Characteristics of COVID-19 Patients Who Progress to Pneumonia on Follow-Up Chest Radiograph: 236 Patients from a Single Isolated Cohort in Daegu, South Korea.
Identifieur interne : 000803 ( Main/Exploration ); précédent : 000802; suivant : 000804Characteristics of COVID-19 Patients Who Progress to Pneumonia on Follow-Up Chest Radiograph: 236 Patients from a Single Isolated Cohort in Daegu, South Korea.
Auteurs : Ha Kyung Jung [Corée du Sud] ; Jin Young Kim [Corée du Sud] ; Mu Sook Lee [Corée du Sud] ; Ji Yeon Lee [Corée du Sud] ; Jae Seok Park [Corée du Sud] ; Miri Hyun [Corée du Sud] ; Hyun Ah Kim [Corée du Sud] ; Yong Shik Kwon [Corée du Sud] ; Sang Woong Choi [Corée du Sud] ; Sung Min Moon [Corée du Sud] ; Young Joo Suh [Corée du Sud]Source :
- Korean journal of radiology [ 2005-8330 ] ; 2020.
Descripteurs français
- KwdFr :
- Adulte (MeSH), Adulte d'âge moyen (MeSH), Betacoronavirus (isolement et purification), Facteurs âges (MeSH), Femelle (MeSH), Humains (MeSH), Infections à coronavirus (diagnostic), Infections à coronavirus (imagerie diagnostique), Infections à coronavirus (virologie), L-Lactate dehydrogenase (métabolisme), Mâle (MeSH), Numération des lymphocytes (MeSH), Odds ratio (MeSH), Pandémies (MeSH), Pneumopathie virale (diagnostic), Pneumopathie virale (imagerie diagnostique), Pneumopathie virale (virologie), Protéine C-réactive (analyse), République de Corée (MeSH), Sujet âgé (MeSH), Thorax (imagerie diagnostique), Tomodensitométrie (MeSH), Études rétrospectives (MeSH).
- MESH :
- analyse : Protéine C-réactive.
- diagnostic : Infections à coronavirus, Pneumopathie virale.
- imagerie diagnostique : Infections à coronavirus, Pneumopathie virale, Thorax.
- isolement et purification : Betacoronavirus.
- métabolisme : L-Lactate dehydrogenase.
- virologie : Infections à coronavirus, Pneumopathie virale.
- Adulte, Adulte d'âge moyen, Facteurs âges, Femelle, Humains, Mâle, Numération des lymphocytes, Odds ratio, Pandémies, République de Corée, Sujet âgé, Tomodensitométrie, Études rétrospectives.
English descriptors
- KwdEn :
- Adult (MeSH), Age Factors (MeSH), Aged (MeSH), Betacoronavirus (isolation & purification), C-Reactive Protein (analysis), Coronavirus Infections (diagnosis), Coronavirus Infections (diagnostic imaging), Coronavirus Infections (virology), Female (MeSH), Humans (MeSH), L-Lactate Dehydrogenase (metabolism), Lymphocyte Count (MeSH), Male (MeSH), Middle Aged (MeSH), Odds Ratio (MeSH), Pandemics (MeSH), Pneumonia, Viral (diagnosis), Pneumonia, Viral (diagnostic imaging), Pneumonia, Viral (virology), Republic of Korea (MeSH), Retrospective Studies (MeSH), Thorax (diagnostic imaging), Tomography, X-Ray Computed (MeSH).
- MESH :
- chemical , analysis : C-Reactive Protein.
- geographic : Republic of Korea.
- diagnosis : Coronavirus Infections, Pneumonia, Viral.
- diagnostic imaging : Coronavirus Infections, Pneumonia, Viral, Thorax.
- isolation & purification : Betacoronavirus.
- chemical , metabolism : L-Lactate Dehydrogenase.
- virology : Coronavirus Infections, Pneumonia, Viral.
- Adult, Age Factors, Aged, Female, Humans, Lymphocyte Count, Male, Middle Aged, Odds Ratio, Pandemics, Retrospective Studies, Tomography, X-Ray Computed.
Abstract
OBJECTIVE
We investigated the prevalence of pneumonia in novel coronavirus disease 2019 (COVID-19) patients using chest radiographs to identify the characteristics of those with initially negative chest radiographs, who were positive for pneumonia on follow-up.
