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Doctor insights on: Ultrasound Shows Placenta Accreta

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Can you detect placenta accreta on an 18 obstetrical week ultrasound? My midwife says you can't see pa, but it was my understanding that you could.

Can you detect placenta accreta on an 18 obstetrical week ultrasound?  My midwife says you can't see pa, but it was my understanding that you could.

You certainly can!: Expert eyes can discern the tell-tale signs of placenta accreta as early as the first trimester - in fact recent evidence suggests that is the best time to detect this potentially life-threatening complication of pregnancy. It is certainly possible to diagnose accreta at 18 weeks - I have done it repeatedly and confirmed it at delivery. ...Read more

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Dr. Michael Gabor
2,190 doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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Anterior placenta previa with placental lake seen at 28w ultrasound, 2 D&Cs & no c-section hx. Any risk of placenta accreta? Best time to deliver?

Anterior placenta previa with placental lake seen at 28w ultrasound, 2 D&Cs & no c-section hx. Any risk of placenta accreta? Best time to deliver?

Placenta Previa: Placenta previa occurs when the placenta is covering the opening of the cervix. Vaginal delivery is possible in mild cases of previa. Placenta accreta is a different condition where the placenta gets "stuck" to the uterus. While the risk of accreta increases when you have previa, that risk is low if you have never had a c-section before. Follow-up with your obstetrician regarding delivery dates. ...Read more

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Can placenta accreta be missed at delivery?

Can placenta accreta be missed at delivery?

Very definitely: Unfortunately, placenta accreta is often diagnosed at the time post delivery when a cotyledon(plug) of placenta is missing or the placenta itself does not detach normally. At that point, aggressive measures to 'detach" the placenta may result in massive hemorrhage and the resultant post apocalyptic diagnosis of placenta accreta. ...Read more

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How often does placenta accreta go undiagnosed even after a csection delivery?

Placenta accreta: A previously undiagnosed placenta accrete may be diagnosed at the time of a cesarean section. This would occur when the OB is trying to remove the placenta but cannot because it is attached (accreta). On the other hand, if the placenta detaches easily, the uterine cavity is always explored so it would be rare to have an attached placenta left behind but a focal placenta accrete could be missed. ...Read more

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What is the cause of placenta accreta?

What is the cause of placenta accreta?

Uterine scars/defect: The placenta tends to implant over pre-existing uterine scars or defects; when that occurs, the invasive nature of the placenta can lead to abnormally increased vascularity in areas without sufficient uterine muscle to control the bleeding once the placenta is delivered (particularly near the cervix). That is potentially life-threatening if undiagnosed until delivery and managed in small hospital! ...Read more

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What are the tests for placenta accreta?

What are the tests for placenta accreta?

Ultrasound, Doppler.: The provisional working diagnosis is achieved prenatally with history taking and a targeted ultrasound examination by an expert in the field. Mri is not generally helpful, unless the placental invasion is posteriorly. The final diagnosis is made by pathological examination of the uterus and placenta en bloc after a cesarean hysterectomy. ...Read more

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What are the symptoms of placenta accreta?

Only at delivery: There are no symptoms during the pregnancy. Accreta presents with a placenta that will not detach after the infant is born. If the placenta is manually removed or removed under traction there is a great deal of bleeding, which may require surgery and possibly a hysterectomy. Accretas can sometimes be diagnosed prior to delivery via ultrasound or mri. ...Read more

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What makes it likely to have placenta accreta?

What makes it likely to have placenta accreta?

Uterine scarring: Women with a history of fibroid surgery or previous ceasarean whose placenta implants on scar tissue have a small, but present potential for the placenta to dig in too deeply. It can just happen de novo, too. ...Read more

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My sister has developed placenta accreta. What is it exactly?

Placenta accreta: A placenta accreta develops when the placenta invades or grows into the muscular layer of the uterus. With invasion of the muscle, detachment of the placenta after birth of the infant cannot occur. Retention of the placenta can lead to a postpartum hemorrhage. To remove the placenta, the uterus is usually removed after delivery of the infant. ...Read more

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What is the best way of managing placenta accreta and percreta?

Resorption: If placenta percreta/accreta is recognized at the time of delivery and there is no bleeding then allowing the uterus to contract and retained placenta to be excreted or absorbed later on its' own volition is a wise course. However, if there is massive uncontrollable bleeding then cesarean hysterectomy is the "default" choice. Uterine balloon "packing" can be also be tried to arrest bleeding. ...Read more

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Placenta (Definition)

The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via ...Read more


Dr. Nikolaos Zacharias
104 doctors shared insights

Placenta Accreta (Definition)

Placenta accreta is a condition where the placenta is attached too deeply to the wall of the uterus, making it more difficult ...Read more