Refractory pneumonia caused by Prevotella heparinolytica: a case report.
Prevotella
heparinolytica
Metagenomics next-generation sequencing
Oral infections
Pneumonia
Journal
Journal of medical case reports
ISSN: 1752-1947
Titre abrégé: J Med Case Rep
Pays: England
ID NLM: 101293382
Informations de publication
Date de publication:
30 Apr 2024
30 Apr 2024
Historique:
received:
26
10
2023
accepted:
03
04
2024
medline:
30
4
2024
pubmed:
30
4
2024
entrez:
29
4
2024
Statut:
epublish
Résumé
Prevotella heparinolytica is a Gram-negative bacterium that is commonly found in the oral, intestinal, and urinary tracts. It has been extensively studied in lower respiratory tract infections in horses, which has heparinolytic activity and can secrete heparinase and further induces virulence factors in cells and causes disease. However, no such cases have been reported in humans. A 58-year-old male patient from China presented to the respiratory clinic in Suzhou with a productive cough producing white sputum for 20 days and fever for 3 days. Prior to this visit, a chest computed tomography scan was conducted, which revealed multiple patchy nodular opacities in both lungs. On admission, the patient presented with a temperature of 38.1 °C and a pulse rate of 110 beats per minute. Despite routine anti-infective treatment with moxifloxacin, his temperature fluctuated and the treatment was ineffective. The patient was diagnosed with Prevotella heparinolytica infection through metagenomic next-generation sequencing. Therefore, the antibiotics were switched to piperacillin-tazobactam in combination with ornidazole, which alleviated his symptoms; 1 week after discharge, the patient returned to the clinic for a follow-up chest computed tomography, and the opacities on the lungs continued to be absorbed. Prevotella heparinolytica is an opportunistic pathogen. However, it has not been reported in human pneumonia. In refractory pneumonia, measures such as metagenomic next-generation sequencing can be used to identify pathogens and help guide antibiotic selection and early support.
Sections du résumé
BACKGROUND
BACKGROUND
Prevotella heparinolytica is a Gram-negative bacterium that is commonly found in the oral, intestinal, and urinary tracts. It has been extensively studied in lower respiratory tract infections in horses, which has heparinolytic activity and can secrete heparinase and further induces virulence factors in cells and causes disease. However, no such cases have been reported in humans.
CASE PRESENTATION
METHODS
A 58-year-old male patient from China presented to the respiratory clinic in Suzhou with a productive cough producing white sputum for 20 days and fever for 3 days. Prior to this visit, a chest computed tomography scan was conducted, which revealed multiple patchy nodular opacities in both lungs. On admission, the patient presented with a temperature of 38.1 °C and a pulse rate of 110 beats per minute. Despite routine anti-infective treatment with moxifloxacin, his temperature fluctuated and the treatment was ineffective. The patient was diagnosed with Prevotella heparinolytica infection through metagenomic next-generation sequencing. Therefore, the antibiotics were switched to piperacillin-tazobactam in combination with ornidazole, which alleviated his symptoms; 1 week after discharge, the patient returned to the clinic for a follow-up chest computed tomography, and the opacities on the lungs continued to be absorbed.
CONCLUSION
CONCLUSIONS
Prevotella heparinolytica is an opportunistic pathogen. However, it has not been reported in human pneumonia. In refractory pneumonia, measures such as metagenomic next-generation sequencing can be used to identify pathogens and help guide antibiotic selection and early support.
Identifiants
pubmed: 38685076
doi: 10.1186/s13256-024-04538-8
pii: 10.1186/s13256-024-04538-8
doi:
Substances chimiques
Anti-Bacterial Agents
0
Piperacillin, Tazobactam Drug Combination
157044-21-8
Types de publication
Case Reports
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
213Subventions
Organisme : Science and Technology Program of Suzhou
ID : SYSD2019104
Organisme : Second Affiliated Hospital of Soochow University
ID : SDFEYBS2002
Organisme : Second Affiliated Hospital of Soochow University
ID : SDFEYHT2224
Organisme : Medical Science Research Funding Project of Beijing Medical Health Public Welfare Foundation
ID : YWJKJJHKYJJ-HX05
Informations de copyright
© 2024. The Author(s).
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