MATERIALS AND METHODS
Retrospective cohort data of 236 COVID-19 patients were reviewed. Chest radiography was performed on admission, with serial radiographs obtained until discharge. The 'positive conversion group' was defined as patients whose initial chest radiographs were negative but were positive for pneumonia during follow-up. Patients with initially positive chest radiographs were defined as the 'initial pneumonia group.' Patients with negative initial and follow-up chest radiographs were defined as the 'non-pneumonia group.' Clinical and laboratory findings were compared between groups, and predictors of positive conversion were investigated.
RESULTS
Among 236 patients, 108 (45.8%) were in the non-pneumonia group, 69 (29.2%) were in the initial pneumonia group, and 59 (25%) were in the positive conversion group. The patients in the 'initial pneumonia group' and 'positive conversion group' were older, had higher C-reactive protein (CRP) and lactate dehydrogenase levels, and lower absolute lymphocyte counts than those in the 'non-pneumonia group' (all
CONCLUSION
More than a half of COVID-19 patients initially had normal chest radiographs; however, elderly patients (≥ 45 years of age) with abnormal laboratory findings (elevated CRP and low absolute lymphocyte counts) developed pneumonia on follow-up radiographs.
DOI: 10.3348/kjr.2020.0564
PubMed: 32729278
PubMed Central: PMC7462767
Affiliations:
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Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Park, Jae Seok" sort="Park, Jae Seok" uniqKey="Park J" first="Jae Seok" last="Park">Jae Seok Park</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Hyun, Miri" sort="Hyun, Miri" uniqKey="Hyun M" first="Miri" last="Hyun">Miri Hyun</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Kim, Hyun Ah" sort="Kim, Hyun Ah" uniqKey="Kim H" first="Hyun Ah" last="Kim">Hyun Ah Kim</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Kwon, Yong Shik" sort="Kwon, Yong Shik" uniqKey="Kwon Y" first="Yong Shik" last="Kwon">Yong Shik Kwon</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Choi, Sang Woong" sort="Choi, Sang Woong" uniqKey="Choi S" first="Sang Woong" last="Choi">Sang Woong Choi</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Daegu Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Daegu Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Moon, Sung Min" sort="Moon, Sung Min" uniqKey="Moon S" first="Sung Min" last="Moon">Sung Min Moon</name><affiliation wicri:level="1"><nlm:affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Suh, Young Joo" sort="Suh, Young Joo" uniqKey="Suh Y" first="Young Joo" last="Suh">Young Joo Suh</name><affiliation wicri:level="3"><nlm:affiliation>Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2020">2020</date><idno type="RBID">pubmed:32729278</idno><idno type="pmid">32729278</idno><idno type="doi">10.3348/kjr.2020.0564</idno><idno type="pmc">PMC7462767</idno><idno type="wicri:Area/Main/Corpus">000928</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000928</idno><idno type="wicri:Area/Main/Curation">000928</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000928</idno><idno type="wicri:Area/Main/Exploration">000928</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Characteristics of COVID-19 Patients Who Progress to Pneumonia on Follow-Up Chest Radiograph: 236 Patients from a Single Isolated Cohort in Daegu, South Korea.</title><author><name sortKey="Jung, Ha Kyung" sort="Jung, Ha Kyung" uniqKey="Jung H" first="Ha Kyung" last="Jung">Ha Kyung Jung</name><affiliation wicri:level="1"><nlm:affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Kim, Jin Young" sort="Kim, Jin Young" uniqKey="Kim J" first="Jin Young" last="Kim">Jin Young Kim</name><affiliation wicri:level="1"><nlm:affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea. jinkim0411@naver.com.