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Bacteriological profile and drug resistance patterns of blood culture Isolates: A five year audit from tertiary care hospital
Fatima Fasih, Samina Baig, Sambreen Zameer3 Saima Naseem, Shaheen Sharafat
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Volume 11 - Issue 6     November - December 2019
Download Abstract:
Objective: To identify the bacteriological profile of bloodstream infections and their antibiotic susceptibility pattern.
Study Design: Descriptive observational study (Retrospective study).
Place and Duration: Microbiology section, Dow University of Health Sciences from 2nd January, 2010 to 3rd January, 2015.
Methodology: Blood culture reports were screened for the presence of bacterial growth. Then Frequency of different bacterial isolates along with their antibiotic resistance pattern was noted and analyzed.
Results: During the study period, 13544 blood cultures were analyzed of which 18% were positive for growth. Among those 97% were bacterial isolates and only 2% were candida species. Among the Gram positive isolates, Coagulase negative Staphylococcus (20%) and Staphylococcus aureus (14%) were the commonest. Among the Gram-negative isolates, Salmonella species (18%) followed by Klebsiella species (15.7%) and E.coli (12.9%) and Pseudomonas species (7%). Staphylococcus aureus was found highly resistant to penicillin (95%), followed by erythromycin (68%), Co-trimoxazole (56%), Fusidic acid (54%) and Oxacillin (48%).Resistance was found to be on lower side against ciprofloxacin (38%), gentamicin (21%), chloramphenicol (13%) and Amikacin (6%).All isolates were sensitive to Linezolid. Salmonella species was resistant to ampicillin (54%) followed by Ciprofloxacin (44%), Co-trimoxazole (44%) and Chloramphenicol (44%).
Conclusion: Both Gram positive and Gram negative bacteria were responsible for blood stream infection. Piperacillin/Tazobactam, Meropenem and Amikacin were the most effective antibiotics against Gram negative bacteria while vancomycin and linezolid was most sensitive antibiotic against Gram positive bacteria.
Keywords: Bloodstream, Infections, Bacteriological profile, Gram positive bacteria, Gram negative bacteria, Antibiotic susceptibility, Drug resistance.

How to Cite This:

Fasih F, Baig S, Zameer S, Naseem S, Sharafat S. Bacteriological profile and drug resistance patterns of blood culture isolates: A five year audit from tertiary care hospital.Isra Med J. 2019; 11(6): 449-453.

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