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Bacterial etiology and antibiotic susceptibility pattern of diabetic foot infections in Tabriz, Iran.

ABSTRACT: AIM: The aim of this study was to investigate anaerobic and aerobic bacteria profile and determination of antibiotic susceptibility pattern in aerobic bacteria. METHOD: Specimens were cultured using optimal aerobic and anaerobic microbiological techniques. Identification of bacterial isolates was performed by standard microbiological methods and antibiotic susceptibility testing was performed according to the guidelines of Clinical and Laboratory Standards Institute (CLSI). RESULT: 92 bacterial strains were isolated from 60 samples of diabetic foot ulcers. Predominant aerobic bacteria isolated from these infections were S. aureus (28%) followed by Enterobacteriaceae family (24%) including Escherichia coli (15%), Citrobacter spp. (4%), Enterobacter spp. (4%), and coagulase-negative Staphylococcus spp. (17%), Enterococcus spp. (15%), Pseudomonas aeruginosa (7%) and Acinetobacter spp. (4%). No Clostridium spp. were isolated and 4% Bacteroides fragilis obtained from anaerobic culture. All Gram-positive isolates were susceptible to linezolid while all Enterobacteriaceae showed sensitivity to imipenem. CONCLUSION: Most of DFIs specimens were poly microbial infection and predominant bacteria were S. aureus and B. fragilis. These wounds may require use of combined antimicrobial therapy for initial management.

SUBMITTER: Akhi MT

PROVIDER: S-EPMC4332275 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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Bacterial etiology and antibiotic susceptibility pattern of diabetic foot infections in Tabriz, Iran.

Akhi Mohammad Taghi MT Ghotaslou Reza R Asgharzadeh Mohammad M Varshochi Mojtaba M Pirzadeh Tahereh T Memar Mohammad Yousef MY Zahedi Bialvaei Abed A Seifi Yarijan Sofla Hasan H Alizadeh Naser N

GMS hygiene and infection control 20150202

<h4>Aim</h4>The aim of this study was to investigate anaerobic and aerobic bacteria profile and determination of antibiotic susceptibility pattern in aerobic bacteria.<h4>Method</h4>Specimens were cultured using optimal aerobic and anaerobic microbiological techniques. Identification of bacterial isolates was performed by standard microbiological methods and antibiotic susceptibility testing was performed according to the guidelines of Clinical and Laboratory Standards Institute (CLSI).<h4>Resul ...[more]

PMID: 25699225

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Project description:ObjectiveTo investigate the microbial spectrum isolated from foot ulcers among diabetic patients in China, which was conducted to help clinicians choose optimal antibiotics empirically.MethodThe PubMed, MEDLINE, Web of Science, China Biology Medicine (CBM), China National Knowledge Infrastructure (CNKI), WanFang, and VIP databases were searched for studies published between 2015 to 2019, that report primary data on diabetic foot infection (DFI) and antibiotic susceptibility in China.ResultA total of 63 articles about DFI and antibiotic susceptibility tests among diabetic patients in China were included. There were 11,483 patients with an average age of 60.2 ± 10.1 years and a mean course of 10.6 ± 5.0 years between 2010 and 2019, covering most geographical regions of China. The prevalence of Gram-positive (GP) bacteria (43.4%) was lower than that of Gram-negative (GN) (52.4%). The most prevalent pathogens isolated were Staphylococcus aureus (17.7%), Escherichia coli (10.9%), Pseudomonas aeruginosa (10.5%), Klebsiella pneumoniae (6.2%), Staphylococcus epidermidis (5.3%), Enterococcus faecalis (4.9%), and fungus (3.7%). The prevalence of polymicrobial infection was 22.8%. GP bacteria were sensitive to linezolid, vancomycin, and teicoplanin. More than 50% of GN bacteria were resistant to third-generation cephalosporins, while the resistance rates of piperacillin/tazobactam, amikacin, meropenem, and imipenem were relatively low. Among the 6017 strains of the isolated organisms, 20% had multi-drug resistance (MDR). Staphylococcus aureus (30.4%) was the most predominant MDR bacteria, followed by extended-spectrum β-lactamase (ESBL) (19.1%).ConclusionThe microbial infection of foot ulcers among diabetic patients in China is diverse. The microbial spectrum is different in different geographic regions and Staphylococcus aureus is the predominant bacteria. Polymicrobial and MDR bacterial infections on the foot ulcers are common. This study could be valuable in guiding the empirical use of antibiotics for diabetic foot infections.

