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Antimicrobial susceptibility pattern of bacterial isolates from wound infection and their sensitivity to alternative topical agents at Jimma University Specialized Hospital, South-West Ethiopia.

Mama M, Abdissa A, Sewunet T - Ann. Clin. Microbiol. Antimicrob. (2014)

Bottom Line: The overall multiple drug resistance patterns were found to be 85%.On in vitro sensitivity testing, ampicillin, penicillin, cephalothin and tetracycline were the least effective.Gentamicin, norfloxacin, ciprofloxacin, vancomycin and amikacin were the most effective antibiotics.

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Affiliation: Department of Medical Laboratory Science and Pathology, Jimma University, Jimma, Ethiopia. tsegishs2010@gmail.com.

ABSTRACT

Background: Wound infection is one of the health problems that are caused and aggravated by the invasion of pathogenic organisms. Information on local pathogens and sensitivity to antimicrobial agents, and topical agents like acetic acid is crucial for successful treatment of wounds.

Objectives: To determine antimicrobial susceptibility pattern of bacterial isolates from wound infection and their sensitivity to alternative topical agents at Jimma University Specialized Hospital.

Methods: A cross sectional study was conducted among patients with wound infection visiting Jimma University Specialized Hospital, from May to September 2013. Wound swab was collected using sterile cotton swabs and processed for bacterial isolation and susceptibility testing to antimicrobial agents, acetic acid, hydrogen peroxide and dabkin solution following standard bacteriological techniques. Biochemical tests were done to identify the species of the organisms. Sensitivity testing was done using Kirby- Baur disk diffusion method. Minimum inhibitory and bactericidal concentration was done using tube dilution method.

Results: In this study 145 bacterial isolates were recovered from 150 specimens showing an isolation rate of 87.3%. The predominant bacteria isolated from the infected wounds were Staphylococcus aureus 47 (32.4%) followed by Escherichia coli 29 (20%), Proteus species 23 (16%), Coagulase negative Staphylococci 21 (14.5%), Klebsiella pneumoniae 14 (10%) and Pseudomonas aeruginosa 11 (8%). All isolates showed high frequency of resistance to ampicillin, penicillin, cephalothin and tetracycline. The overall multiple drug resistance patterns were found to be 85%. Acetic acid (0.5%), Dabkin solution (1%) and 3% hydrogen peroxide were bactericidal to all isolated bacteria and lethal effect observed when applied for 10 minutes.

Conclusions: On in vitro sensitivity testing, ampicillin, penicillin, cephalothin and tetracycline were the least effective. Gentamicin, norfloxacin, ciprofloxacin, vancomycin and amikacin were the most effective antibiotics. Acetic acid (0.5%), dabkin solution (1%) and H2O2 (3%) were bactericidal to all isolates.

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Percentage of bacteria isolated from patients with infected wounds at JUSH, Jimma, May-September, 2013.
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Figure 1: Percentage of bacteria isolated from patients with infected wounds at JUSH, Jimma, May-September, 2013.

Mentions: Of the 150 swabs 131 (87.4%) were culture positive for bacterial pathogens, while 19 (12.6%) were bacteriologically sterile. The presence of only one species isolated from each sample was the most frequent (91.6%) while, more than one species were isolated from (8.4%) of the total swabs. A total of 145 bacterial isolates were obtained, 77 (53%) were gram negative while 68 (47%) were gram positive. S. aureus was the predominant organism isolated 47 (32.4%), followed by Escherichia coli (E. coli) 29 (20%), Proteus spps 23 (16%), coagulase negative Staphylococci 21 (14.5%), Klebsiella pneumoniae (K. pneumoniae) 14 (10%) and P. aeruginosa 11 (8%) (Figure 1).


Antimicrobial susceptibility pattern of bacterial isolates from wound infection and their sensitivity to alternative topical agents at Jimma University Specialized Hospital, South-West Ethiopia.

Mama M, Abdissa A, Sewunet T - Ann. Clin. Microbiol. Antimicrob. (2014)

Percentage of bacteria isolated from patients with infected wounds at JUSH, Jimma, May-September, 2013.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4017222&req=5

Figure 1: Percentage of bacteria isolated from patients with infected wounds at JUSH, Jimma, May-September, 2013.
Mentions: Of the 150 swabs 131 (87.4%) were culture positive for bacterial pathogens, while 19 (12.6%) were bacteriologically sterile. The presence of only one species isolated from each sample was the most frequent (91.6%) while, more than one species were isolated from (8.4%) of the total swabs. A total of 145 bacterial isolates were obtained, 77 (53%) were gram negative while 68 (47%) were gram positive. S. aureus was the predominant organism isolated 47 (32.4%), followed by Escherichia coli (E. coli) 29 (20%), Proteus spps 23 (16%), coagulase negative Staphylococci 21 (14.5%), Klebsiella pneumoniae (K. pneumoniae) 14 (10%) and P. aeruginosa 11 (8%) (Figure 1).

Bottom Line: The overall multiple drug resistance patterns were found to be 85%.On in vitro sensitivity testing, ampicillin, penicillin, cephalothin and tetracycline were the least effective.Gentamicin, norfloxacin, ciprofloxacin, vancomycin and amikacin were the most effective antibiotics.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Medical Laboratory Science and Pathology, Jimma University, Jimma, Ethiopia. tsegishs2010@gmail.com.

ABSTRACT

Background: Wound infection is one of the health problems that are caused and aggravated by the invasion of pathogenic organisms. Information on local pathogens and sensitivity to antimicrobial agents, and topical agents like acetic acid is crucial for successful treatment of wounds.

Objectives: To determine antimicrobial susceptibility pattern of bacterial isolates from wound infection and their sensitivity to alternative topical agents at Jimma University Specialized Hospital.

Methods: A cross sectional study was conducted among patients with wound infection visiting Jimma University Specialized Hospital, from May to September 2013. Wound swab was collected using sterile cotton swabs and processed for bacterial isolation and susceptibility testing to antimicrobial agents, acetic acid, hydrogen peroxide and dabkin solution following standard bacteriological techniques. Biochemical tests were done to identify the species of the organisms. Sensitivity testing was done using Kirby- Baur disk diffusion method. Minimum inhibitory and bactericidal concentration was done using tube dilution method.

Results: In this study 145 bacterial isolates were recovered from 150 specimens showing an isolation rate of 87.3%. The predominant bacteria isolated from the infected wounds were Staphylococcus aureus 47 (32.4%) followed by Escherichia coli 29 (20%), Proteus species 23 (16%), Coagulase negative Staphylococci 21 (14.5%), Klebsiella pneumoniae 14 (10%) and Pseudomonas aeruginosa 11 (8%). All isolates showed high frequency of resistance to ampicillin, penicillin, cephalothin and tetracycline. The overall multiple drug resistance patterns were found to be 85%. Acetic acid (0.5%), Dabkin solution (1%) and 3% hydrogen peroxide were bactericidal to all isolated bacteria and lethal effect observed when applied for 10 minutes.

Conclusions: On in vitro sensitivity testing, ampicillin, penicillin, cephalothin and tetracycline were the least effective. Gentamicin, norfloxacin, ciprofloxacin, vancomycin and amikacin were the most effective antibiotics. Acetic acid (0.5%), dabkin solution (1%) and H2O2 (3%) were bactericidal to all isolates.

Show MeSH
Related in: MedlinePlus