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Pre-eclampsia - staying alert

Detection and treatment are the keys to reining-in the risks from this pregnancy illness


Posted: 13 February 2012
by ThinkBaby

Pre-eclampsia, or toxemia, is a blood pressure condition that only occurs during pregnancy or very soon after birth. It almost always begins after week 20 and more often after week 30.

Its main characteristics are high blood pressure and protein in urine and there are several other symptoms. However, many women with pre-eclampsia can feel perfectly well, particularly in the early stages of the illness. This is unfortunate as if left untreated, the condition can pose a serious risk to both mum and baby.

A simple urine test can pick up the condition and proper pre-natal care can prevent more serious complications developing, so it's important to be alert to the warning signs and attend all your pre-natal checks.

What is pre-eclampsia?

Pre-eclampsia prevents the placenta from working properly, limiting the supply of food and oxygen to baby and may also affect the mum's kidneys, liver, lungs, brain and blood clotting system. As the name suggests, pre-eclampsia may develop into full eclampsia, leading to fits and coma, and may be fatal, but this is thankfully very rare.

Before you start to panic, remember that most women with pre-eclampsia go on to deliver healthy babies. And the chances of you getting it at all are fairly low - between 3 and 5% of pregnancies are affected by it.

What are the signs of pre-eclampsia?

As some women can experience no obvious symptoms of pre-eclampsia, it's essential to go to your regular pregnancy health checks to have your blood pressure and urine checked. There are other reasons why you may have high blood pressure or protein in your urine, so having one of these symptoms doesn't mean that you have pre-eclampsia. Up to 10% of pregnant women develop high blood pressure during pregnancy, which is known as gestational hypertension. If you're diagnosed with high blood pressure then your doctor should keep a close watch on you and conduct more frequent urine tests for protein.

Symptoms you could notice (but may not) are:

• Swelling in hands, feet and face, particularly if sudden
• Severe headaches
• Flashing lights or spots before the eyes
• Frequent nausea and vomiting
• Pain in the upper part of the abdomen

Any one of these symptoms can be present without pre-eclampsia and, in particular, some swelling is to be expected during pregnancy and some pregnant women are more prone to headaches. Even so, it's still sensible to report any of these symptoms to your doctor as soon as you can.

How is it treated?

Mum and baby will be closely monitored to see how the condition is affecting them both. Milder cases may be treatable from home, and mums with mild pre-eclampsia will be advised to cut down their activities to a minimum, but hospitalisation and complete bed-rest may also be necessary. Drugs may be prescribed to control blood pressure but the only proper cure for pre-eclampsia is the birth of the baby, so depending on how serious the condition is for mum and baby, an early delivery in the last weeks of pregnancy by induction or by caesarean section is quite likely. In a few cases where pre-eclampsia develops early and poses a significant risk to mum and baby, premature delivery may be the only option. Following delivery all symptoms should disappear within two weeks.

What are the risks of getting pre-eclampsia next time?

If you've had pre-eclampsia in an earlier pregnancy you do have a higher risk of developing the condition again, but there's also a very good chance that you'll have a healthy, uncomplicated pregnancy. With each subsequent pre-eclampsia pregnancy the risk of a repeat in the next pregnancy increased, but it doesn't necessarily follow that you will suffer again.

Read more about late pregnancy and birth

                                  Labour: the truth           What to expect after birth         Work your pelvic floor       Last minute essentials


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