Is placental abruption life threatening?
Placental abruption can cause life-threatening problems for both mother and baby. For the mother, placental abruption can lead to: Shock due to blood loss. Blood clotting problems (disseminated intravascular coagulation)
It is thought that an abnormal blood supply in the uterus or placenta may play a role, but the cause of the suspected abnormality isn't clear. Some of the known causes of placental abruption include: Abdominal trauma – an injury to the pregnant woman's abdomen may tear the placenta from the wall of the uterus.
- Risk factors in abruptio placentae include the following: Maternal hypertension - Most common cause of abruption, occurring in approximately 44% of all cases. Maternal trauma (eg, motor vehicle collision [MVC], assaults, falls) - Causes 1.5-9.4% of all cases. Cigarette smoking.
- Waiting until your body is ready to deliver the placenta can take a little time, from about 10 minutes to up to an hour (this might sound like a long time but you will have been saying hello to your baby so the time goes by very quickly).
- About 1 in 100 pregnant women (1 percent) have placental abruption. It usually happens in the third trimester, but it can happen any time after 20 weeks of pregnancy. Mild cases may cause few problems. An abruption is mild if only a very small part of the placenta separates from the uterus wall.
Placental abruption is relatively rare, with slight separation occurring in only about one of 150 pregnancies (that's less than 1 percent). More severe separation happens in only about one out of 800 to 1,600 deliveries. It almost always occurs in the second half of the pregnancy, most often in the third trimester.
- Different types of genetic inheritance might cause placental abruption. Placental abruption can be inherited through maternal susceptibility genes for placental abruption. Alternatively, maternal alleles can be passed through the fetus or the placenta.
- These irregularities can result from scarring after a cesarean delivery or uterine surgery. These scars allow the placenta to grow too deeply into the uterine wall. Pregnant women whose placenta partially or fully covers their cervix (placenta previa) are also at a higher risk of placenta accreta.
- Placental insufficiency (or uteroplacental vascular insufficiency) is a complication of pregnancy when the placenta is unable to deliver an adequate supply of nutrients and oxygen to the fetus, and, thus, cannot fully support the developing baby.
Updated: 28th October 2019