scholarly journals Prevalence of Virulence Genes and Antibiotic Resistance Pattern in Enterococcus Faecalis Isolated from Urinary Tract Infection in Shahrekord, Iran

2021 ◽  
Vol 10 (1) ◽  
pp. 50-59
Author(s):  
Roya Jafarzadeh Samani ◽  
Elahe Tajbakhsh ◽  
Hassan Momtaz ◽  
Mohsen Kabiri Samani ◽  
◽  
...  
Author(s):  
Mohamed Kettani Halabi ◽  
Fatima Azzahra Lahlou ◽  
Idrissa Diawara ◽  
Younes El Adouzi ◽  
Rabiaa Marnaoui ◽  
...  

Extended-spectrum β-lactamases producing Escherichia coli (ESBL-EC) lend resistance to most β-lactam antibiotics. Because of limited treatment options, ESBL-EC infections are generally more difficult to treat, leading to higher hospital costs, reduced rates of microbiological and clinical responses, and a threat to the patient’s life. This study aimed to determine the antibiotic resistance pattern of ESBL-EC isolated from patients with urinary tract infection in Morocco. This retrospective laboratory-based study was conducted at Cheikh Khalifa International University Hospital, Casablanca, from January 2016 to June 2019. A total of 670 urine samples were collected from urinary tract infection patients and processed by standard microbiological methods. In vitro susceptibility testing to different antibiotics of all identified isolates of Escherichia coli (E. coli) was performed following Kirby–Bauer’s disc diffusion method on Mueller–Hinton Agar according to the EUCAST standards. The reviewing of ESBL-EC was confirmed by the appearance of a characteristically shaped zone referred to as a “champagne cork” using the Combined Disk Test. Among a total of 438 E. coli isolated from nonrepetitive urine samples, two hundred fifty-nine (59%) were ESBL-EC, of which 200 (77%) were isolated from adult patients (over the age of 50) and the majority were female. All ESBL-EC isolates were resistant to third-generation cephalosporin and quinolones and sensitive to carbapenem and fosfomycin. Knowledge of antimicrobial resistance patterns in ESBL-EC, the major pathogen associated with urinary tract infection, is indispensable as a guide in choosing empirical antimicrobial treatment.


2021 ◽  
Vol 28 (12) ◽  
pp. 1804-1811
Author(s):  
Salman Azhar ◽  
Talha Munir ◽  
Mian Sajjad Ahmed ◽  
Wasif Baig ◽  
Ahmed Nawaz Baber ◽  
...  

Objective: To determine the emerging antibiotic resistance pattern of adult patients of MDR UTI cases caused by E.Coli. Study Design: Retrospective Data. Setting: Departments of Medicine and Obstetrics & Gynecology, Madinah Teaching Hospital / University Medical and Dental College, Faisalabad. Period: August 2016 to Sep 2018. Material & Methods: This retrospective study included 187 patients meeting the operational definition of multi-drug resistance cases of urinary tract infection caused by E. coli. All cases either male or female of age above 15 years with positive reports of urine culture and sensitivity for E.coli were included in the study. Along with the demographic variables urine WBC’s, results of urine culture and sensitivity were noted. Antibiotic sensitivity pattern of all the E.coli resistant UTI cases was analyzed. After identification of the microbe, antimicrobial sensitivity was accessed using Kirby–Bauer disc diffusion method on the Mueller–Hinton agar. The antimicrobial susceptibility test was performed against E. coli strains by using the following antibiotics: Piperacilin, Amoxicilin-Calvulanic, Pipmedic Acid, Cefipime, Ceftrixone, Cefuroxime, Cefoperazone-sulbactam, Ceftazidime, Cephradine, Ciprofloxacin, Ofloxacin, Levofloxacin, ofloxacin, Nitrofurantoin, Amikacin, Tombramycin, Gentamicin, Linezolid, Doxycycline, Sulphamethoxazole, Imipenem, Meropenem, Aztreonam in order to obtain an antibiogram. Results: In our data, 66.8% (n=125) were MDR UTI, and more than half of these cases were 63.2% (n=79) were females. Among the total 187 cases, 97.3% patients were resistant to most of the beta-lactam antibiotics, 95.7% were resistant to most of the quinolones and 68.4% were resistant to most of the aminoglycosides. Conclusion: This increasing antibiotic resistance is very alarming and steps should be taken to reduce the misuse of antibiotics. Studies should be done to control the risk factors leading to E. coli UTI. By following proper pharmacological guidelines, principles to use antibiotics and manage outpatient cases of UTIs, the incidence of MDR UTI can be controlled.


Author(s):  
Rupa Devi Mallam ◽  
Usha Kiran P.

Background: Urinary tract infection (UTI) is one of the most common diseases caused by bacteria in communities and hospital settings. With the irrational prescription of antibiotics and their misuse leads to constant increase in resistance. This study aims to evaluate the spectrum and antibiotic resistance pattern of uropathogens and to provide a basis for appropriate antimicrobial therapy in patients with UTI.Methods: A retrospective observational study was carried out for a period of 6 months from April 2018 to September 2018 at general hospital Kakinada. Data of 282 positive urine culture reports and their antibiotic susceptibility test results were collected from the records of the Microbiology department and were analyzed and depicted in percentages. Sample processing, identification of organisms, and pattern of antimicrobial sensitivity were carried out as per the Clinical and Laboratory Standards Institute guidelines.Results: Out of 282 positive reports, Escherichia coli was the most common isolated uropathogen with a total of 148 (52.4%) followed by Klebsiella 72 (26%), 20 (7.9%) each of Citrobacter and pseudomonas aeruginosa. E. coli were resistant to nalidixic acid (59.5%), cotrimoxazole (58.1%), ciprofloxacin (54%) amoxyclav (52.7%), ampicilin (45.9%), cefatoxime (37.8%), cefaperazone and salbactum (25.3%). Klebsiella were resistant to amoxyclav (77.7%), cotrimazole (50%), nalidixic acid (41.6%), ampicilin (44.4%), cefatoxime (27.7%), ciprofloxacin (25%). E. coli and Klebsiella were highly susceptible to nitrofurantoin, cefaperazone and salbactum, piperacillin and tazobactum, amikacin, imipenem, gentamicin.Conclusions: The majority of the isolated bacteria were resistant to many antibiotics commonly used in clinical practices. So prior culture reports and institutional antibiograms are necessary for prescribing antibiotics rationally.


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