نتایج جستجو برای: amniotic fluid index
تعداد نتایج: 613413 فیلتر نتایج به سال:
Background & Aim: Studies have shown that umbilical coiling index(UCI) can have clinical importance. The present study was undertaken to evaluate the relation between umbilical coiling index(UCI) and adverse perinatal outcome. Patients & Methods: In this prospective cross-sectional study performed in Akbar Abadi Hospital(Tehran), between March 2003-July 2004, 699 pregnant women and their um...
BACKGROUND The aims of this study were to evaluate the efficacy of current techniques for isolating mesenchymal stem cells (MSCs) from amniotic fluid obtained by second-trimester amniocentesis as well as to determine their differentiation potential. METHODS We collected 50 samples of amniotic fluid by second-trimester amniocentesis. To obtain MSCs from amniotic fluid, the fluid was cultured u...
OBJECTIVE The aim of this study was to evaluate the foetal renal blood flow with colour Doppler ultrasonography. Patients with polyhydramnios were investigated for the foetal renal artery pulsatility index (PI) at the beginning of the treatment, and after the conservative treatment in those who reached the normal amniotic fluid index. MATERIALS AND METHODS In this prospective study, 39 foetus...
Acrania is a rare foetal anomaly in which the calvaria absent, and meninges come into direct contact with amniotic fluid. most common acrania – exencephaly anencephaly spectrum, anincidence of 3.68 to 5.4 per 10,000 live births. We present case primigravida who presented for an ultrasound on account vaginal bleeding early cyesis. Transabdominal showed viable foetus at 13 weeks without calvaria,...
The amniotic fluid volume (AFV) is regulated by several systems, including the in-tramembranous pathway, fetal production (fetal urine and lung fluid) and uptake (fetal swallowing), and the balance of fluid movement via osmotic gradients. The normal AFV across gestation has not been clearly defined; consequently, abnormal volumes are also poorly defined. Actual AFVs can be measured by dye dilut...
The fetal intestinal mucosa is characterized by elevated Toll-like receptor 4 (TLR4) expression, which can lead to the development of necrotizing enterocolitis (NEC)--a devastating inflammatory disease of the premature intestine--upon exposure to microbes. To define endogenous strategies that could reduce TLR4 signaling, we hypothesized that amniotic fluid can inhibit TLR4 signaling within the ...
Intramembranous absorption increases during intra-amniotic infusion of physiological saline solutions. The increase may be due partly to the concomitant elevation in fetal urine production as fetal urine contains a stimulator of intramembranous absorption. In this study, we hypothesized that the increase in intramembranous absorption during intra-amniotic infusion is due, in part, to dilution o...
The presence of contaminating maternal cells in amniotic fluid is an important, though infrequent, cause of error in karyotyping the fetus. A method of detecting contaminating maternal cells in amniocentesis specimens by determining the HLA phenotype of the cells of amniotic fluid and the mother is described. Tissue typing of 15 amniocentesis specimens was performed, and in 14 cases the fetal o...
stem cells, the last of which can be obtained from fetal tissues, including amniotic fluid [5]. Analyses of human amniotic fluid have been used as safe and reliable screening tools for fetal genetic and congenital diseases for many years [6]. Amniotic fluid contains cells originating from both embryonic and extraembryonic tissues (amnion, placenta, fetus skin, and respiratory, gastrointestinal,...
We developed a new method for an objective assessment of the meconium content in amniotic fluid. By establishing a standard scale through a serial dilution of a known amount of meconium into the amniotic fluid, we developed a new method "mecometer" that can objectively measure the meconium content in meconium-stained amniotic fluid samples. The objectivity and reliability of this mecometer were...
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