What can cause high blood pressure while pregnant

Body Mass Index (BMI): A number calculated from height and weight. BMI is used to determine whether a person is underweight, normal weight, overweight, or obese.

Cesarean Birth: Birth of a fetus from the uterus through an incision (cut) made in the woman’s abdomen.

Chronic Hypertension: Blood pressure that is higher than normal for a person’s age, sex, and physical condition.

Complications: Diseases or conditions that happen as a result of another disease or condition. An example is pneumonia that occurs as a result of the flu. A complication also can occur as a result of a condition, such as pregnancy. An example of a pregnancy complication is preterm labor.

Corticosteroids: Drugs given for arthritis or other medical conditions. These drugs also are given to help fetal lungs mature before birth.

Diabetes Mellitus: A condition in which the levels of sugar in the blood are too high.

Diastolic Blood Pressure: The force of the blood in the arteries when the heart is relaxed. It is the lower reading when blood pressure is taken.

Fetus: The stage of human development beyond 8 completed weeks after fertilization.

Gestational Hypertension: High blood pressure that is diagnosed after 20 weeks of pregnancy.

HELLP Syndrome: A severe type of preeclampsia. HELLP stands for hemolysis, elevated liver enzymes, and low platelet count.

High Blood Pressure: Blood pressure above the normal level. Also called hypertension.

Hypertension: High blood pressure.

In Vitro Fertilization (IVF): A procedure in which an egg is removed from a woman’s ovary, fertilized in a laboratory with the man’s sperm, and then transferred to the woman’s uterus to achieve a pregnancy.

Kick Count: A record kept during late pregnancy of the number of times a fetus moves over a certain period.

Kidneys: Organs that filter the blood to remove waste that becomes urine.

Lupus: An autoimmune disorder that affects the connective tissues in the body. The disorder can cause arthritis, kidney disease, heart disease, blood disorders, and complications during pregnancy. Also called systemic lupus erythematosus or SLE.

Nutrients: Nourishing substances found in food, such as vitamins and minerals.

Obstetrician–Gynecologist (Ob-Gyn): A doctor with special training and education in women’s health.

Oxygen: An element that we breathe in to sustain life.

Placenta: An organ that provides nutrients to and takes waste away from the fetus.

Placental Abruption: A condition in which the placenta has begun to separate from the uterus before the fetus is born.

Preeclampsia: A disorder that can occur during pregnancy or after childbirth in which there is high blood pressure and other signs of organ injury. These signs include an abnormal amount of protein in the urine, a low number of platelets, abnormal kidney or liver function, pain in the upper abdomen, fluid in the lungs, or a severe headache or changes in vision.

Prenatal Care: A program of care for a pregnant woman before the birth of her baby.

Preterm: Less than 37 weeks of pregnancy.

Stroke: A sudden interruption of blood flow to all or part of the brain, caused by blockage or bursting of a blood vessel in the brain. A stroke often results in loss of consciousness and temporary or permanent paralysis.

Systolic Blood Pressure: The force of the blood in the arteries when the heart is contracting. It is the higher reading when blood pressure is taken.

Trimester: A 3-month time in pregnancy. It can be first, second, or third.

Ultrasound Exams: Tests in which sound waves are used to examine inner parts of the body. During pregnancy, ultrasound can be used to check the fetus.

Blood pressure is the force of your blood pushing against the walls of your arteries as your heart pumps blood. High blood pressure, or hypertension, is when this force against your artery walls is too high. There are different types of high blood pressure in pregnancy:

• Gestational hypertension is high blood pressure that you develop while you are pregnant. It starts after you are 20 weeks pregnant. You usually don't have any other symptoms. In many cases, it does not harm you or your baby, and it goes away within 12 weeks after childbirth. But it does raise your risk of high blood pressure in the future. It sometimes can be severe, which may lead to low birth weight or preterm birth. Some women with gestational hypertension do go on to develop preeclampsia.
• Chronic hypertension is high blood pressure that started before the 20th week of pregnancy or before you became pregnant. Some women may have had it long before becoming pregnant but didn't know it until they got their blood pressure checked at their prenatal visit. Sometimes chronic hypertension can also lead to preeclampsia.
• Preeclampsia is a sudden increase in blood pressure after the 20th week of pregnancy. It usually happens in the last trimester. In rare cases, symptoms may not start until after delivery. This is called postpartum preeclampsia. Preeclampsia also includes signs of damage to some of your organs, such as your liver or kidney. The signs may include protein in the urine and very high blood pressure. Preeclampsia can be serious or even life-threatening for both you and your baby.

What causes preeclampsia?

The cause of preeclampsia is unknown.

Who is at risk for preeclampsia?

You are at higher risk of preeclampsia if you:

• Had chronic high blood pressure or chronic kidney disease before pregnancy
• Had high blood pressure or preeclampsia in a previous pregnancy
• Have obesity
• Are over age 40
• Are pregnant with more than one baby
• Are African American
• Have a family history of preeclampsia
• Have certain health conditions, such as diabetes, lupus, or thrombophilia (a disorder which raises your risk of blood clots)
• Used in vitro fertilization, egg donation, or donor insemination

What problems can preeclampsia cause?

Preeclampsia can cause:

• Placental abruption, where the placenta separates from the uterus
• Poor fetal growth, caused by a lack of nutrients and oxygen
• Preterm birth
• A low birth weight baby
• Stillbirth
• Damage to your kidneys, liver, brain, and other organ and blood systems
• A higher risk of heart disease for you
• Eclampsia, which happens when preeclampsia is severe enough to affect brain function, causing seizures or coma
• HELLP syndrome, which happens when a woman with preeclampsia or eclampsia has damage to the liver and blood cells. It is rare, but very serious.

What are the symptoms of preeclampsia?

Possible symptoms of preeclampsia include:

• High blood pressure
• Too much protein in your urine (called proteinuria)
• Swelling in your face and hands. Your feet may also swell, but many women have swollen feet during pregnancy. So swollen feet by themselves may not be a sign of a problem.
• Headache that does not go away
• Vision problems, including blurred vision or seeing spots
• Pain in your upper right abdomen
• Trouble breathing

Eclampsia can also cause seizures, nausea and/or vomiting, and low urine output. If you go on to develop HELLP syndrome, you may also have bleeding or bruising easily, extreme fatigue, and liver failure.

How is preeclampsia diagnosed?

Your health care provider will check your blood pressure and urine at each prenatal visit. If your blood pressure reading is high (140/90 or higher), especially after the 20th week of pregnancy, your provider will likely want to run some tests. They may include blood tests other lab tests to look for extra protein in the urine as well as other symptoms.

What are the treatments for preeclampsia?

Delivering the baby can often cure preeclampsia. When making a decision about treatment, your provider take into account several factors. They include how severe it is, how many weeks pregnant you are, and what the potential risks to you and your baby are:

• If you are more than 37 weeks pregnant, your provider will likely want to deliver the baby.
• If you are less than 37 weeks pregnant, your health care provider will closely monitor you and your baby. This includes blood and urine tests for you. Monitoring for the baby often involves ultrasound, heart rate monitoring, and checking on the baby's growth. You may need to take medicines, to control your blood pressure and to prevent seizures. Some women also get steroid injections, to help the baby's lungs mature faster. If the preeclampsia is severe, you provider may want you to deliver the baby early.

The symptoms usually go away within 6 weeks of delivery. In rare cases, symptoms may not go away, or they may not start until after delivery (postpartum preeclampsia). This can be very serious, and it needs to be treated right away.

Topic Image