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Published on: April 19, 2024
[Microbial intestinal biocenosis in lingering and complicated course of community pneumonia]
Aim:
To characterize species and quantitative composition of intestinal microflora in lingering and complicated course of community pneumonia (CP). MATERIAL AND METHODS. The trial enrolled 130 CP patients and 30 healthy controls. Severe and moderate CP was diagnosed in 118 patients, mild CP--in 12 patients. In 36 (27.6%) patients the disease stayed long. Among the complications (47.7%) there were respiratory insufficiency of degree I-II (n = 29), exudative pleurisy (n = 7), toxic shock (n = 6), abscess of the lung (n = 5), acute vascular failure (n = 5), chronic renal failure (n = 5), DIC syndrome (n = 3), myocarditis (n = 2). Intestinal microflora was studied quantitatively and qualitatively using domestic materials.
Results:
Dysbacteriosis often accompanies CP--42.3% in acute period, 18.8% in convalescence. Dysbacteriosis was more severe in severe CP. Compared to healthy controls, CP patients' intestine contains low content of bifidobacteria (100-fold), nonpathogenic enterococci and escherichia with normal enzymatic activity (10-fold and more). The number of saprophytic and epidermal staphylococci is very high- a 100-fold rise. In lingering pneumonia 2-3 times more often than in mild acute CP feces contain escherichia with low enzymatic activity, lactose-negative, staphylococci. Patients with pneumonia complications had dysbacteriosis of degree I, II, III and IV in 19.4, 30.4, 8.1 and 6.5% cases, respectively.
Conclusion:
Long-term administration of antibiotics in patients with lingering and complicated CP destroys balance of intestinal microflora and thus influences the course of CP. This dictates the necessity to conduct fecal microflora analysis in patients with CP irrespective of intestinal diseases.
Insights
Community pneumonia (CP) significantly alters intestinal microflora, leading to dysbacteriosis. Antibiotic use in complicated CP further disrupts gut balance, impacting disease course and necessitating fecal microflora analysis.
Area of Science:
- Microbiology
- Pulmonology
- Gastroenterology
Background:
- Community pneumonia (CP) is a significant health concern with complex courses.
- Intestinal microflora plays a crucial role in overall health and immune function.
- Dysbacteriosis, an imbalance in gut microbiota, is increasingly recognized as a factor in various diseases.
Purpose of the Study:
- To characterize the species and quantitative composition of intestinal microflora in patients with community pneumonia (CP).
- To investigate the impact of lingering and complicated CP courses on intestinal microflora.
- To assess the relationship between dysbacteriosis and CP severity and complications.
Main Methods:
- Enrolled 130 CP patients and 30 healthy controls for comparative analysis.
- Classified CP severity (mild, moderate, severe) and identified complications (e.g., respiratory insufficiency, toxic shock, lung abscess).
- Quantitatively and qualitatively analyzed intestinal microflora composition using standard microbiological techniques.
Main Results:
- Dysbacteriosis was prevalent in CP patients (42.3% acute, 18.8% convalescence), more severe in critical cases.
- CP patients exhibited significantly lower levels of beneficial bacteria (Bifidobacteria, Enterococci, Escherichia) and a marked increase in Staphylococci.
- Lingering pneumonia cases showed higher prevalence of specific E. coli strains and Staphylococci compared to mild acute CP.
Conclusions:
- Community pneumonia is strongly associated with significant intestinal dysbacteriosis.
- Long-term antibiotic use in complicated CP exacerbates microflora imbalance, potentially worsening the disease.
- Fecal microflora analysis is recommended for all CP patients, regardless of gastrointestinal symptoms, to guide management.
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