NCMA219

    Cards (8)

    • Anomalies of the Placenta
      • Placenta Succenturiata
      • Placenta Circumvallata
      • Placenta Accreta
      • Battledore Placenta
      • Velamentous Insertion of the Cord
      • Vasa Previa
    • Placenta Succenturiata
      • weighs approximately 500 g and is 15 to 20 cm in diameter and 1.5 to 3.0 cm thick.
      • has one or more accessory lobes
      • not a fetal abnormality
      • small lobes may be retained in the uterus after birth leading to severe maternal hemorrhage.
    • Placenta Circumvallata
      • the fetal side of the placenta is covered with chorion.
      • umbilical cord enters the placenta at the usual midpoint, and large vessels spread out from there.
    • Placenta Accreta
      • refers to an unusually deep attachment
      • Hysterectomy or treatment with methotrexate to destroy the still-attached tissue is the recommended treatment of choice.
    • Battledore Placenta
      • refers to the cord that is inserted marginally rather than centrally.
      • This is a rare anomaly and it has no known clinical significance.
    • Velamentous Insertion of the Cord
      • instead of entering the placenta directly, separates into small vessels that reach the placenta by spreading across a fold of amnion.
      • most commonly found with multiple gestations.
    • Vasa Previa
      - The vessels may tear with cervical dilatation
    • HYDRAMNIOS (POLYHYDRAMNIOS)
      • Hydramnios is caused by an excessive amount of amniotic fluid
      • Normal amniotic fluid 500-1200 cc
      • Hydramnios 2000 cc over
      • Oligohydramnios less than 300 cc
      • The amount of amniotic fluid present is controlled in part by fetal urination, swallowing, and breathing
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