Aetiology and antimicrobial susceptibility pattern of bacterial isolates in community acquired pneumonia patients at Asir region, Saudi Arabia
Abstract
BACKGROUND: Community acquired pneumonia is a commonly presenting respiratory tract infection around the world. Its treatment is problematic at times because of diversity of infecting organisms and change in susceptibility pattern to commonly prescribed antimicrobials.
METHODS: This was a single centred prospective cross sectional study. About 165 patients diagnosed with community acquired pneumonia were included and blood samples, sputum samples were taken for culture sensitivity and antimicrobial susceptibility.
RESULTS: Of the 165 patients (43% males and 57% females), 77 (46.6%) patients tested positive for bacterial pathogens out of a total of 165. The most common pathogen was Streptococcus pneumonia (34%) followed on by Hemophilus influenza (16%), Staphylococcus aureus (13%) Klebsiella (12%), Pseudomonas aeruginosa (10%), Legionella (6%), Eschericha coli (5%) and Proteus mirabilis (2%). The sensitivity pattern of all 77 bacterial isolates was high for cephalosporins (ceftriaxone, 81%; ceftazidime, 80%), penicillins (amoxicillin/sulbactam, 70%), quinolones (levofloxacin, 74%) and aminoglycosides (amikacin, 80.5%). The sensitivity to macrolides (azithromycin, 59.7%; clarithromycin, 53.2%) and tetracycline's (55.8%) is somewhat intermediate and low for ampicillin (42.8%) and cotrimoxazole (51.9%).
CONCLUSION: The decreased susceptibility to macrolides and tetracyclines is a matter of concern and judicious use of antimicrobials should be done to prevent further rates of…
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: 165 participants or records.
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