Project description:BackgroundUrinary tract infections (UTIs) are common pediatric infections and contribute to high morbidity and mortality. At present, the antimicrobial resistance emergency has quadrupled worldwide and poses a serious threat to the treatment of patients. However, there have been few studies on UTIs in children in Ethiopia, particularly in the east.ObjectiveThis study aimed to assess the bacterial profile of urinary tract infections, their susceptibility to antimicrobial agents, and associated factors in under-five children at Hiwot Fana Specialized University Hospital, eastern Ethiopia.MethodWe conducted hospital-based quantitative study on 332 consecutively selected under-five children from March 20 to June 10, 2021. Parents and guardians were interviewed to collect data using a structured questionnaire. Random urine samples were collected aseptically, and standard microbiological techniques were used to identify the bacteria and test for susceptibility to various antibiotics. Data were entered into Epi Info version 7 and exported to Statistical Package for the Social Sciences (SPSS) version 25 for analysis. Data were analyzed using descriptive analysis, bivariate, and multivariable logistic regression analysis. The crude odds ratio (COR) and adjusted odds ratio (AOR) with their respective 95% confidence intervals (CI) were used to determine the significance of the predictors. A p-value at a 95% confidence interval of less than 0.05 was considered statistically significant.ResultsThe overall prevalence of bacterial urinary tract infections was 80 (24.1%) 95% CI:19.40-29.00%). Most of the bacterial isolates 55 (68.75%) were gram-negative bacteria, predominantly E. coli 23 (28.75%) and K. pneumoniae 10 (12.50%). Being a rural resident (AOR: 4.10, 95%CI: 1.45 11.54), uncircumcised male (AOR: 3.52, 95%CI: 1.33, 9.39), previous history of antibiotic usage (AOR: 7.32, 95%CI: 2.11, 25.37), indwelling catheterization (AOR: 10.35, 95%CI: 3.74, 28.63), previous history of urinary tract infections (AOR: 5.64, 95% CI: 1.36, 23.38), and urinary frequency (AOR: 5.56, 95%CI: 2.03, 15.25) had higher odds of culture positive result. The majority of the isolates have shown high levels of antibiotic resistance. Meropenem, ciprofloxacin, and amoxicillin-clavulanic acid were effective against gram-negative uropathogens, whereas rifampin and ciprofloxacin were the most sensitive drugs for gram-positive isolates. From the tested bacterial isolates, 53/86 (61.6%), 11/86 (11.6%), and 2/86 (2.3%) were found to have multidrug resistance (MDR), extreme drug resistance (XDR), and pan drug resistance (PDR), respectively.ConclusionsAbout one-fourth of the children were culture-positive for many types of bacterial uropathogens; this is higher compared with most of the previous studies in Africa. Rural dwellers, uncircumcised males, indwelling catheterization, a history of antibiotic use and urinary tract infection, and frequent urination all had a higher risk of bacterial infections. Many isolates were resistant to multiple drugs, primarily beta-lactams. Urinary tract infections as well as the growth and spread of resistant bacterial pathogens should be monitor regularly.

Dataset Information

Bacterial etiology and antibiotic susceptibility pattern of diabetic foot infections in Tabriz, Iran.

Publications

Bacterial etiology and antibiotic susceptibility pattern of diabetic foot infections in Tabriz, Iran.

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