Placenta previa: Management. Ferri FF. Placenta previa. In: Ferri's Clinical Advisor Elsevier; Merck Manual Professional Version. Accessed Feb. Butler Tobah YS expert opinion. Mayo Clinic. March 1, Arulkumaran SS, et al.
Placenta praevia and the placenta accreta spectrum. In: Munro Kerr's Operative Obstetrics. Placenta praevia is a complication that can happen during pregnancy. It's also known as 'low-lying placenta'. It is not common. Placenta praevia happens when the placenta afterbirth is partially or completely blocking off your cervix the neck of your womb.
This can lead to heavy bleeding in pregnancy or during childbirth. If you have placenta praevia, your baby will probably be delivered by caesarean section. You'll also need to take extra care during your pregnancy. Contact your maternity unit or hospital immediately if you have been told you have placenta praevia and have:. The position of the placenta will be recorded at your ultrasound scan around weeks 18 to 22 of pregnancy. If you have a low-lying placenta it will be diagnosed at this stage.
A rapid loss of amniotic fluid, which cushions the baby in the uterus, could also be the cause. Hypertension or any high blood pressure-related conditions like preeclampsia. It is not something you can prevent, Townsel says, but you can tamp down the risks by avoiding smoking and drug use. If any trauma to the abdomen occurs, seek a doctor immediately. Sometimes the placenta attaches to the uterus too well. It may even reach the bladder or wrap around the rectum.
Sometimes part or all of it hangs on. Removing it can lead to severe blood loss after a delivery. Occasionally, a doctor must perform a hysterectomy in such a case. Placenta percreta happens when the placenta grows through the uterine wall.
The cause is unknown, but risks are higher for those who have had prior surgery on the uterus previous c-section or other uterine surgery , prior defects in the uterine muscle or in women older than Sometimes it happens for no detectable reason. Women's Health. Rene Wisely. October 13, PM. Graphic: Stephanie King. Ok, so what is placenta praevia? What are the risks of placenta praevia? How do you get a diagnosis for placenta praevia?
What treatment will you have if you have placenta praevia? What are the causes of placenta praevia? The chance of having a placenta praevia is greater if you: are over 35 years old have had fertility treatment, particularly IVF have had uterine surgery or have a uterine abnormality like fibroids are expecting more than one baby have had a previous caesarean birth have had a previous abortion are smoking during pregnancy are using cocaine during pregnancy are expecting a boy.
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