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Updated: Feb 15, 2026

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion
Published on: November 10, 2023
First case of pleural empyema and pulmonary abscess caused by Eggerthia catenaformis
Pauline Duport1, Guillaume Miltgen2, Clément Kebbabi3
1Réanimation Polyvalente, Centre Hospitalier Universitaire Félix Guyon, Allée des Topazes, 97405 Saint Denis, France.
Abstract:
Few data are available on the anaerobic bacterium Eggerthia catenaformis. Here we report the first clinical case of a patient with sepsis caused by pulmonary infection with E. catenaformis, and present the minimal inhibitory concentrations of different antimicrobial agents.
Insights
This study presents the first clinical case of Eggerthia catenaformis causing pulmonary sepsis. It also details the minimal inhibitory concentrations of various antimicrobial agents against this rare anaerobic bacterium.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Medicine
Background:
- Limited data exist on the anaerobic bacterium Eggerthia catenaformis.
- Eggerthia catenaformis is an understudied organism with few reported clinical associations.
Observation:
- A clinical case of sepsis secondary to pulmonary infection with Eggerthia catenaformis is described.
- The patient presented with symptoms indicative of a severe lung infection leading to sepsis.
Findings:
- This report details the first documented instance of Eggerthia catenaformis causing a pulmonary infection and subsequent sepsis.
- Minimal inhibitory concentrations (MICs) for several antimicrobial agents against Eggerthia catenaformis were determined.
Implications:
- This case expands the known clinical spectrum of Eggerthia catenaformis infections.
- The provided antimicrobial susceptibility data are crucial for guiding treatment strategies for Eggerthia catenaformis infections.
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