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Lee, Mu Sook" sort="Lee, Mu Sook" uniqKey="Lee M" first="Mu Sook" last="Lee">Mu Sook Lee</name><affiliation wicri:level="1"><nlm:affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Lee, Ji Yeon" sort="Lee, Ji Yeon" uniqKey="Lee J" first="Ji Yeon" last="Lee">Ji Yeon Lee</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Park, Jae Seok" sort="Park, Jae Seok" uniqKey="Park J" first="Jae Seok" last="Park">Jae Seok Park</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Hyun, Miri" sort="Hyun, Miri" uniqKey="Hyun M" first="Miri" last="Hyun">Miri Hyun</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Kim, Hyun Ah" sort="Kim, Hyun Ah" uniqKey="Kim H" first="Hyun Ah" last="Kim">Hyun Ah Kim</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Kwon, Yong Shik" sort="Kwon, Yong Shik" uniqKey="Kwon Y" first="Yong Shik" last="Kwon">Yong Shik Kwon</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Choi, Sang Woong" sort="Choi, Sang Woong" uniqKey="Choi S" first="Sang Woong" last="Choi">Sang Woong Choi</name><affiliation wicri:level="1"><nlm:affiliation>Department of Internal Medicine, Daegu Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Internal Medicine, Daegu Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Moon, Sung Min" sort="Moon, Sung Min" uniqKey="Moon S" first="Sung Min" last="Moon">Sung Min Moon</name><affiliation wicri:level="1"><nlm:affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu</wicri:regionArea><wicri:noRegion>Daegu</wicri:noRegion></affiliation></author><author><name sortKey="Suh, Young Joo" sort="Suh, Young Joo" uniqKey="Suh Y" first="Young Joo" last="Suh">Young Joo Suh</name><affiliation wicri:level="3"><nlm:affiliation>Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul</wicri:regionArea><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author></analytic><series><title level="j">Korean journal of radiology</title><idno type="eISSN">2005-8330</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult (MeSH)</term><term>Age Factors (MeSH)</term><term>Aged (MeSH)</term><term>Betacoronavirus (isolation & purification)</term><term>C-Reactive Protein (analysis)</term><term>Coronavirus Infections (diagnosis)</term><term>Coronavirus Infections (diagnostic imaging)</term><term>Coronavirus Infections (virology)</term><term>Female (MeSH)</term><term>Humans (MeSH)</term><term>L-Lactate Dehydrogenase (metabolism)</term><term>Lymphocyte Count (MeSH)</term><term>Male (MeSH)</term><term>Middle Aged (MeSH)</term><term>Odds Ratio (MeSH)</term><term>Pandemics (MeSH)</term><term>Pneumonia, Viral (diagnosis)</term><term>Pneumonia, Viral (diagnostic imaging)</term><term>Pneumonia, Viral (virology)</term><term>Republic of Korea (MeSH)</term><term>Retrospective Studies (MeSH)</term><term>Thorax (diagnostic imaging)</term><term>Tomography, X-Ray Computed (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte (MeSH)</term><term>Adulte d'âge moyen (MeSH)</term><term>Betacoronavirus (isolement et purification)</term><term>Facteurs âges (MeSH)</term><term>Femelle (MeSH)</term><term>Humains (MeSH)</term><term>Infections à coronavirus (diagnostic)</term><term>Infections à coronavirus (imagerie diagnostique)</term><term>Infections à coronavirus (virologie)</term><term>L-Lactate dehydrogenase (métabolisme)</term><term>Mâle (MeSH)</term><term>Numération des lymphocytes (MeSH)</term><term>Odds ratio (MeSH)</term><term>Pandémies (MeSH)</term><term>Pneumopathie virale (diagnostic)</term><term>Pneumopathie virale (imagerie diagnostique)</term><term>Pneumopathie virale (virologie)</term><term>Protéine C-réactive (analyse)</term><term>République de Corée (MeSH)</term><term>Sujet âgé (MeSH)</term><term>Thorax (imagerie diagnostique)</term><term>Tomodensitométrie (MeSH)</term><term>Études rétrospectives (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>C-Reactive Protein</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Republic of Korea</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Protéine C-réactive</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Coronavirus Infections</term><term>Pneumonia, Viral</term></keywords><keywords scheme="MESH" qualifier="diagnostic" xml:lang="fr"><term>Infections à coronavirus</term><term>Pneumopathie virale</term></keywords><keywords scheme="MESH" qualifier="diagnostic imaging" xml:lang="en"><term>Coronavirus Infections</term><term>Pneumonia, Viral</term><term>Thorax</term></keywords><keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr"><term>Infections à coronavirus</term><term>Pneumopathie virale</term><term>Thorax</term></keywords><keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Betacoronavirus</term></keywords><keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Betacoronavirus</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>L-Lactate Dehydrogenase</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>L-Lactate dehydrogenase</term></keywords><keywords scheme="MESH" qualifier="virologie" xml:lang="fr"><term>Infections à coronavirus</term><term>Pneumopathie