Evidence map›Paper›PMID 36185774›Full record

ArticleJournal of obstetrics and gynaecology of India2023

Histopathological Changes in Placenta of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-Cov-2) Infection and Maternal and Perinatal Outcome in COVID-19.

Ruchika Garg, Rachana Agarwal, Divya Yadav, Saroj Singh, Harendra Kumar, Ritu Bhardwaj

Open access · bronzeAbstract read
In one paragraph

Article in Journal of obstetrics and gynaecology of India, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
5.4field-weighted citation impact, top 3% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 31 citations in OpenAlex.

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  13. Association of placental histopathological findings with COVID-19 and its predictive factors.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Ruchika GargDepartment of Obstetrics and Gynaecology, S N Medical College, Agra, U.P. India.
Rachana AgarwalDepartment of Obstetrics and Gynaecology, S N Medical College, Agra, U.P. India.ORCID 0000-0003-1697-3272
Divya YadavDepartment of Obstetrics and Gynaecology, S N Medical College, Agra, U.P. India.
Saroj SinghDepartment of Obstetrics and Gynaecology, S N Medical College, Agra, U.P. India.
Harendra KumarDepartment of Pathology, S N Medical College, Agra, U.P. India.
Ritu BhardwajDepartment of Obstetrics and Gynaecology, S N Medical College, Agra, U.P. India.
Sarojini Naidu Medical College · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Whether vertical transmission or placental pathology occurs after maternal infection during pregnancy remains unknown. There is a clear need for studies on the impact of COVID-19 on pregnancy outcome. A systemic inflammatory or hypercoagulable state may be the contributing factor for placental pathology. Methods: The pregnant women with COVID-19 who delivered between May 2020 and May 2021 were followed and data were collected about pregnancy course and placentas were examined for macro- and microscopical changes and were compared to controls with non-infected women. Results: Placenta of COVID-19-infected females had increased prevalence of decidual arteriopathy and placental injury reflecting hypoxia and uteroplacental insufficiency within the intervillous space. Features of maternal vascular malperfusion such as increased syncytial knots were present in 100% cases. Fibrinoid necrosis was seen in 100% cases and increased focal perivillous fibrin depositions were presented in 37.7% cases. About one fourth infected placentas had evidence of villitis. Even after matching for comorbidities like preeclampsia, these changes were present. Conclusion: The most common pathological findings of the placenta of COVID-19 infections are signs of maternal and fetal malperfusion. Future studies should target infections in different stage of gestation, including first and second trimesters.

Indexed as

COVID-19 (coronavirus disease 2019)Histopathological changesMVM (maternal vascular malperfusion)PlacentaPlacental changesPregnancyRT-PCR (reverse transcriptase polymerase chain reaction)SARS-CoV 2 (severe acute respiratory syndrome coronavirus 2)

Identifiers

PMID36185774
PMCPMC9510235
OpenAlexW4297894057

What OpenQuestion holds

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Registered trials

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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.