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  2. Sims' position - Wikipedia

    en.wikipedia.org/wiki/Sims'_position

    The Sims position, or left lateral Sims position, named after the gynaecologist J. Marion Sims, is usually used for rectal examination, treatments, enemas, and examining patients for vaginal wall prolapse. [1] [2] The Sims Position is described as in the person lying on the left side, left hip and lower extremity straight, and right hip and ...

  3. Placenta praevia - Wikipedia

    en.wikipedia.org/wiki/Placenta_praevia

    The following have been identified as risk factors for placenta previa: Previous placenta previa (recurrence rate 4–8%), [13] caesarean delivery, [14] myomectomy [10] or endometrium damage caused by D&C. [13] Women who are younger than 20 are at higher risk and women older than 35 are at increasing risk as they get older.

  4. Position (obstetrics) - Wikipedia

    en.wikipedia.org/wiki/Position_(obstetrics)

    In obstetrics, position is the orientation of the fetus in the womb, identified by the location of the presenting part of the fetus relative to the pelvis of the mother. . Conventionally, it is the position assumed by the fetus before the process of birth, as the fetus assumes various positions and postures during the course of chil

  5. Placenta accreta spectrum - Wikipedia

    en.wikipedia.org/wiki/Placenta_accreta_spectrum

    An important risk factor for placenta accreta is placenta previa in the presence of a uterine scar. Placenta previa is an independent risk factor for placenta accreta. Additional reported risk factors for placenta accreta include maternal age and multiparity, other prior uterine surgery, prior uterine curettage, uterine irradiation, endometrial ablation, Asherman syndrome, uterine leiomyomata ...

  6. Placentation - Wikipedia

    en.wikipedia.org/wiki/Placentation

    The placenta can be defined as an organ formed by the sustained apposition or fusion of fetal membranes and parental tissue for physiological exchange. [1] This definition is modified from the original Mossman (1937) [2] definition, which constrained placentation in animals to only those instances where it occurred in the uterus.

  7. Vasa praevia - Wikipedia

    en.wikipedia.org/wiki/Vasa_praevia

    Risk factors include low-lying placenta, in vitro fertilization. [1] Vasa praevia occurs in about 0.6 per 1,000 pregnancies. [1] The term "vasa previa" is derived from the Latin; "vasa" means vessels and "previa" comes from "pre" meaning "before" and "via" meaning "way". In other words, vessels lie before the fetus in the birth canal and in the ...

  8. Uterine inversion - Wikipedia

    en.wikipedia.org/wiki/Uterine_inversion

    Risk factors include pulling on the umbilical cord or pushing on the top of the uterus before the placenta has detached. [1] Other risk factors include uterine atony, placenta previa, and connective tissue disorders. [1] Diagnosis is by seeing the inside of the uterus either in or coming out of the vagina. [2] [6]

  9. Fetal circulation - Wikipedia

    en.wikipedia.org/wiki/Fetal_circulation

    The function of these shunts is to bypass the lungs and maintain proper circulation to important fetal tissue. In the fetal stage, the lungs fill with fluid and collapse because the fetus is within the amniotic sac and the placenta is providing the oxygen it needs to grow.