virale</term></keywords><keywords scheme="MESH" qualifier="virology" xml:lang="en"><term>Coronavirus Infections</term><term>Pneumonia, Viral</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Age Factors</term><term>Aged</term><term>Female</term><term>Humans</term><term>Lymphocyte Count</term><term>Male</term><term>Middle Aged</term><term>Odds Ratio</term><term>Pandemics</term><term>Retrospective Studies</term><term>Tomography, X-Ray Computed</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Facteurs âges</term><term>Femelle</term><term>Humains</term><term>Mâle</term><term>Numération des lymphocytes</term><term>Odds ratio</term><term>Pandémies</term><term>République de Corée</term><term>Sujet âgé</term><term>Tomodensitométrie</term><term>Études rétrospectives</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>OBJECTIVE</b></p><p>We investigated the prevalence of pneumonia in novel coronavirus disease 2019 (COVID-19) patients using chest radiographs to identify the characteristics of those with initially negative chest radiographs, who were positive for pneumonia on follow-up.</p></div><div type="abstract" xml:lang="en"><p><b>MATERIALS AND METHODS</b></p><p>Retrospective cohort data of 236 COVID-19 patients were reviewed. Chest radiography was performed on admission, with serial radiographs obtained until discharge. The 'positive conversion group' was defined as patients whose initial chest radiographs were negative but were positive for pneumonia during follow-up. Patients with initially positive chest radiographs were defined as the 'initial pneumonia group.' Patients with negative initial and follow-up chest radiographs were defined as the 'non-pneumonia group.' Clinical and laboratory findings were compared between groups, and predictors of positive conversion were investigated.</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>Among 236 patients, 108 (45.8%) were in the non-pneumonia group, 69 (29.2%) were in the initial pneumonia group, and 59 (25%) were in the positive conversion group. The patients in the 'initial pneumonia group' and 'positive conversion group' were older, had higher C-reactive protein (CRP) and lactate dehydrogenase levels, and lower absolute lymphocyte counts than those in the 'non-pneumonia group' (all </p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSION</b></p><p>More than a half of COVID-19 patients initially had normal chest radiographs; however, elderly patients (≥ 45 years of age) with abnormal laboratory findings (elevated CRP and low absolute lymphocyte counts) developed pneumonia on follow-up radiographs.</p></div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">32729278</PMID><DateCompleted><Year>2020</Year><Month>09</Month><Day>15</Day></DateCompleted><DateRevised><Year>2020</Year><Month>09</Month><Day>15</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">2005-8330</ISSN><JournalIssue CitedMedium="Internet"><Volume>21</Volume><Issue>11</Issue><PubDate><Year>2020</Year><Month>11</Month></PubDate></JournalIssue><Title>Korean journal of radiology</Title><ISOAbbreviation>Korean J Radiol</ISOAbbreviation></Journal><ArticleTitle>Characteristics of COVID-19 Patients Who Progress to Pneumonia on Follow-Up Chest Radiograph: 236 Patients from a Single Isolated Cohort in Daegu, South Korea.</ArticleTitle><Pagination><MedlinePgn>1265-1272</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3348/kjr.2020.0564</ELocationID><Abstract><AbstractText Label="OBJECTIVE">We investigated the prevalence of pneumonia in novel coronavirus disease 2019 (COVID-19) patients using chest radiographs to identify the characteristics of those with initially negative chest radiographs, who were positive for pneumonia on follow-up.</AbstractText><AbstractText Label="MATERIALS AND METHODS">Retrospective cohort data of 236 COVID-19 patients were reviewed. Chest radiography was performed on admission, with serial radiographs obtained until discharge. The 'positive conversion group' was defined as patients whose initial chest radiographs were negative but were positive for pneumonia during follow-up. Patients with initially positive chest radiographs were defined as the 'initial pneumonia group.' Patients with negative initial and follow-up chest radiographs were defined as the 'non-pneumonia group.' Clinical and laboratory findings were compared between groups, and predictors of positive conversion were investigated.