If the Placenta Attaches Over the Cervix the Patient and Baby Would Be at Risk for What Condition

• What Is
  • Placenta previa facts
  • What is placenta previa?
• Symptoms/Signs
  • What are the symptoms and signs of placenta previa?
• 3 Types
  • What are the types of placenta previa?
• Causes
  • What causes placenta previa?
  • Uterine factors
  • Placental factors
• How Many/Risk Factors
  • How many pregnant women take placenta previa? Who is at risk?
• Treatment
  • How is placenta previa diagnosed?
  • What is the handling and management for placenta previa?
• Harmful/Complications
  • What are complications of placenta previa? Is it harmful to the fetus and babe?
• Can You Die?
  • What is the prognosis for a woman with placenta previa during her pregnancy?
• Prevention
  • How tin can you prevent placenta previa during pregnancy?
• Middle
  • Placenta Previa Symptoms, Types, Causes, Treatment, Management, and Complications Heart
• Comments
  • Patient Comments: Placenta Previa - Symptoms
  • Patient Comments: Placenta Previa - Experience
  • Patient Comments: Placenta Previa - Treatment
  • Patient Comments: Placenta Previa - Diagnosis
  • Patient Comments: Placenta Previa - Prognosis
• More
  • Find a local Obstetrician-Gynecologist in your town

Placenta previa facts

Placenta previa occurs in about 4 out of every 1,000 pregnancies beyond the 20th calendar week of gestation.

• Placenta previa is the attachment of the placenta to the wall of the uterus in a location that completely or partially covers the uterine outlet (opening of the cervix).
• Bleeding later the 20th week of gestation is the principal symptom of placenta previa.
• An ultrasound examination is used to establish the diagnosis of placenta previa.
• Treatment of placenta previa involves bed residue and limitation of activity. Tocolytic medications, intravenous fluids, and blood transfusions may be required depending upon the severity of the condition.
• A Cesarean delivery is required for consummate placenta previa.
• Other complications of pregnancy tin be associated with placenta previa, but the majority of women deliver healthy babies.

Stages of Fetal Development Week-by-Calendar week Embryo Pictures

1. After 4 weeks of formulation, the basic structures of the fetus have begun to develop into split areas that will class the head, chest, abdomen, and the organs that are contained within them. Modest buds on the surface volition become arms and legs. A dwelling pregnancy examination should be positive at this stage of evolution (most tests claim positive results one calendar week after a missed period).
2. At 8 weeks, the fetus is nearly one-one-half an inch long (1.1cm). Facial features such every bit developing ears, eyelids, and nose tip are present. The limb buds are now conspicuously artillery and legs, while the fingers and toes are all the same developing.
3. At 12 weeks, the fetus has grown to nearly 2 inches (4.4cm) in length and may begin to move by itself. The fingers and toes are discernible and the fetal heartbeat may exist audible past Doppler ultrasound. The developing sexual activity organs may be identified by ultrasound techniques.

What is placenta previa?

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Placenta previa is the most common crusade of painless bleeding in the later stages of pregnancy (after the 20th week). The placenta is a temporary organ that joins the mother and fetus and transfers oxygen and nutrients from the female parent to the fetus. The placenta is deejay-shaped and at full term measures well-nigh seven inches in diameter. The placenta attaches to the wall of the uterus (womb). Placenta previa is a complexity that results from the placenta implanting either near to, or overlying, the outlet of the uterus (the opening of the uterus, the cervix).

Because the placenta is rich in blood vessels, if it is implanted most the outlet of the uterus, haemorrhage can occur when the cervix dilates or stretches.

What are the symptoms and signs of placenta previa?

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Bleeding is the primary symptom of placenta previa and occurs in the majority (seventy%-80%) of women with this condition.

• Vaginal bleeding later the 20th calendar week of gestation is characteristic of placenta previa.
• Commonly the bleeding is painless, but it can be associated with uterine contractions and abdominal pain.
• Bleeding may range in severity from light to severe.

What are the types of placenta previa?

The types of placenta previa include:

• Complete placenta previa occurs when the placenta completely covers the opening from the womb to the cervix.
• Fractional placenta previa occurs when the placenta partially covers the cervical opening
• Marginal placenta previa occurs when the placenta is located adjacent to, but not covering, the cervical opening.

The term low-lying placenta or low placenta has been used to refer both to placenta previa and marginal placenta previa. Sometimes, the terms inductive placenta previa and posterior placenta previa are used to further define the exact position of the placenta within the uterus, as defined by ultrasound examinations.

IMAGES

Placenta Previa See pictures of a growing fetus through the 3 stages of pregnancy Meet Images

What causes placenta previa?

The placenta may be located in the lower part of the uterus either roofing or next to the cervical outlet for a number of reasons. The placenta normally migrates away from the cervical opening as the pregnancy progresses, so women in the before stages of pregnancy are more likely to take placenta previa than are women at term. Although upward to 6% of women between 10 and twenty weeks' gestation volition have some evidence of placenta previa on ultrasound examination, 90% of these cases resolve on their own as the pregnancy progresses.

