ArticleThe journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians2022
Characterization of amniotic fluid sludge in preterm and term gestations.
Article in The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.
- The microbiology of amniotic fluid sludge: a systematic review and meta-analysis.Archives of gynecology and obstetrics · 2026Pooled it
- Intra-amniotic infection: diagnosis, nomenclature, clinical significance, management, and microbiologic tools used for the diagnosis.Clinical microbiology reviews · 2026Review
- Lower Plasma Antioxidant Defense and Heat Shock Proteins Mark Intra-Amniotic Sludge Ultrasound Finding.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2026Article
- Article
- Infections as a Cause of Preterm Birth: Amniotic Fluid Sludge-An Ultrasound Marker for Intra-Amniotic Infections and a Risk Factor for Preterm Birth.Diagnostics (Basel, Switzerland) · 2025Review
- Observational
- Prevalence ofEpidemiology and infection · 2025Article
- Article
- A Review of the Literature: Amniotic Fluid "Sludge"-Clinical Significance and Perinatal Outcomes.Journal of clinical medicine · 2024Review
- Evidence for the participation of CHCHD2/MNRR1, a mitochondrial protein, in spontaneous labor at term and in preterm labor with intra-amniotic infection.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2023Article
- Amniotic fluid sludge caused by intraamniotic bleeding.American journal of obstetrics and gynecology · 2023Article
Corrections and comments
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Authors and funding
17 authors at 9 institutions in 4 countries.
Funding
Abstract
objectiveTo describe the characteristics of amniotic fluid sludge obtained from patients in term and preterm gestations.
methodsThis cross-sectional study included patients with dense aggregates of particulate matter detected in amniotic fluid, observed with transvaginal sonography. All patients were in labor and had an impending delivery, either preterm or at term. Echogenic material contained within amniotic fluid was retrieved transvaginally by needle amniotomy under direct visualization. The amniotic fluid analysis consisted of a Gram stain, cultures for aerobic/anaerobic bacteria and genital mycoplasmas, and a white blood cell count.
resultsTwenty-five patients ranging from 18 to 41 weeks of gestation were included in the study. We observed the following: (1) the appearance of amniotic fluid was consistent with pus-like material, vernix, or meconium by naked eye examination; (2) samples collected before 33 weeks of gestation (
conclusionThe nature of amniotic fluid particulate material varies as a function of gestational age. The material obtained in preterm gestations is frequently related to an inflammatory process, while that obtained at term is often consistent with vernix and appears to represent a maturational process.
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