</AbstractText><AbstractText Label="RESULTS">Among 236 patients, 108 (45.8%) were in the non-pneumonia group, 69 (29.2%) were in the initial pneumonia group, and 59 (25%) were in the positive conversion group. The patients in the 'initial pneumonia group' and 'positive conversion group' were older, had higher C-reactive protein (CRP) and lactate dehydrogenase levels, and lower absolute lymphocyte counts than those in the 'non-pneumonia group' (all <i>p</i> < 0.001). Among patients with negative initial chest radiographs, age ≥ 45 years (odds ratio [OR]: 3.93, 95% confidence interval [CI]: 1.76-8.75, <i>p</i> = 0.001), absolute lymphocyte count < 1500 cells/μL (OR: 2.25, 95% CI: 1.03-4.89, <i>p</i> = 0.041), and CRP > 0.5 mg/dL (OR: 3.91, 95% CI: 1.54-9.91, <i>p</i> = 0.004) were independent predictors for future development of pneumonia.</AbstractText><AbstractText Label="CONCLUSION">More than a half of COVID-19 patients initially had normal chest radiographs; however, elderly patients (≥ 45 years of age) with abnormal laboratory findings (elevated CRP and low absolute lymphocyte counts) developed pneumonia on follow-up radiographs.</AbstractText><CopyrightInformation>Copyright © 2020 The Korean Society of Radiology.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Jung</LastName><ForeName>Ha Kyung</ForeName><Initials>HK</Initials><Identifier Source="ORCID">0000-0003-4571-2688</Identifier><AffiliationInfo><Affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kim</LastName><ForeName>Jin Young</ForeName><Initials>JY</Initials><Identifier Source="ORCID">0000-0001-6714-8358</Identifier><AffiliationInfo><Affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea. jinkim0411@naver.com.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lee</LastName><ForeName>Mu Sook</ForeName><Initials>MS</Initials><Identifier Source="ORCID">0000-0002-0382-5564</Identifier><AffiliationInfo><Affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lee</LastName><ForeName>Ji Yeon</ForeName><Initials>JY</Initials><Identifier Source="ORCID">0000-0002-2788-1392</Identifier><AffiliationInfo><Affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Park</LastName><ForeName>Jae Seok</ForeName><Initials>JS</Initials><Identifier Source="ORCID">0000-0002-5751-7209</Identifier><AffiliationInfo><Affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Hyun</LastName><ForeName>Miri</ForeName><Initials>M</Initials><Identifier Source="ORCID">0000-0003-0062-342X</Identifier><AffiliationInfo><Affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kim</LastName><ForeName>Hyun Ah</ForeName><Initials>HA</Initials><Identifier Source="ORCID">0000-0002-9125-7156</Identifier><AffiliationInfo><Affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kwon</LastName><ForeName>Yong Shik</ForeName><Initials>YS</Initials><Identifier Source="ORCID">0000-0002-8003-7668</Identifier><AffiliationInfo><Affiliation>Department of Internal Medicine, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Choi</LastName><ForeName>Sang Woong</ForeName><Initials>SW</Initials><Identifier Source="ORCID">0000-0002-7811-4812</Identifier><AffiliationInfo><Affiliation>Department of Internal Medicine, Daegu Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Moon</LastName><ForeName>Sung Min</ForeName><Initials>SM</Initials><Identifier Source="ORCID">0000-0002-8009-2683</Identifier><AffiliationInfo><Affiliation>Department of Radiology, Dongsan Hospital, Keimyung University College of Medicine, Daegu, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Suh</LastName><ForeName>Young Joo</ForeName><Initials>YJ</Initials><Identifier Source="ORCID">0000-0002-2078-5832</Identifier><AffiliationInfo><Affiliation>Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><Agency>KMU</Agency><Country>International</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>07</Month><Day>27</Day></ArticleDate></Article><MedlineJournalInfo><Country>Korea (South)</Country><MedlineTA>Korean J Radiol</MedlineTA><NlmUniqueID>100956096</NlmUniqueID><ISSNLinking>1229-6929</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>9007-41-4</RegistryNumber><NameOfSubstance UI="D002097">C-Reactive Protein</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 1.1.1.27</RegistryNumber><NameOfSubstance UI="D007770">L-Lactate Dehydrogenase</NameOfSubstance></Chemical></ChemicalList><SupplMeshList><SupplMeshName Type="Disease" UI="C000657245">COVID-19</SupplMeshName><SupplMeshName Type="Organism" UI="C000656484">severe acute respiratory syndrome coronavirus 