ReviewDer Pathologe2021
[Impact of SARS-CoV-2/COVID-19 on the placenta].
Review in Der Pathologe, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 12 citations in OpenAlex.
- Placental Histiocyte Phenotypes in Chronic Histiocytic Intervillositis: A Comprehensive Immunophenotypic and Morphologic Atlas.International journal of molecular sciences · 2026Article
- Article
- Stillbirth and fulminant postpartum haemolysis: COVID-19 or leptospirosis or both?BMJ case reports · 2023Article
- Roles of the ACE/Ang II/AT1R pathway, cytokine release, and alteration of tight junctions in COVID-19 pathogenesis.Tissue barriers · 2023Article
- Functional consequences of SARS-CoV-2 infection in pregnant women, fetoplacental unit, and neonate.Biochimica et biophysica acta. Molecular basis of disease · 2023Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
From the very beginning, special attention regarding severe acute respiratory syndrome-coronavirus‑2 (SARS-CoV-2) and the resulting coronavirus disease-2019 (COVID-19) has been paid to pregnant women.In this review, after a short introduction into the immunodefensive role of the placenta and viral infections in general, we describe the morphological changes of the placenta in SARS-CoV-2-infected pregnant women based on our own and other published studies, draw comparisons to the SARS epidemic, and discuss the question of vertical transmission of SARS-CoV‑2 from the mother to the neonate.The most common pathological findings of the placenta in SARS-CoV‑2 infection are signs of maternal and fetal malperfusion as well as potentially immunologically and/or thromboinflammation-mediated findings. These manifest as infarcts and decidual vasculopathy as well as thrombi in the fetal circulation and avascular villi. In some cases, there is also an inflammatory reaction with villitis, intervillositis, and fetal vasculitis. In addition, it has been shown that SARS-CoV‑2 can directly infect the placenta, so vertical transmission is possible.There is no COVID-19 specific pattern of placental alterations, although the detection of fetal thrombovasculitis, villitis, and intervillositis as well as fetal and maternal malperfusion could be best interpreted as the signature of SARS-CoV‑2 infection - considering the known pathophysiology of COVID-19 regarding other organs (inflammatory reaction and [micro]angiopathy). Detection of viral RNA in the fetal placental tissue and the umbilical cord indicates SARS-CoV‑2 vertical transmission.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.