Polyhydramnios and Oligohydramnios USMLE Step 2 Review YouTube
Oligohydramnios is amniotic fluid volume that is less than expected for gestational age; it is associated with maternal and fetal complications. Diagnosis is by ultrasonographic measurement of amniotic fluid volume. Management involves close fetal monitoring and serial ultrasonographic assessments. Causes of oligohydramnios include the following:
Oligohydramnios
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Oligohydramnios definition, causes, symptoms, diagnosis & treatment
Oligohydramnios is defined as decreased amniotic fluid volume (AFV) for gestational age. The volume of amniotic fluid changes over gestation, increasing linearly until 34 to 36 weeks gestation, at which point the AFV levels off (approximately 400mL) and remains constant until term. [1]
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The term oligohydramnios literally means "scant amniotic fluid" and is diagnosed when an ultrasound reveals an amniotic fluid index (AFI) of less than 5 cm. For reference, the normal value for AFI is 5-25 cm. What is amniotic fluid?
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Clinical features History Oligohydramnios is diagnosed via ultrasound during routine pregnancy monitoring. The history can vary depending on the cause and each woman may experience symptoms differently or may experience no symptoms at all.
What is Oligohydramnios? (Signs and Symptoms)
The diagnosis of oligohydramnios is made via ultrasound examination. There are two ways of measuring amniotic fluid; amniotic fluid index (AFI) or maximum pool depth (MPD). They have similar diagnostic accuracy, however AFI is more commonly used.
OligohydramniosCauses
Oligohydramnios is defined as a deepest fluid pocket of less than 2 cm or an amniotic fluid index of 5 cm or less. It develops in 0.5-4.0% of all pregnancies and can be associated with fetal growth restriction as a result of reduced renal perfusion and urinary output.
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Overview What is oligohydramnios? Oligohydramnios occurs during pregnancy when your amniotic fluid is lower than expected for your baby's gestational age. Amniotic fluid is a water-like fluid that surrounds your baby in your uterus.
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Oligohydramnios is a condition that causes you to have too little amniotic fluid during pregnancy. This fluid surrounds your unborn baby in the womb. Oligohydramnios can happen at any time during the pregnancy. It is most common in the third trimester.
Oligohydramnios causes, diagnosis and treatment in pregnancy
Oligohydramnios is the condition of having too little amniotic fluid. Doctors can measure the amount of fluid through a few different methods, most commonly through amniotic fluid index (AFI) evaluation or deep pocket measurements.
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Oligohydramnios is a decrease in the volume of amniotic fluid. The diagnosis of oligohydramnios is most frequently made by ultrasound examination. Oligohydramnios was initially defined as a subjective decrease in amniotic fluid volume resulting in fetal crowding as compared with normal values (Crowley et al., 1984). Objective sonographic.
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Diagnosis. A diagnosis of Oligohydramnios is established based on medical history, clinical evaluation, and investigation results. A diagnosis of Oligohydramnios has been suspected if the amniotic fluid is less than 8 cm on ultrasound and is confirmed if it is less than 5 cm. Other diagnostic indicators are as follows:
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Oligohydramnios is a condition of abnormally low amniotic fluid volume that has been associated with poor pregnancy outcomes. To date, the prevalence of this condition and its outcomes has not been well described in low and low-middle income countries (LMIC) where ultrasound use to diagnose this condition in pregnancy is limited. As part of a prospective trial of ultrasound at antenatal care.
OLIGOHYDRAMNIOS Causes and Treatment
Oligohydramnios. Oligohydramnios is amniotic fluid volume that is less than expected for gestational age; it is associated with maternal and fetal complications. Diagnosis is by ultrasonographic measurement of amniotic fluid volume. Management involves close fetal monitoring and serial ultrasonographic assessments.
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Polyhydramnios is a medical condition during pregnancy in which the amniotic fluid accumulates excessively. The amniotic fluid is the substance that surrounds the baby in utero. Excessive amounts of amniotic fluid may cause pressure within the uterus and also to the surrounding organs.
OLIGOHYDRAMNIOS
The Fetal Medicine Foundation. 1 in 100 pregnancies at <24 weeks' gestation. The vertical measurement of the deepest pocket of amniotic fluid free of fetal parts is <2 cm or the amniotic fluid index (sum of vertical pockets in the four quadrants) is <5 cm. There are essentially three major causes of oligohydramnios at <24 weeks' gestation:
