before birth; the remainder die due to complications of preterm birth. [9]
PROM occurring before 37 weeks (PPROM) is one of the leading causes of preterm birth. Thirty to 35% of all preterm births are caused by PPROM. [ 10 ] This puts the fetus at risk for the many complications associated with prematurity such as respiratory distress, brain bleeds, infection, necrotizing enterocolitis (death of the fetal bowels ...
Others have defined the condition as blood loss of greater than 1000 mL after either delivery method, or any amount of blood loss with signs and symptoms of hypovolemia. [7] Secondary postpartum bleeding is that which occurs after the 24 hours up to 12 weeks after childbirth. [7]
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In the immediate postpartum period (puerperium), 87% to 94% of women report at least one health problem. [8] [9] Long-term health problems (persisting after six months postpartum) are reported by 31% of women. [10] In 2016, complications of pregnancy, childbirth, and the puerperium resulted globally in 230,600 deaths, down from 377,000 deaths ...