SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in England

Summary: Background: Pregnant women with SARS-CoV-2 infection experience higher rates of stillbirth and preterm birth. A unique pattern of chronic histiocytic intervillositis (CHI) and/or massive perivillous fibrin deposition (MPFD) has emerged, coined as SARS-CoV-2 placentitis. Methods: The aim of...

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Main Authors: Sophie Stenton, Jo McPartland, Rajeev Shukla, Kerry Turner, Tamas Marton, Beata Hargitai, Andrew Bamber, Jeremy Pryce, Cesar L Peres, Nadia Burguess, Bart Wagner, Barbara Ciolka, William Simmons, Daniel Hurrell, Thivya Sekar, Corina Moldovan, Claire Trayers, Victoria Bryant, Liina Palm, Marta C Cohen
Format: Article
Language:English
Published: Elsevier 2022-05-01
Series:EClinicalMedicine
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589537022001195
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author Sophie Stenton
Jo McPartland
Rajeev Shukla
Kerry Turner
Tamas Marton
Beata Hargitai
Andrew Bamber
Jeremy Pryce
Cesar L Peres
Nadia Burguess
Bart Wagner
Barbara Ciolka
William Simmons
Daniel Hurrell
Thivya Sekar
Corina Moldovan
Claire Trayers
Victoria Bryant
Liina Palm
Marta C Cohen
author_facet Sophie Stenton
Jo McPartland
Rajeev Shukla
Kerry Turner
Tamas Marton
Beata Hargitai
Andrew Bamber
Jeremy Pryce
Cesar L Peres
Nadia Burguess
Bart Wagner
Barbara Ciolka
William Simmons
Daniel Hurrell
Thivya Sekar
Corina Moldovan
Claire Trayers
Victoria Bryant
Liina Palm
Marta C Cohen
author_sort Sophie Stenton
collection DOAJ
description Summary: Background: Pregnant women with SARS-CoV-2 infection experience higher rates of stillbirth and preterm birth. A unique pattern of chronic histiocytic intervillositis (CHI) and/or massive perivillous fibrin deposition (MPFD) has emerged, coined as SARS-CoV-2 placentitis. Methods: The aim of this study was to describe a cohort of placentas diagnosed with SARS-CoV-2 placentitis during October 2020-March 2021. Cases with a histological diagnosis of SARS-CoV-2 placentitis and confirmatory immunohistochemistry were reported. Maternal demographic data, pregnancy outcomes and placental findings were collected. Findings: 59 mothers delivered 61 infants with SARS-CoV-2 placentitis. The gestational age ranged from 19 to 41 weeks with most cases (78.6%) being third trimester. 30 infants (49.1%) were stillborn or late miscarriages. Obese mothers had higher rates of pregnancy loss when compared with those with a BMI <30 [67% (10/15) versus 41% (14/34)]. 47/59 (79.7%) mothers had a positive SARS-CoV-2 PCR test either at the time of labour or in the months before, of which 12 (25.5%) were reported to be asymptomatic. Ten reported only CHI, two cases showed MPFD only and in 48 placentas both CHI and MPFD was described. Interpretation: SARS-CoV2 placentitis is a distinct entity associated with increased risk of pregnancy loss, particularly in the third trimester. Women can be completely asymptomatic and still experience severe placentitis. Unlike ‘classical’ MPFD, placentas with SARS-CoV-2 are generally normal in size with adequate fetoplacental weight ratios. Further work should establish the significance of the timing of maternal SARS-CoV-2 infection and placentitis, the significance of SARS-CoV2 variants, and rates of vertical transmission associated with this pattern of placental inflammation. Funding: There was not funding associated with this study.
