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Gestational sac 15-35mm, embryo smaller than 25mm (corresponding to between 7 and 9+0 weeks of gestational age): Medication is recommended. Surgery or expectant management may be considered. Gestational sac smaller than 15-20mm, corresponding to a gestational age of less than 7 weeks: Expectant management or medication is preferable.
Transvaginal ultrasonography of an embryo at 5 weeks and 5 days of gestational age, with discernible cardiac activity (arrow). In the first trimester, cardiac activity can be visualized and the fetal heart motion quantified by obstetric ultrasonography.
The placenta (pl.: placentas or placentae) is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation.It plays critical roles in facilitating nutrient, gas and waste exchange between the physically separate maternal and fetal circulations, and is an important endocrine organ, producing hormones that regulate both maternal and fetal ...
The age of the pregnant woman is a significant risk factor. Miscarriage rates increase steadily with age, with more substantial increases after age 35. [58] In those under the age of 35, the risk is about 10% while it is about 45% in those over the age of 40. [1] Risk begins to increase around the age of 30. [7]
Eclampsia is the onset of seizures (convulsions) in a woman with pre-eclampsia. [1] Pre-eclampsia is a hypertensive disorder of pregnancy that presents with three main features: new onset of high blood pressure, large amounts of protein in the urine or other organ dysfunction, and edema.
Hyperemesis gravidarum is from the Greek hyper-, meaning excessive, and emesis, meaning vomiting, and the Latin gravidarum, the feminine genitive plural form of an adjective, here used as a noun, meaning "pregnant [woman]". Therefore, hyperemesis gravidarum means "excessive vomiting of pregnant women".
The abortion method depends upon the gestational age of the embryo or fetus, which gains mass as the pregnancy progresses. [ 42 ] [ 43 ] Abortion laws , regional availability, and the personal preference of the women and her doctor may inform the women's choice of a specific abortion procedure.
There are two ways to determine small for gestational age (SGA) infants. Many research studies agree that SGA babies are those with birth weight or crown-heel length measured at two standard deviations or more below the mean of the infant's gestational age, based on data consisting of a reference population.