1. Pre-eclampsia affects around 1 in 10 pregnant women, and is a condition where the placenta has a shortage of blood, either because the demands on it are particularly high (for example if you’re having twins) or the arteries in the womb didn’t enlarge as much as they should have when the placenta was formed.
2. There are often no outward signs of pre-eclampsia – the most common indicators are raised blood pressure and protein in the urine.
3. Every woman is potentially at risk from pre-eclampsia, although the risk increases if there is a family history of pre-eclampsia, you are obese, are under 20 or over 35, or have have diabetes, kidney disease or existing high blood pressure.
4. Pre-eclampsia may mean your baby grows slower than normal, and can starve him of oxygen. It can also lead to complications such as convulsions, stroke and organ failure in the mother and, in extreme cases, can be fatal. There are no known long-term health problems for babies, unless they suffer from extreme oxygen deprivation in the womb or are born very prematurely.
5. If you have severe pre-eclamsia, you’ll probably be admitted to hospital until your baby is born. You may be given anti-hypertensive drugs to control your blood pressure and anti-convulsants to ward off fits, and your baby will be monitored closely.
6. There’s no cure for pre-eclampsia. The longer your baby stays inside you, the greater the risks to both him and you.
7. If you have pre-eclampsia in your first pregnancy, you have a 5% chance of getting it again. If you didn’t have pre-eclampsia in your first pregnancy, it’s unlikely you’ll develop it in the future.
8. Pre-eclampsia can develop any time after 20 weeks, and trhe majority of women who develop pre-eclampsia are diagnosed after 36 weeks.