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Amniotic fluid volume: Fluid dynamics and measurement technique
Seminars in Ultrasound, CT and MRI, 1993Evaluation of amniotic fluid volume is an important aspect of obstetrical ultrasound. Several methods are currently used to describe amniotic fluid volumes. The most common are the subjective assessment of fluid and the semiquantitative methods. The reproducibility of these methods is excellent in experienced hands. Because of the multiple methods used
B E, Hashimoto, D J, Kramer, L, Brennan
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AMNIOTIC FLUID VOLUMES IN EARLY PREGNANCY
BJOG: An International Journal of Obstetrics & Gynaecology, 1972SummaryAmniotic fluid volumes were measured in 46 cases of therapeutic abortion by hysterotomy. These are combined with four other published series to give figures for over 160 cases measured during the first half of pregnancy.
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Amniotic pressure in disorders of amniotic fluid volume.
Obstetrics and gynecology, 1990Amniotic pressure was measured in 49 pregnancies with abnormal quantities of amniotic fluid. Among 17 with polyhydramnios, the pressure was always above the normal mean for gestation and exceeded the upper limit of normal in nine. In polyhydramnios, amniotic pressure correlated positively with the depth of the deepest pool (r = 0.65, P = .04) and ...
Fisk, N.M. +4 more
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Physiology of Amniotic Fluid Volume Regulation
Clinical Obstetrics and Gynecology, 1997Although there are fairly wide variations AFV normally undergoes characteristic changes across gestation in which it increases from 10-20 ml at 10 weeks gestation to average 800 ml at 24 weeks. Little change occurs from then until near term when AFV begins to decrease, and large decreases can occur in postterm pregnancies. Across gestation, 95% of AFVs
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Amniotic fluid volume expansion
Current Obstetrics & Gynaecology, 1995Expansion of amniotic fluid volume is usually achieved by instillation of sterile fluid into the amniotic cavity by either the transabdominal or transcervical route. However, it has recently been demonstrated that oral hydration of the mother can have the same effect.
Sarah J. Bower, Nicholas M. Fisk
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Amniotic fluid volume dynamics
Fetal and Maternal Medicine Review, 1991From the moment of implantation until delivery some 37 weeks later, the human embryo or fetus is surrounded by fluid. Initially this fluid is a transudate from maternal and embryonic tissues which provides nutrients for the growing embryo. Starting in early pregnancy, the fetal kidneys begin to contribute substantial quantities of urine to the amniotic
William M Glibert +2 more
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THE VOLUME AND COMPOSITION OF AMNIOTIC FLUID IN EARLY PREGNANCY
BJOG: An International Journal of Obstetrics & Gynaecology, 1970SummaryThe volume and biochemical composition of amniotic fluid from early normal pregnancies terminated between 8 and 24 weeks were studied. The volume was measured directly in 27 of 33 cases. There was a small, but steady increase between 8 and 11 weeks. From 11 weeks there was a rapid and almost linear increase to a peak volume at 20 weeks.
R, Sinha, M, Carlton
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Amniotic fluid volumes in the second half of pregnancy
American Journal of Obstetrics and Gynecology, 1965Abstract The volume of amniotic fluid in 64 patients during the second half of pregnancy, using P.A.H. has been previewed. A total of 95 determinations were performed. The importance of prospective studies and repeated determinations in individual patients is emphasized as being essential for the acquisition of valid data, not only in respect to ...
D, Charles, H E, Jacoby, F, Burgess
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Biophysical Profile With Amniotic Fluid Volume Assessments
Obstetrics & Gynecology, 2004To compare the amniotic fluid index (AFI) with the single deepest pocket technique along with the other components of the biophysical profile (BPP) in predicting an adverse pregnancy outcome.Prospective, randomized trial of amniotic fluid assessment by AFI or single deepest pocket during a BPP.
Everett F, Magann +5 more
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CLINICAL UTILITY OF AMNIOTIC FLUID VOLUME ASSESSMENT
Obstetrics and Gynecology Clinics of North America, 1998Abnormal amniotic fluid volume is associated with increased maternal risk and perinatal morbidity and mortality. Until the advent of ultrasonography, the invasive nature of amniotic fluid volume assessment limited its clinical utility. Refinements in quantifying the noninvasive sonographic assessment of oligohydramnios and hydramnios have improved the ...
J E, Larmon, B S, Ross
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