Placenta previa that persists beyond the 20th week of gestation can exist due to abnormalities of the uterus that promote attachment of the placenta in the lower regions of the uterus or to factors that require an increased size of the placenta.

Uterine factors

Uterine factors that can predispose to placenta previa include scarring of the upper lining tissues of the uterus. This can occur because of prior Cesarean deliveries, prior instrumentation (such as D&C procedures for miscarriages or induced abortions) of the uterine crenel, or whatever type of surgery involving the uterus.

Placental factors

When the placenta must grow larger to recoup for decreased function (lowered ability to deliver oxygen and/or nutrients), there is an increased adventure of developing placenta previa since the surface area of the placenta will be larger. Examples of situations in which there is need for greater placenta function, and a resultant increment in risk for placenta previa include;

• multiple gestation,
• cigarette smoking in the female parent,
• and living at high altitude.

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How many pregnant women accept placenta previa? Who is at take chances?

Placenta previa is found in approximately four out of every m pregnancies across the 20th week of gestation. Asian women are at a slightly greater risk for placenta previa than are women of other ethnic groups, although the reason for this is unclear. It has likewise been observed that women conveying male person fetuses are at slightly greater run a risk for placenta previa than are women carrying female person fetuses.

The risk of having placenta previa increases with increasing maternal age and with the number of previous deliveries. Women who have had placenta previa in one pregnancy too accept a greater risk for having placenta previa in subsequent pregnancies.

How is placenta previa diagnosed?

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An ultrasound test is used to establish the diagnosis of placenta previa. Either a transabdominal (using a probe on the abdominal wall) or transvaginal (with a probe inserted inside the vagina just away from the cervical opening) ultrasound evaluation may be performed, depending upon the location of the placenta. Sometimes both types of ultrasound test are necessary.

It is important that the ultrasound examination be performed before a physical examination of the pelvis in women with suspected placenta previa, since the pelvic physical test may lead to further haemorrhage.

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What is the treatment and management for placenta previa?

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Treatment of placenta previa depends upon the;

• extent and severity of bleeding,
• gestational age and condition of the fetus,
• position of the placenta and fetus, and
• whether the bleeding has stopped.

Cesarean delivery (C-department) is required for consummate placenta previa and may be necessary for other types of placenta previa. A Cesarean delivery is usually planned for women with placenta previa equally soon as the infant tin can be safely delivered (typically after 36 weeks' gestation), although an emergency Cesarean delivery at any earlier gestational age may be necessary for heavy bleeding that cannot exist stopped after treatment in the hospital (encounter below).

Women who are actively bleeding or who have bleeding that cannot be stopped will exist admitted to the hospital for farther intendance. If at that place has been little or no haemorrhage or the haemorrhage has stopped, bed balance at home may be prescribed. Home care is not e'er appropriate, and women who remain at home must be able to access medical intendance immediately should bleeding resume. Women with placenta previa in the 3rd trimester of pregnancy are advised to avert sexual intercourse and do and to reduce their activeness level.

Women with placenta previa who experience heavy bleeding may require blood transfusions and intravenous fluids. In some cases, tocolytic drugs (medications that tiresome down or inhibit labor), such every bit magnesium sulfate or terbutaline (Brethine) are necessary. Corticosteroids may be given to raise lung development in the fetus prior to Cesarean commitment.

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What are complications of placenta previa? Is it harmful to the fetus and baby?

• Placenta previa can be associated with other abnormalities of the placenta or of the umbilical string. Some studies have shown a reduction in fetal growth associated with placenta previa, and the presence of the placenta in the lower office of the uterus makes breech or abnormal presentation of the fetus more than likely.
• The bleeding of placenta previa can increase the risk for preterm premature rupture of the membranes (PPROM), leading to premature labor.
• Placenta accreta is a serious complication that occurs in 5% to ten% of women with placenta previa. Placenta accreta results when the placental tissue grows also securely into the womb, attaching to the muscle layer, resulting in difficulty separating the placenta from the wall of the uterus at delivery. This complication tin can crusade life-threatening bleeding and commonly requires hysterectomy at the time of Cesarean delivery.
• As with other complications of pregnancy, placenta previa can accept a significant emotional impact on the significant adult female.

What is the prognosis for a woman with placenta previa during her pregnancy?

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The majority of women with placenta previa in developed countries will deliver healthy babies, and the maternal mortality (expiry) charge per unit is less than ane%. In developing countries where medical resource may be defective, the risks for mother and fetus may be higher.

How can you preclude placenta previa during pregnancy?

Placenta previa cannot typically be prevented. In some cases, hazard factors for the development of placenta previa can be eliminated (such as smoking cessation).

From

References

Bakker, R, MD, et al. Placenta Previa. Medscape. Updated: Jan 08, 2017.
<http://emedicine.medscape.com/article/262063-overview>

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Source: https://www.medicinenet.com/pregnancy_placenta_previa/article.htm

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