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The Cleveland Clinic

Pregnancy: Preeclampsia and Eclampsia

What Is Preeclampsia?

Also referred to as toxemia, preeclampsia is a condition that pregnant women can get. It is marked by high blood pressure accompanied with a high level of protein in the urine. Women with preeclampsia will often also have swelling in the feet, legs and hands. Preeclampsia, when present, usually appears during the second half of pregnancy, generally in the latter part of the second or in the third trimesters, although it can occur earlier.

What Is Eclampsia?

Eclampsia is the final and most severe phase of preeclampsia and occurs when preeclampsia is left untreated. In addition to the previously mentioned symptoms, women with eclampsia often have seizures. Eclampsia can cause coma and even death of the mother and baby and can occur before, during or after childbirth.

What Causes Preeclampsia and Eclampsia?

The exact causes of preeclampsia and eclampsia are not known, although some researchers suspect poor nutrition, high body fat or insufficient blood flow to the uterus as possible causes.

Who Is at Risk for Preeclampsia?

Preeclampsia is most often seen in first-time pregnancies and in pregnant teens and women over 40. Other risk factors include:

How Can I Tell if I Have Preeclampsia?

In addition to swelling, protein in the urine, and high blood pressure, symptoms of preeclampsia can include:



Next: Does Swelling During Pregnancy Mean I Have Preeclampsia? »

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Pregnancy: Preeclampsia and Eclampsia

What is pulmonary edema?

Edema, in general, means swelling. This typically occurs when fluid from inside blood vessels seeps outside the blood vessel into the surrounding tissues, causing swelling. This can happen either because of too much pressure in the blood vessels or not enough proteins in the bloodstream to hold on to the fluid in the plasma (the part of the blood that does not contain any blood cells).

Pulmonary edema is the term used when edema happens in the lungs. The immediate area outside of the small blood vessels in the lungs is occupied by very tiny air sacs called the alveoli. This is where oxygen from the air is picked up by the blood passing by, and carbon dioxide in the blood is passed into the alveoli to be exhaled out. Alveoli normally have a thin wall that allows for this air exchange, and fluids are usually kept out of the alveoli unless these walls lose their integrity.

Picture of the alveoli and lung
...

Read the Pulmonary Edema article »











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