Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Placental Tissue Destruction and Insufficiency from COVID-19 Causes Stillbirth and Neonatal Death from Hypoxic-Ischemic Injury : A Study of 68 Cases with SARS-CoV-2 Placentitis from 12 Countries

Schwartz, David A ; Avvad-Portari, Elyzabeth ; Babál, Pavel ; Baldewijns, Marcella ; Blomberg, Marie ; Bouachba, Amine ; Camacho, Jessica ; Collardeau-Frachon, Sophie ; Colson, Arthur and Dehaene, Isabelle , et al. (2022) In Archives of pathology & laboratory medicine 146(6). p.660-676
Abstract

CONTEXT.—: Perinatal death is an increasingly important problem as the COVID-19 pandemic continues, but the mechanism of death has been unclear.

OBJECTIVE.—: To evaluate the role of the placenta in causing stillbirth and neonatal death following maternal infection with COVID-19 and confirmed placental positivity for SARS-CoV-2.

DESIGN.—: Case-based retrospective clinico-pathological analysis by a multinational group of 44 perinatal specialists from 12 countries of placental and autopsy pathology findings from 64 stillborns and 4 neonatal deaths having placentas testing positive for SARS-CoV-2 following delivery to mothers with COVID-19.

RESULTS.—: All 68 placentas had increased fibrin deposition and villous trophoblast... (More)

CONTEXT.—: Perinatal death is an increasingly important problem as the COVID-19 pandemic continues, but the mechanism of death has been unclear.

OBJECTIVE.—: To evaluate the role of the placenta in causing stillbirth and neonatal death following maternal infection with COVID-19 and confirmed placental positivity for SARS-CoV-2.

DESIGN.—: Case-based retrospective clinico-pathological analysis by a multinational group of 44 perinatal specialists from 12 countries of placental and autopsy pathology findings from 64 stillborns and 4 neonatal deaths having placentas testing positive for SARS-CoV-2 following delivery to mothers with COVID-19.

RESULTS.—: All 68 placentas had increased fibrin deposition and villous trophoblast necrosis and 66 had chronic histiocytic intervillositis, the three findings constituting SARS-CoV-2 placentitis. Sixty-three placentas had massive perivillous fibrin deposition. Severe destructive placental disease from SARS-CoV-2 placentitis averaged 77.7% tissue involvement. Other findings included multiple intervillous thrombi (37%; 25/68) and chronic villitis (32%; 22/68). The majority (19, 63%) of the 30 autopsies revealed no significant fetal abnormalities except for intrauterine hypoxia and asphyxia. Among all 68 cases, SARS-CoV-2 was detected from a body specimen in 16 of 28 cases tested, most frequently from nasopharyngeal swabs. Four autopsied stillborns had SARS-CoV-2 identified in internal organs.

CONCLUSIONS.—: The pathology abnormalities composing SARS-CoV-2 placentitis cause widespread and severe placental destruction resulting in placental malperfusion and insufficiency. In these cases, intrauterine and perinatal death likely results directly from placental insufficiency and fetal hypoxic-ischemic injury. There was no evidence that SARS-CoV-2 involvement of the fetus had a role in causing these deaths.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; ; ; ; and , et al. (More)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; and (Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Archives of pathology & laboratory medicine
volume
146
issue
6
pages
660 - 676
publisher
College of American Pathologists
external identifiers
  • pmid:35142798
  • scopus:85125634642
ISSN
0003-9985
DOI
10.5858/arpa.2022-0029-SA
language
English
LU publication?
yes
additional info
© 2022 College of American Pathologists.
id
fa71f0a4-c8dd-4854-9d2a-c5c665cda4e6
date added to LUP
2022-02-12 08:31:05
date last changed
2024-04-18 05:56:19
@article{fa71f0a4-c8dd-4854-9d2a-c5c665cda4e6,
  abstract     = {{<p>CONTEXT.—: Perinatal death is an increasingly important problem as the COVID-19 pandemic continues, but the mechanism of death has been unclear.</p><p>OBJECTIVE.—: To evaluate the role of the placenta in causing stillbirth and neonatal death following maternal infection with COVID-19 and confirmed placental positivity for SARS-CoV-2.</p><p>DESIGN.—: Case-based retrospective clinico-pathological analysis by a multinational group of 44 perinatal specialists from 12 countries of placental and autopsy pathology findings from 64 stillborns and 4 neonatal deaths having placentas testing positive for SARS-CoV-2 following delivery to mothers with COVID-19.</p><p>RESULTS.—: All 68 placentas had increased fibrin deposition and villous trophoblast necrosis and 66 had chronic histiocytic intervillositis, the three findings constituting SARS-CoV-2 placentitis. Sixty-three placentas had massive perivillous fibrin deposition. Severe destructive placental disease from SARS-CoV-2 placentitis averaged 77.7% tissue involvement. Other findings included multiple intervillous thrombi (37%; 25/68) and chronic villitis (32%; 22/68). The majority (19, 63%) of the 30 autopsies revealed no significant fetal abnormalities except for intrauterine hypoxia and asphyxia. Among all 68 cases, SARS-CoV-2 was detected from a body specimen in 16 of 28 cases tested, most frequently from nasopharyngeal swabs. Four autopsied stillborns had SARS-CoV-2 identified in internal organs.</p><p>CONCLUSIONS.—: The pathology abnormalities composing SARS-CoV-2 placentitis cause widespread and severe placental destruction resulting in placental malperfusion and insufficiency. In these cases, intrauterine and perinatal death likely results directly from placental insufficiency and fetal hypoxic-ischemic injury. There was no evidence that SARS-CoV-2 involvement of the fetus had a role in causing these deaths.</p>}},
  author       = {{Schwartz, David A and Avvad-Portari, Elyzabeth and Babál, Pavel and Baldewijns, Marcella and Blomberg, Marie and Bouachba, Amine and Camacho, Jessica and Collardeau-Frachon, Sophie and Colson, Arthur and Dehaene, Isabelle and Ferreres, Joan Carles and Fitzgerald, Brendan and Garrido-Pontnou, Marta and Gerges, Hazem and Hargitai, Beata and Helguera-Repetto, A Cecilia and Holmström, Sandra and Irles, Claudine Liliane and Leijonhfvud, Åsa and Libbrecht, Sasha and Marton, Tamás and McEntagart, Noel and Molina, James T and Morotti, Raffaella and Nadal, Alfons and Navarro, Alexandra and Nelander, Maria and Oviedo, Angelica and Oyamada Otani, Andre Ricardo and Papadogiannakis, Nikos and Petersen, Astrid C and Roberts, Drucilla J and Saad, Ali G and Sand, Anna and Schoenmakers, Sam and Sehn, Jennifer K and Simpson, Preston R and Thomas, Kristen and Valdespino-Vázquez, M Yolotzin and van der Meeren, Lotte E and Van Dorpe, Jo and Verdijk, Robert M and Watkins, Jaclyn C and Zaigham, Mehreen}},
  issn         = {{0003-9985}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{660--676}},
  publisher    = {{College of American Pathologists}},
  series       = {{Archives of pathology & laboratory medicine}},
  title        = {{Placental Tissue Destruction and Insufficiency from COVID-19 Causes Stillbirth and Neonatal Death from Hypoxic-Ischemic Injury : A Study of 68 Cases with SARS-CoV-2 Placentitis from 12 Countries}},
  url          = {{http://dx.doi.org/10.5858/arpa.2022-0029-SA}},
  doi          = {{10.5858/arpa.2022-0029-SA}},
  volume       = {{146}},
  year         = {{2022}},
}