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Alternate Names : Dysmenorrhea. Menstrual cramps are the pain and cramping some women experience during their monthly periods. The term dysmenorrhea usually refers to pain and cramps severe enough to prevent normal activity






You are here : 3-RX.com > Medical Encyclopedia > Diseases and Conditions > Placenta Abruptio
      Category : Health Centers > Pregnancy and Childbirth

Placenta Abruptio

Alternate Names : Abruptio Placentae, Placental Abruption, Ablatio Placentae, Accidental Hemorrhage, Premature Separation of Placenta

Overview, Causes, & Risk Factors | Symptoms & Signs | Diagnosis & Tests | Prevention & Expectations | Treatment & Monitoring

Placenta abruptio during pregnancy is a condition in which the placenta, also known as the afterbirth, separates from the womb before the fetus is born. The placenta is a disc-shaped organ that provides nourishment and blood to a fetus. This most common form of this condition occurs in about 1 out of 150 deliveries. The severe form occurs in only 1 out of 500 to 750 births.

What is going on in the body?

In the normal birthing process, the placenta does not detach from the womb until after the infant is born. In placenta abruptio, blood vessels rupture and create a mass of blood, also called a hematoma. This hematoma shears off the blood vessels next to it, creating further bleeding and separation of the placenta.

There are two kinds of placenta abruptio, relating to where the bleeding occurs:

  • Concealed. This form means that bleeding occurs within the uterus and does not leave the cervix.
  • External. In this form, blood drains through the cervix and out of the body.
  • What are the causes and risks of the condition?

    It may not be easy to tell what caused placenta abruptio. In fact, doctors can detect an exact cause in less than 5 out of 100 cases. Some causes (though rare) can include:

  • abdominal trauma from an automobile accident or a fall
  • sudden loss in size of the uterus, due to loss of amniotic fluid, or delivery of a first twin
  • abnormally short umbilical cord
  • However, a woman is more at risk for this condition if she:

  • has had this condition before
  • has preeclampsia, which is a condition that develops during pregnancy as a result of hypertension
  • has eclampsia, which is toxemia during pregnancy that becomes severe
  • has chronic high blood pressure
  • is older
  • has uterine distension from multiple pregnancies, or an excess of amniotic fluid
  • has had more than four children
  • has diabetes
  • has other medical conditions, such as systemic lupus erythematosus
  • smokes cigarettes
  • has more than 14 alcoholic drinks per week
  • uses cocaine
  • has a history of an attempted internal version, a procedure in which the obstetrician tries changing the baby's position from breech to head first

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    Next section

       

    Placenta Abruptio: Symptoms & Signs

    Author: Eva Martin, MD
    Reviewer: Kathleen A. MacNaughton, RN, BSN
    Date Reviewed: 11/06/02



    An ectopic pregnancy occurs when a fertilized egg implants outside of the uterus. The most common site is within a fallopian tube. More rarely an embryo may implant within an ovary, in the cervix, or on the abdominal wall





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