Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infant

Acinetobacter baumannii is a gram-negative coccobacilli, mainly causing nosocomial infections with poor prognosis, especially in patients with prolonged hospitalization or antibiotics administration. A. baumannii pneumonia is the most common clinical form and usually occurs in critically ill patient...

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Main Authors: Yi Liao, Jiapeng Xiao, Feng Fang, Hua Zhou, Lingling Liu, Xinglou Liu
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2023.1135178/full
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author Yi Liao
Jiapeng Xiao
Feng Fang
Hua Zhou
Lingling Liu
Xinglou Liu
author_facet Yi Liao
Jiapeng Xiao
Feng Fang
Hua Zhou
Lingling Liu
Xinglou Liu
author_sort Yi Liao
collection DOAJ
description Acinetobacter baumannii is a gram-negative coccobacilli, mainly causing nosocomial infections with poor prognosis, especially in patients with prolonged hospitalization or antibiotics administration. A. baumannii pneumonia is the most common clinical form and usually occurs in critically ill patients in the intensive care unit. However, septic arthritis caused by A. baumannii is rarely reported. In this report, we describe a case of A. baumannii septic arthritis combined with incomplete Kawasaki disease in an infant. The child's chief complaint was a 2-week intermittent fever with poor response to antibiotics. Initial physical examination revealed swollen lymph nodes in the neck, pharynx congestion, and the appearance of rashes. Combined with laboratory tests, the diagnosis of incomplete Kawasaki disease was considered. After administration of high-dose intravenous immunoglobulin and corticosteroids, the child's fever improved and periungual desquamation appeared simultaneously. Swelling of the right knee occurred 5 days after the fever improved and imaging tests of MRI and ultrasound suggested the existence of infection. A diagnosis of septic arthritis was established subsequently, and arthroscopy was carried out. A. baumannii was finally identified by metagenomics next-generation sequencing of joint draining fluid for pathogenic microorganisms. Treatment with meropenem was then started. The patient eventually recovered and was discharged from the hospital after 23 days of treatment with meropenem. Although A. baumannii is not a common bacterium of septic arthritis, this rare infection can still occur in infants. Early diagnosis, pathogenic identification, and target antibiotic treatment are important to reduce the occurrence of joint sequelae.
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spelling doaj.art-d3f6fcd1858b452b9744f2bee4ea12502023-03-01T06:33:02ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2023-03-011010.3389/fmed.2023.11351781135178Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infantYi Liao0Jiapeng Xiao1Feng Fang2Hua Zhou3Lingling Liu4Xinglou Liu5Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Pediatrics, Luotian County People's Hospital, Huanggang, ChinaDepartment of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaDepartment of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, ChinaAcinetobacter baumannii is a gram-negative coccobacilli, mainly causing nosocomial infections with poor prognosis, especially in patients with prolonged hospitalization or antibiotics administration. A. baumannii pneumonia is the most common clinical form and usually occurs in critically ill patients in the intensive care unit. However, septic arthritis caused by A. baumannii is rarely reported. In this report, we describe a case of A. baumannii septic arthritis combined with incomplete Kawasaki disease in an infant. The child's chief complaint was a 2-week intermittent fever with poor response to antibiotics. Initial physical examination revealed swollen lymph nodes in the neck, pharynx congestion, and the appearance of rashes. Combined with laboratory tests, the diagnosis of incomplete Kawasaki disease was considered. After administration of high-dose intravenous immunoglobulin and corticosteroids, the child's fever improved and periungual desquamation appeared simultaneously. Swelling of the right knee occurred 5 days after the fever improved and imaging tests of MRI and ultrasound suggested the existence of infection. A diagnosis of septic arthritis was established subsequently, and arthroscopy was carried out. A. baumannii was finally identified by metagenomics next-generation sequencing of joint draining fluid for pathogenic microorganisms. Treatment with meropenem was then started. The patient eventually recovered and was discharged from the hospital after 23 days of treatment with meropenem. Although A. baumannii is not a common bacterium of septic arthritis, this rare infection can still occur in infants. Early diagnosis, pathogenic identification, and target antibiotic treatment are important to reduce the occurrence of joint sequelae.https://www.frontiersin.org/articles/10.3389/fmed.2023.1135178/fullAcinetobacter baumanniiseptic arthritisinfantmetagenomics next-generation sequencingcase report
spellingShingle Yi Liao
Jiapeng Xiao
Feng Fang
Hua Zhou
Lingling Liu
Xinglou Liu
Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infant
Frontiers in Medicine
Acinetobacter baumannii
septic arthritis
infant
metagenomics next-generation sequencing
case report
title Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infant
title_full Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infant
title_fullStr Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infant
title_full_unstemmed Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infant
title_short Case report: Acinetobacter baumannii septic arthritis in an immunocompetent infant
title_sort case report acinetobacter baumannii septic arthritis in an immunocompetent infant
topic Acinetobacter baumannii
septic arthritis
infant
metagenomics next-generation sequencing
case report
url https://www.frontiersin.org/articles/10.3389/fmed.2023.1135178/full
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