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[Serologic studies in the diagnosis of pneumonia]
K F Schmitz1, K Hoffmann, F Müller
1Abteilung für Kardiologie, Pneumologie und Angiologie, Universität Düsseldorf.
Abstract:
The importance of serological determination procedures for the diagnosis of pathogens was investigated in 207 episodes of pneumonia. The pathogenic organisms were detected in 138 cases; in 40 cases serological analysis helped to establish the diagnosis, while in 11 cases of pneumonia, the diagnosis was possible only with serology. The organisms most commonly found by serological investigations were Cytomegalovirus (n = 10), Aspergillus fumigatus (n = 7), and the influenza B virus (n = 7). Multiple infections, usually triggered by bacterial pathogens, were found in 48% of the cases of pneumonia with serological evidence of pathogens. In 71 episodes of pneumonia, the patients were immunosuppressed; in 11 cases, the causative organism was detected serologically.
Insights
Serological tests are crucial for diagnosing pneumonia, aiding in pathogen identification in many cases. These methods were essential for diagnosing 11 pneumonia cases and identifying common pathogens like Cytomegalovirus.
Area of Science:
- Infectious Diseases
- Clinical Microbiology
- Immunology
Context:
- Pneumonia diagnosis presents challenges in identifying causative pathogens.
- Serological determination procedures offer a valuable diagnostic approach.
Purpose:
- To investigate the utility of serological determination procedures in diagnosing pneumonia.
- To assess the contribution of serology to pathogen detection and diagnosis.
Summary:
- Serological tests were employed in 207 pneumonia episodes, detecting pathogens in 138 cases.
- Serology aided diagnosis in 40 cases and was essential for 11 diagnoses.
- Commonly identified pathogens included Cytomegalovirus, Aspergillus fumigatus, and influenza B virus.
- Multiple infections were noted in 48% of pneumonia cases with serological pathogen evidence.
- In immunosuppressed patients (71 episodes), serology identified the causative organism in 11 cases.
Impact:
- Highlights the significance of serological methods in clinical microbiology and infectious disease diagnosis.
- Demonstrates the role of serology in identifying specific pathogens, including viral and fungal agents.
- Underscores the importance of serological testing for pneumonia, particularly in complex or immunosuppressed cases.