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Prevalence and clinical significance of community‐acquired penicillin‐resistant pneumococcal pneumonia in Thailand
Author(s) -
SANGTHAWAN Patchanee,
CHANTARATCHADA Sudaluck,
CHANTHADISAI glak,
WATTANATHUM Anan
Publication year - 2003
Publication title -
respirology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.857
H-Index - 85
eISSN - 1440-1843
pISSN - 1323-7799
DOI - 10.1046/j.1440-1843.2003.00444.x
Subject(s) - medicine , penicillin , streptococcus pneumoniae , pneumonia , erythromycin , pneumococcal pneumonia , community acquired pneumonia , ceftriaxone , antibiotics , microbiology and biotechnology , drug resistance , antibiotic resistance , biology
Objective: The study aimed to evaluate the prevalence, clinical significance and outcome of community‐acquired penicillin‐resistant Streptococcus pneumoniae (PRSP) pneumonia in Thailand. Methodology: We conducted a prospective study in culture‐proven pneumococcal pneumonia. Pneumococci were defined as susceptible, intermediate resistance and high resistance according to the definitions of the United States National Committee for Clinical Laboratory Standards (NCCLS). Results: Forty‐six consecutive patients were enrolled. Of the S. pneumoniae isolates collected, 41.3% were resistant to penicillin (37% intermediate resistance and 4.3% high resistance). Resistance to other antibiotics was 13% to ceftriaxone (8.7% intermediate resistance and 4.3% high resistance), 34.8% to erythromycin, 39.1% to tetracycline, 26.1% to chloramphenicol, and 43.5% to trimethoprim ‐sulfamethoxazole. Prior antibiotic use within 3 months was significantly associated with resistance to penicillin. The overall mortality of pneumococcal pneumonia was 26.1%. Multilobar involvement and requirement for mechanical ventilation proved to be associated with mortality. However, resistance to penicillin or ceftriaxone was not associated with death. Conclusions: According to the US NCCLS guidelines, we found a high prevalence of drug‐resistant S. pneumoniae in Thai patients with community‐acquired pneumonia. Prior antibiotic use was significantly associated with penicillin resistance. However, the outcome was not related to in vitro penicillin susceptibility of S. pneumoniae isolated from the patients.