Bacterial etiology of chronic bronchitis exacerbations treated by primary care physicians
Abstract
OBJECTIVE: Few studies have been carried out to determine the prevalence of microorganisms causing exacerbations of chronic bronchitis in the community setting. The aim of the present study was to determine the bacterial etiology of chronic bronchitis exacerbations in patients not requiring hospitalization.
PATIENTS AND METHODS: This observational, cross-sectional, multicenter study was carried out at the primary care level during 2 weeks (in November 2001 and January 2002). All laboratory work was carried out at a single center. We studied 1,947 patients with mild-moderate exacerbations treated by 650 primary care physicians. All the sputum samples received for centralized processing were subject to Gram staining, microscopic examination, and bacterial culture.
RESULTS: Out of 1,537 cultures of sputum samples collected, 498 had good cell quality for microscopic examination (32.4%). Of the 498 good quality samples analyzed, 246 (49.4%) were positive and 468 isolates were obtained. The most commonly isolated germ was Streptococcus pneumoniae (163 cases, 34.8%), followed by Moraxella catarrhalis (112, 23.9%), and Haemophilus influenzae (59, 12.6%). In 1.2% of the S. pneumoniae isolates resistance was found to amoxicillin; resistance to macrolides was found in 34.3%. The antibiotics most commonly prescribed, however, were macrolides (38.3% of the prescriptions).
CONCLUSIONS: S. pneumoniae was the microorganism most frequently isolated in cases of chronic bronchitis exacerbation…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 1,947 participants or records.
Read the paper
Related studies
- Impact of antibiotics on the human microbiome and consequences for host health
- Antibiotics in the clinical pipeline in October 2019
- The incidence of collagen-associated adverse events in pediatric population with the use of fluoroquinolones: a nationwide cohort study in Taiwan
- Research Communications of the 32nd ECVIM-CA Online Congress
- Singlet-Oxygen Therapy. Scientific And Methodological Materials
- Artificial Intelligence in Pharmacovigilance
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.