Eclampsia
Pregnancy - eclampsia; Preeclampsia - eclampsia; High blood pressure - eclampsia; Seizure - eclampsia; Hypertension - eclampsia
Eclampsia is the new onset of seizures or coma in a pregnant woman with preeclampsia. These seizures are not related to an existing brain condition.
Seizures
A seizure is the physical findings or changes in behavior that occur after an episode of abnormal electrical activity in the brain. The term "seizure...
Causes
Doctors do not know exactly what causes eclampsia. Factors that may play a role include:
- Blood vessel problems
- Brain and nervous system (neurological) factors
- Diet
- Genes
Eclampsia follows a condition called preeclampsia . This is a complication of pregnancy in which a woman has high blood pressure and other findings.
Preeclampsia
Preeclampsia is when a pregnant woman develops high blood pressure and protein in the urine after the 20th week of pregnancy.
Most women with preeclampsia do not go on to have seizures. It is hard to predict which women will. Women at high risk of seizures often have severe preeclampsia with findings such as:
- Abnormal blood tests
- Headaches
- Very high blood pressure
- Vision changes
- Abdominal pain
Your chance of getting preeclampsia increases when:
- You are 35 or older.
- You are African American.
- This is your first pregnancy.
-
You have
diabetes
, high blood pressure, or kidney disease.
Diabetes
Diabetes is a chronic disease in which the body cannot regulate the amount of sugar in the blood.
- You are having more than 1 baby (such as twins or triplets).
- You are a teen.
Symptoms
Symptoms of eclampsia include:
- Seizures
- Severe agitation
- Unconsciousness
Most women, but not all, will have symptoms of preeclampsia before the seizure.
- Headaches
- Nausea and vomiting
- Stomach pain
- Swelling of the hands and face
- Vision problems, such as loss of vision, blurred vision, double vision, or missing areas in the visual field
Exams and Tests
The health care provider will do a physical exam to look for causes of seizures. Blood pressure and breathing rate will be checked regularly.
Blood and urine tests may be done to check:
- Blood clotting factors
-
Creatinine
Creatinine
The creatinine blood test measures the level of creatinine in the blood. This test is done to see how well your kidneys are working. Creatinine can ...
- Hematocrit
-
Uric acid
Uric acid
Uric acid is a chemical created when the body breaks down substances called purines. Purines are found in some foods and drinks. These include live...
-
Liver function
Liver function
Liver function tests are common tests that are used to see how well the liver is working. Tests include:AlbuminAlpha-1 antitrypsin Alkaline phosph...
-
Platelet count
Platelet count
A platelet count is a lab test to measure how many platelets you have in your blood. Platelets are parts of the blood that help the blood clot. The...
- Protein in the urine
Treatment
The main treatment to prevent severe preeclampsia from progressing to eclampsia is giving birth to the baby. Letting the pregnancy go on can be dangerous for you and the baby.
You may be given medicine to prevent seizures. These medicines are called anticonvulsants.
Your provider may prescribe medicine to lower high blood pressure. If your blood pressure stays high, delivery may be needed, even if it is before the baby is due.
Possible Complications
Women with eclampsia or preeclampsia have a higher risk of:
-
Separation of the placenta (
placenta abruptio
)
Placenta abruptio
The placenta is the organ that supplies food and oxygen to the baby during pregnancy. Placental abruption is when the placenta detaches from the wal...
- Premature delivery that leads to complications in the baby
- Blood clotting problems
When to Contact a Medical Professional
Call your provider or go to the emergency room if you have any symptoms of eclampsia or preeclampsia. Emergency symptoms include seizures or decreased alertness.
Seek medical care right away if you have any of the following:
- Bright red vaginal bleeding
- Little or no movement in the baby
- Severe headache
- Severe pain in the upper right abdominal area
- Vision loss
- Nausea or vomiting
Prevention
Getting medical care during your entire pregnancy is important in preventing complications. This allows problems such as preeclampsia to be detected and treated early.
Getting treatment for preeclampsia may prevent eclampsia.
References
American College of Obstetricians and Gynecologists; Task Force on Hypertension in Pregnancy. Hypertension in pregnancy. Practice Guideline WQ244. 2013. Obstet Gynecol . 2013;122(5):1122-31. PMID: 24150027 www.ncbi.nlm.nih.gov/pubmed/24150027 .
Houry DE, Salhi BA. Acute complications of pregnancy. In: Marx JA, Hockberger RS, Walls RM, et al, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice . 8th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 178.
Markham KB, Funai EF. Pregnancy-related hypertension. In: Creasy RK, Resnik R, Iams JD, Lockwood CJ, Moore TR, Greene MF, eds. Creasy and Resnik's Maternal-Fetal Medicine: Principles and Practice . 7th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 48.
Sibai BM. Hypertension. In: Gabbe SG, Niebyl JR, Simpson JL, et al, eds. Obstetrics: Normal and Problem Pregnancies . 6th ed. Philadelphia, PA: Elsevier Saunders; 2012:chap 35.
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Preeclampsia - illustration
Preeclampsia is the development of swelling, elevated blood pressure, sudden and rapid weight gain and protein in the urine during pregnancy. The exact cause is unknown, but it occurs in approximately 5% of the population.
Preeclampsia
illustration
Review Date: 4/5/2016
Reviewed By: Irina Burd, MD, PhD, Associate Professor of Gynecology and Obstetrics at Johns Hopkins University School of Medicine, Baltimore, MD. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.