2</SupplMeshName></SupplMeshList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000328" MajorTopicYN="N">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000367" MajorTopicYN="N">Age Factors</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000368" MajorTopicYN="N">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000073640" MajorTopicYN="N">Betacoronavirus</DescriptorName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002097" MajorTopicYN="N">C-Reactive Protein</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018352" MajorTopicYN="N">Coronavirus Infections</DescriptorName><QualifierName UI="Q000175" MajorTopicYN="Y">diagnosis</QualifierName><QualifierName UI="Q000000981" MajorTopicYN="N">diagnostic imaging</QualifierName><QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005260" MajorTopicYN="N">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007770" MajorTopicYN="N">L-Lactate Dehydrogenase</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018655" MajorTopicYN="N">Lymphocyte Count</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D008875" MajorTopicYN="N">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016017" MajorTopicYN="N">Odds Ratio</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D058873" MajorTopicYN="N">Pandemics</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011024" MajorTopicYN="N">Pneumonia, Viral</DescriptorName><QualifierName UI="Q000175" MajorTopicYN="Y">diagnosis</QualifierName><QualifierName UI="Q000000981" MajorTopicYN="N">diagnostic imaging</QualifierName><QualifierName UI="Q000821" MajorTopicYN="N">virology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D056910" MajorTopicYN="N" Type="Geographic">Republic of Korea</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012189" MajorTopicYN="N">Retrospective Studies</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013909" MajorTopicYN="N">Thorax</DescriptorName><QualifierName UI="Q000000981" MajorTopicYN="Y">diagnostic imaging</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014057" MajorTopicYN="N">Tomography, X-Ray Computed</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="Y">C-reactive protein</Keyword><Keyword MajorTopicYN="Y">COVID-19</Keyword><Keyword MajorTopicYN="Y">Coronavirus</Keyword><Keyword MajorTopicYN="Y">Lactate dehydrogenase</Keyword><Keyword MajorTopicYN="Y">Lymphopenia</Keyword><Keyword MajorTopicYN="Y">Pneumonia</Keyword><Keyword MajorTopicYN="Y">Radiography</Keyword></KeywordList><CoiStatement>The authors have no potential conflicts of interest to disclose.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2020</Year><Month>05</Month><Day>08</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2020</Year><Month>06</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>06</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="pmc-release"><Year>2020</Year><Month>11</Month><Day>01</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2020</Year><Month>7</Month><Day>31</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2020</Year><Month>9</Month><Day>17</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate 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first="Ha Kyung" last="Jung">Ha Kyung Jung</name></noRegion><name sortKey="Choi, Sang Woong" sort="Choi, Sang Woong" uniqKey="Choi S" first="Sang Woong" last="Choi">Sang Woong Choi</name><name sortKey="Hyun, Miri" sort="Hyun, Miri" uniqKey="Hyun M" first="Miri" last="Hyun">Miri Hyun</name><name sortKey="Kim, Hyun Ah" sort="Kim, Hyun Ah" uniqKey="Kim H" first="Hyun Ah" last="Kim">Hyun Ah Kim</name><name sortKey="Kim, Jin Young" sort="Kim, Jin Young" uniqKey="Kim J" first="Jin Young" last="Kim">Jin Young Kim</name><name sortKey="Kwon, Yong Shik" sort="Kwon, Yong Shik" uniqKey="Kwon Y" first="Yong Shik" last="Kwon">Yong Shik Kwon</name><name sortKey="Lee, Ji Yeon" sort="Lee, Ji Yeon" uniqKey="Lee J" first="Ji Yeon" last="Lee">Ji Yeon Lee</name><name sortKey="Lee, Mu Sook" sort="Lee, Mu Sook" uniqKey="Lee M" first="Mu Sook" last="Lee">Mu Sook Lee</name><name sortKey="Moon, Sung Min" sort="Moon, Sung Min" uniqKey="Moon S" first="Sung Min" last="Moon">Sung Min Moon</name><name sortKey="Park, Jae Seok" sort="Park, Jae Seok" uniqKey="Park J" first="Jae Seok" last="Park">Jae Seok Park</name><name sortKey="Suh, Young Joo" sort="Suh, Young Joo" uniqKey="Suh Y" first="Young Joo" last="Suh">Young Joo Suh</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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