Objective: Our purpose was to determine the accuracy of the summated amniotic fluid index designed to estimate the total amniotic fluid volume in twin pregnancies.
Study Design: The summated amniotic fluid index was measured in 62 normal diamniotic twin pregnancies by adding the deepest vertical pockets in the four quadrants. Actual amniotic fluid volume was then determined in all 124 amniotic sacs by amniocentesis and a dye-dilution technique. For data analysis, amniotic fluid volumes were classified by percentile with use of previously reported norms.
Results: There were significant differences in the percentile distribution of amniotic fluid volume as estimated by the summated amniotic fluid index and the actual volume as determined by dye dilution (p < 0.001). The summated amniotic fluid index has a sensitivity of only 13% in predicting amniotic sac volume.
Conclusion: The summated amniotic fluid index is a poor predictor of intertwin differences in amniotic fluid volume and cannot identify twin pairs at risk for oligohydramnios and hydramnios.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/s0002-9378(97)70011-5 | DOI Listing |
Biochimie
January 2025
Department of Condensed Matter, National Institute for Research and Development in Electrochemistry and Condensed Matter, Plautius Andronescu Str. 1, 300224, Timisoara, Romania; Department of Physics, West University of Timisoara, Vasile Parvan, 4, 300223, Romania; Institute for Research, Development and Innovation in Natural and Technical Sciences, Aurel Vlaicu University of Arad, B-dul Revoluţiei 77, 310130, Romania. Electronic address:
Anencephaly, the most severe type of neural tube defects (NTDs) in humans, occurs between the third and fourth gestational weeks (GW), involves the cranial part of the NT and results in the absence of the forebrain and skull. Exposed to amniotic fluid toxicity, neural tissue is degraded and prevented from development. Currently, little is known about the molecular bases of the disease and the possible involvement of glycans.
View Article and Find Full Text PDFHereditas
January 2025
Key Laboratory of Reproductive Health Diseases Research and Translation of Ministry of Education & Key Laboratory of Human Reproductive Medicine and Genetic Research of Hainan Provincie & Hainan Provincial Clinical Research Center for Thalassemia, The First Affiliated Hospital of Hainan Medical University, Hainan Medical University, Haikou, Hainan, 571101, China.
Background: The dynein cytoplasmic two heavy chain 1 (DYNC2H1) gene encodes a cytoplasmic dynein subunit. Cytoplasmic dyneins transport cargo towards the minus end of microtubules and are thus termed the "retrograde" cellular motor. Mutations in DYNC2H1 are the main causative mutations of short rib-thoracic dysplasia syndrome type III with or without polydactyly (SRTD3).
View Article and Find Full Text PDFJ Biomater Appl
January 2025
BEST/CB3S, UMR CNRS 7244, Institut Galilée, Université Sorbonne Paris Nord, Villetaneuse, France.
Myelomeningocele (MMC) is a congenital defect of the spine characterized by meningeal and spinal cord protrusion through open vertebral archs, and its exposure to the amniotic fluid. Given that the progression of neuronal loss begins early in fetal life, an early coverage of the defect is required to improve the neurological outcomes. Several studies have proposed patches as an alternative to full surgical repair, to achieve an early protection of the spine and possibly reduce the rate of complications of current prenatal surgical procedures.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA.
Micro(nano)plastics (MNPs), widely distributed in the environment, can be ingested and accumulated by various organisms. Recently, the transgenerational transport of MNPs from parental organisms to their offspring has attracted increasing attention. In this review, we summarize the patterns, specific pathways, and related mechanisms of intergenerational transfer of MNPs in plants, non-mammals (zooplankton and fish) and mammals.
View Article and Find Full Text PDFCurr Opin Hematol
January 2025
Department of Pathology, Section of Oncopathology and Morphological Pathology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
Purpose Of Review: This review aims to summarize the histological differences among thrombi in acute myocardial infarction, ischemic stroke, venous thromboembolism, and amniotic fluid embolism, a newly identified thrombosis.
Recent Findings: Acute coronary thrombi have a small size, are enriched in platelets and fibrin, and show the presence of fibrin and von Willebrand factor, but not collagen, at plaque rupture sites. Symptomatic deep vein thrombi are large and exhibit various phases of time-dependent histological changes.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!