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Health & Pregnancy

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Pre-eclampsia and Eclampsia: Causes and Treatments

Signs and Symptoms of Pre-Eclampsia and Eclampsia

WebMD Feature

Pre-eclampsia and eclampsia are forms of high blood pressure that occur during pregnancy and are accompanied by protein in the urine and edema (swelling). As the names suggest, these two disorders are related. Pre-eclampsia, sometimes called toxemia of pregnancy, may develop into the more severe eclampsia, which is pre-eclampsia together with seizure. These conditions usually develop during the second half of pregnancy (after 20 weeks), though sometimes they develop shortly after birth, and, in very rare situations, they occur before 20 weeks of pregnancy.

You are at increased risk of developing pre-eclampsia if:

  • This is your first pregnancy.
  • Your mother or sister had pre-eclampsia or eclampsia during pregnancy.
  • You are carrying more than one baby.
  • You are a teenager.
  • You are over 40 years old.
  • You already have high blood pressure, kidney disease or diabetes.
  • You are a smoker.
  • You are obese.
  • You suffer from malnutrition.
  • You carry a baby with so-called "non-immune hydrops."

If you are pregnant, increasing blood pressure may not make you feel different until it is dangerously high. So you should watch for signs of pre-eclampsia. If you develop pre-eclampsia, the first thing you notice may be rapid weight gain, on the order of two to five pounds in a single week. Many pregnant women have swelling of their feet or legs; however, swelling of your face or arms may be a sign of pre-eclampsia. If pre-eclampsia progresses from mild to moderate or severe, you may begin to notice other symptoms. Headache, vision changes and abdominal pain should prompt concern.

It is dangerous to allow blood pressure to stay high during pregnancy. High blood pressure may interfere with the placenta's ability to deliver oxygen and nutrition to your fetus, so your baby may be born weighing less than normal and may have other health problems. If your blood pressure continues to get higher and higher, your kidneys may have trouble functioning. You may have changes in the makeup of your blood, such as destruction of red blood cells (causing anemia), disturbed liver function, and decreased platelets (blood cells involved in clotting). Too few platelets can increase your risk of bleeding uncontrollably during delivery or even spontaneously. Your blood pressure may continue to climb, and you may develop seizures.

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