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spelling doaj.art-d9ac62770b344f098c48eccb0b02ecbe2022-12-22T02:39:35ZengElsevierEClinicalMedicine2589-53702022-05-0147101389SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in EnglandSophie Stenton0Jo McPartland1Rajeev Shukla2Kerry Turner3Tamas Marton4Beata Hargitai5Andrew Bamber6Jeremy Pryce7Cesar L Peres8Nadia Burguess9Bart Wagner10Barbara Ciolka11William Simmons12Daniel Hurrell13Thivya Sekar14Corina Moldovan15Claire Trayers16Victoria Bryant17Liina Palm18Marta C Cohen19Histopathology Department, Sheffield Children's NHS FT, Sheffield, UKHistopathology Department, Alder Hey Children's NHS FT, Liverpool, UKHistopathology Department, Alder Hey Children's NHS FT, Liverpool, UKHistopathology Department, St James University Hospital, Leeds, UKHistopathology Department, Women Birmingham Hospital, Birmingham, UKHistopathology Department, Women Birmingham Hospital, Birmingham, UKHistopathology Department, Bristol Royal Hospital for Children, Bristol, UKCellular Pathology Services, St Georges University Hospital NHS FT, London, UKHistopathology Department, Sheffield Children's NHS FT, Sheffield, UKHistopathology Department, Sheffield Children's NHS FT, Sheffield, UKHistopathology Department, Sheffield Teaching Hospitals NHS FT, Sheffield, UKHistopathology Department, Alder Hey Children's NHS FT, Liverpool, UKHistopathology Department, Alder Hey Children's NHS FT, Liverpool, UKHistopathology Department, Alder Hey Children's NHS FT, Liverpool, UKHistopathology Department, Great Ormond Street Hospital, London, UKHistopathology Department, The Newcastle Upon-Tyne NHS FT, Newcastle, UKHistopathology Department, Cambridge University Hospitals NHS FT, Cambridge, UKHistopathology Department, The Royal London-Barts Health NHS FT, London, UKHistopathology Department, Great Ormond Street Hospital, London, UKHistopathology Department, Sheffield Children's NHS FT, Sheffield, UK; Corresponding author.Summary: Background: Pregnant women with SARS-CoV-2 infection experience higher rates of stillbirth and preterm birth. A unique pattern of chronic histiocytic intervillositis (CHI) and/or massive perivillous fibrin deposition (MPFD) has emerged, coined as SARS-CoV-2 placentitis. Methods: The aim of this study was to describe a cohort of placentas diagnosed with SARS-CoV-2 placentitis during October 2020-March 2021. Cases with a histological diagnosis of SARS-CoV-2 placentitis and confirmatory immunohistochemistry were reported. Maternal demographic data, pregnancy outcomes and placental findings were collected. Findings: 59 mothers delivered 61 infants with SARS-CoV-2 placentitis. The gestational age ranged from 19 to 41 weeks with most cases (78.6%) being third trimester. 30 infants (49.1%) were stillborn or late miscarriages. Obese mothers had higher rates of pregnancy loss when compared with those with a BMI <30 [67% (10/15) versus 41% (14/34)]. 47/59 (79.7%) mothers had a positive SARS-CoV-2 PCR test either at the time of labour or in the months before, of which 12 (25.5%) were reported to be asymptomatic. Ten reported only CHI, two cases showed MPFD only and in 48 placentas both CHI and MPFD was described. Interpretation: SARS-CoV2 placentitis is a distinct entity associated with increased risk of pregnancy loss, particularly in the third trimester. Women can be completely asymptomatic and still experience severe placentitis. Unlike ‘classical’ MPFD, placentas with SARS-CoV-2 are generally normal in size with adequate fetoplacental weight ratios. Further work should establish the significance of the timing of maternal SARS-CoV-2 infection and placentitis, the significance of SARS-CoV2 variants, and rates of vertical transmission associated with this pattern of placental inflammation. Funding: There was not funding associated with this study.http://www.sciencedirect.com/science/article/pii/S2589537022001195COVID-19Chronic histiocytic intervillositisMassive perivillous fibrin depositionPlacentitisSARS-CoV2Stillbirth
spellingShingle Sophie Stenton
Jo McPartland
Rajeev Shukla
Kerry Turner
Tamas Marton
Beata Hargitai
Andrew Bamber
Jeremy Pryce
Cesar L Peres
Nadia Burguess
Bart Wagner
Barbara Ciolka
William Simmons
Daniel Hurrell
Thivya Sekar
Corina Moldovan
Claire Trayers
Victoria Bryant
Liina Palm
Marta C Cohen
SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in England
EClinicalMedicine
COVID-19
Chronic histiocytic intervillositis
Massive perivillous fibrin deposition
Placentitis
SARS-CoV2
Stillbirth
title SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in England
title_full SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in England
title_fullStr SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in England
title_full_unstemmed SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in England
title_short SARS-COV2 placentitis and pregnancy outcome: A multicentre experience during the Alpha and early Delta waves of coronavirus pandemic in England
title_sort sars cov2 placentitis and pregnancy outcome a multicentre experience during the alpha and early delta waves of coronavirus pandemic in england
topic COVID-19
Chronic histiocytic intervillositis
Massive perivillous fibrin deposition
Placentitis
SARS-CoV2
Stillbirth
url http://www.sciencedirect.com/science/article/pii/S2589537022001195
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