Continue Reading Below. Read This Next. Preeclampsia: Symptoms, Risk Factors and Treatment. Late Pregnancy Warning Signs and Tips. View Sources. March of Dimes, Oligohydramnios , June UpToDate, Oligohydramnios , March Mayo Clinic, Amniocentesis , March Mayo Clinic, Clubfoot , June Fetal Health. Pregnancy Groups. I visited the Chanda Nagar clinic for my treatment. The staff was very supportive and provided with all the necessary information.
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For these purposes, I consent to AHLL transferring my personal information to entities that may be located outside India. There are several factors that make it difficult to get an accurate ultrasound measurement.
As fluid levels decrease, ultrasound results become less accurate. Inexperience on the part of the technician can reduce the accuracy of the test results, as well as the amount of pressure that the technician puts on the ultrasound probe. The position of the baby can also affect the accuracy of the results. Nabhan and Abdelmoula ; Gilbert In a Cochrane review, researchers combined the results from 5 randomized controlled trials with more than 3, women.
In these studies, women were randomized to either the AFI method or the single deepest pocket method. Researchers found that when the AFI is used to measure amniotic fluid, women were 2.
The researchers concluded that the single deepest pocket measurement has fewer risks and should be the preferred way to measure amniotic fluid Nabhan and Abdelmoula What is the clinical significance of low amniotic fluid when a mother reaches 37 or more weeks? In the U. Image Source robenjoyce. However, this belief is not accurate. In early studies on amniotic fluid and outcomes, researchers included babies with congenital defects , women with pre-eclampsia or intrauterine growth restriction IUGR , and women who were post-term past 42 weeks in their samples.
These women and babies are more likely to have low amniotic fluid, and they are also much more likely to have poor outcomes. So although early researchers found that babies born to women with low amniotic fluid had higher perinatal mortality rates Chamberlain, Manning et al. There is no evidence that isolated oligohydramnios at term is a risk factor for poor outcomes. However, induction for isolated oligohydramnios leads to higher Cesarean rates.
In a systematic literature review, I found 5 studies from the last 10 years. I will discuss the 3 highest quality studies here. For results from all 5, you can see my findings summarized in this Google document table here. After controlling for the fact that some women were induced and some women were having their first baby, the researchers found no association between Cesarean for non-reassuring heart rate and amniotic fluid.
This means that the inductions were probably responsible for the higher Cesarean rates in the low amniotic fluid group. However, when the researchers controlled for gestational age, they found that the association between low birth weight and low amniotic fluid remained significant. This means that women with low amniotic fluid were 2 times more likely to have a baby that is born beneath the 10th percentile.
These babies may have had undiagnosed fetal growth restriction IUGR , which is a separate risk factor for poor outcomes.
So what is the evidence for induction because of low amniotic fluid without any other complications at term? There is no evidence that inducing labor for isolated oligohydramnios at term has any beneficial impact on mother or infant outcomes. Based on the lack of evidence, any recommendation for induction for isolated oligohydramnios at term would be a weak recommendation based on clinical opinion alone.
In summary, this is what I found about low amniotic fluid in an uncomplicated pregnancy at term weeks :. Are women in your local areas being induced for isolated oligohydramnios at term? Premature rupture of the membranes. What are the symptoms? Some of the symptoms may include: Fluid leaking from your vagina.
Your uterus not growing as expected. Your baby's movements slowing down. How is low amniotic fluid diagnosed? How is it treated? Top of the page Next Section: Credits. Previous Section: Topic Overview Top of the page.
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