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Aerococcus urinae, a rare cause of aortic root abscess: a case report
BACKGROUND: Aerococcus urinae is a bacterium of emerging clinical interest that most commonly causes urinary tract infections (UTI) but can also result in invasive infections. It is a catalase-negative, alpha-haemolytic gram-positive coccus that grows in clusters or tetrads and usually causes urinar...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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BioMed Central
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9670598/ https://www.ncbi.nlm.nih.gov/pubmed/36397095 http://dx.doi.org/10.1186/s13256-022-03564-8 |
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author | Tiong, Chong Wei Bartolo, Caroline Walton, Aaron Athan, Eugene |
author_facet | Tiong, Chong Wei Bartolo, Caroline Walton, Aaron Athan, Eugene |
author_sort | Tiong, Chong Wei |
collection | PubMed |
description | BACKGROUND: Aerococcus urinae is a bacterium of emerging clinical interest that most commonly causes urinary tract infections (UTI) but can also result in invasive infections. It is a catalase-negative, alpha-haemolytic gram-positive coccus that grows in clusters or tetrads and usually causes urinary tract infections. While rare, infective endocarditis must be considered when A. urinae is isolated in blood culture. The mortality rate of A. urinae infective endocarditis is similar to overall endocarditis mortality. We report a rare case of aortic root abscess caused by A. urinae. CASE PRESENTATION: An 82-year-old Caucasian man presented to hospital with behavioural change and severe malnutrition and was managed for psychotic depression. On day 34 of his inpatient stay, a febrile episode prompted blood cultures, which grew Aerococcus. urinae. Investigations revealed a bicuspid aortic valve, aortic valve endocarditis and aortic root abscess. He also had prostatomegaly. He underwent aortic valve replacement, received 6 weeks of intravenous ceftriaxone and recovered. CONCLUSION: Infective endocarditis should be considered in patients with persistent Aerococcus urinae bacteraemia. Accurate identification with mass spectrometry is recommended to avoid misidentification as staphylococcus, streptococcus or enterococcus, which is a possibility with conventional laboratory methods. |
format | Online Article Text |
id | pubmed-9670598 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-96705982022-11-18 Aerococcus urinae, a rare cause of aortic root abscess: a case report Tiong, Chong Wei Bartolo, Caroline Walton, Aaron Athan, Eugene J Med Case Rep Case Report BACKGROUND: Aerococcus urinae is a bacterium of emerging clinical interest that most commonly causes urinary tract infections (UTI) but can also result in invasive infections. It is a catalase-negative, alpha-haemolytic gram-positive coccus that grows in clusters or tetrads and usually causes urinary tract infections. While rare, infective endocarditis must be considered when A. urinae is isolated in blood culture. The mortality rate of A. urinae infective endocarditis is similar to overall endocarditis mortality. We report a rare case of aortic root abscess caused by A. urinae. CASE PRESENTATION: An 82-year-old Caucasian man presented to hospital with behavioural change and severe malnutrition and was managed for psychotic depression. On day 34 of his inpatient stay, a febrile episode prompted blood cultures, which grew Aerococcus. urinae. Investigations revealed a bicuspid aortic valve, aortic valve endocarditis and aortic root abscess. He also had prostatomegaly. He underwent aortic valve replacement, received 6 weeks of intravenous ceftriaxone and recovered. CONCLUSION: Infective endocarditis should be considered in patients with persistent Aerococcus urinae bacteraemia. Accurate identification with mass spectrometry is recommended to avoid misidentification as staphylococcus, streptococcus or enterococcus, which is a possibility with conventional laboratory methods. BioMed Central 2022-11-17 /pmc/articles/PMC9670598/ /pubmed/36397095 http://dx.doi.org/10.1186/s13256-022-03564-8 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Case Report Tiong, Chong Wei Bartolo, Caroline Walton, Aaron Athan, Eugene Aerococcus urinae, a rare cause of aortic root abscess: a case report |
title | Aerococcus urinae, a rare cause of aortic root abscess: a case report |
title_full | Aerococcus urinae, a rare cause of aortic root abscess: a case report |
title_fullStr | Aerococcus urinae, a rare cause of aortic root abscess: a case report |
title_full_unstemmed | Aerococcus urinae, a rare cause of aortic root abscess: a case report |
title_short | Aerococcus urinae, a rare cause of aortic root abscess: a case report |
title_sort | aerococcus urinae, a rare cause of aortic root abscess: a case report |
topic | Case Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9670598/ https://www.ncbi.nlm.nih.gov/pubmed/36397095 http://dx.doi.org/10.1186/s13256-022-03564-8 |
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