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As the fetal hypothalamus matures, the activation of the hypothalamic–pituitary–adrenal (HPA) axis initiates labor through two hormonal mechanisms. The end pathway of both mechanisms lead to contractions in the myometrium, a mechanical cause of placental separation, which is due to the sheer force and contractile and involutive changes that occur within the uterus, distorting the placentome.
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Retained products of conception is where products of conception remain in the uterus after childbirth, medical abortion or miscarriage (also known as spontaneous abortion). [1] Miscarriage with retained products of conception is termed delayed when no or very little products of conception have been passed, and incomplete when some products have ...
The miscarriage may be evidenced by a clot-like material passing through and out of the vagina. [157] About 80% of miscarriages occur in the first 12 weeks of pregnancy. The underlying cause in about half of cases involves chromosomal abnormalities. [158] Stillbirth is defined as fetal death after 20 or 28 weeks of pregnancy, depending on the ...
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Gross pathology of chorionic villi after a miscarriage. In early miscarriage, the finding of chorionic villi in vaginal expulsions is often the only definite confirmation that there was an intrauterine pregnancy rather than an ectopic pregnancy.
Losing a pregnancy is hard. These tips can help how you manage the issue at work. iStock. When my pregnancy ended in an unexpected loss, I went from butterflies while anticipating my first scan to ...