COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and Antifibrotics

COVID-19 can be associated with lung fibrosis. Although lung fibrosis after COVID-19 is a relatively rare finding, the mere fact that globally a very large number of patients have had COVID-19 leads to a significant burden of disease. However, patients with COVID-19-associated lung fibrosis have dif...

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Main Authors: René Hage, Macé M. Schuurmans
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Transplantology
Subjects:
Online Access:https://www.mdpi.com/2673-3943/3/3/24
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author René Hage
Macé M. Schuurmans
author_facet René Hage
Macé M. Schuurmans
author_sort René Hage
collection DOAJ
description COVID-19 can be associated with lung fibrosis. Although lung fibrosis after COVID-19 is a relatively rare finding, the mere fact that globally a very large number of patients have had COVID-19 leads to a significant burden of disease. However, patients with COVID-19-associated lung fibrosis have different clinical and radiological features. The aim of this review is to define the different phenotypes of COVID-19-associated lung fibrosis, based on the medical literature. We found that two phenotypes have emerged. One phenotype is COVID-19-related acute respiratory distress syndrome (CARDS); the other phenotype is post-COVID-19 pulmonary fibrosis (PCPF). Both phenotypes have different risk factors, clinical, and radiological features, and differ in their pathophysiological mechanisms and prognoses. A long-term follow-up of patients with pulmonary complications after COVID-19 is warranted, even in patients with only discrete fibrosis. Further studies are needed to determine the optimal treatment because currently the literature is scarce, and evidence is only based on small case series or case reports.
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spelling doaj.art-4995be5e1aed45139813bb097ffebae62023-11-23T19:17:23ZengMDPI AGTransplantology2673-39432022-07-013323024010.3390/transplantology3030024COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and AntifibroticsRené Hage0Macé M. Schuurmans1Division of Pulmonology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, SwitzerlandDivision of Pulmonology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, SwitzerlandCOVID-19 can be associated with lung fibrosis. Although lung fibrosis after COVID-19 is a relatively rare finding, the mere fact that globally a very large number of patients have had COVID-19 leads to a significant burden of disease. However, patients with COVID-19-associated lung fibrosis have different clinical and radiological features. The aim of this review is to define the different phenotypes of COVID-19-associated lung fibrosis, based on the medical literature. We found that two phenotypes have emerged. One phenotype is COVID-19-related acute respiratory distress syndrome (CARDS); the other phenotype is post-COVID-19 pulmonary fibrosis (PCPF). Both phenotypes have different risk factors, clinical, and radiological features, and differ in their pathophysiological mechanisms and prognoses. A long-term follow-up of patients with pulmonary complications after COVID-19 is warranted, even in patients with only discrete fibrosis. Further studies are needed to determine the optimal treatment because currently the literature is scarce, and evidence is only based on small case series or case reports.https://www.mdpi.com/2673-3943/3/3/24lung transplantationSARS-CoV-2fibrosisphenotype hypothesis
spellingShingle René Hage
Macé M. Schuurmans
COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and Antifibrotics
Transplantology
lung transplantation
SARS-CoV-2
fibrosis
phenotype hypothesis
title COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and Antifibrotics
title_full COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and Antifibrotics
title_fullStr COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and Antifibrotics
title_full_unstemmed COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and Antifibrotics
title_short COVID-19-Associated Lung Fibrosis: Two Pathways and Two Phenotypes, Lung Transplantation, and Antifibrotics
title_sort covid 19 associated lung fibrosis two pathways and two phenotypes lung transplantation and antifibrotics
topic lung transplantation
SARS-CoV-2
fibrosis
phenotype hypothesis
url https://www.mdpi.com/2673-3943/3/3/24
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