scholarly journals Clinico-Microbiological Investigation on Fosfomycin and Tigecycline Resistant Gram-Negative Bacilli Isolated from Urinary Tract Infections: A Potential Resurgence

2020 ◽  
Vol 13 (7) ◽  
Author(s):  
Maryam Dastborhan ◽  
Mojtaba Varshochi ◽  
Alka Hasani ◽  
Leila Dehghani ◽  
Elghar Soltani ◽  
...  

Background: Traditional antibiotics are no longer as effective as before for controlling pathogens associated with urinary tract infections (UTI), which shows the necessity of developing new and more effective antibiotics. Objectives: The current study aimed to evaluate in vitro susceptibility of fosfomycin and tigecycline towards common antibiotic-resistant Gram-negative bacilli isolated from the urinary tract. Besides, clinico-microbiological on fosfomycin and tigecycline resistant Gram-negative bacilli was investigated. Methods: In this descriptive cross-sectional study, 150 resistant Gram-negative bacilli were isolated from urine specimens send for culture, and antibiotic susceptibility assessment to the Division of Microbiology of Sina Hospital affiliated to Tabriz University of Medical Sciences which were collected from April-September 2017 are included. Antibiotic susceptibilities were evaluated according to the Clinical and Laboratory Standards published by the Institute and the criteria of the Food and Drug Administration. Results: Of 150 isolates, 138 (92%) were susceptible, and 2 (1.3%) were resistant to both fosfomycin and tigecycline, as confirmed by disk diffusion and Epsilonmeter tests. The difference was statistically significant (P = 0.001). Conclusions: Based on the results, resistance to the conventional antibiotics prescribed for the treatment of UTI was significantly high. Fosfomycin and tigecycline have an appropriate antimicrobial activity towards Gram-negative-resistant isolates involved in UTIs.

2016 ◽  
Vol 19 (4) ◽  
pp. 448 ◽  
Author(s):  
Katie E. Barber ◽  
Jessica K. Ortwine ◽  
Ronda L Akins

Purpose: Gram-negative resistance continues to rise with treatment options becoming more limited. Ceftazidime/avibactam was recently approved in the United States and Europe, which combines an established third-generation cephalosporin with a new, unique, non-β-lactam β-lactamase inhibitor. This review conducts a thorough examination of structure, pharmacology, spectrum of activity, pharmacokinetics/pharmacodynamics, in vitro and clinical efficacy and safety/tolerability of ceftazidime/avibactam, as well as detailed future directions for the agent. Methods: Pubmed and clinicaltrials.gov searches, as well as abstracts from the 2015 Interscience Conference on Antimicrobial Agents and Chemotherapy/International Society of Chemotherapy (ICAAC/ICC) and ID Week meetings and the 2016 American Society of Microbiology Microbe meeting, were conducted from January 2004 – September 2016. Relevant search terms included ceftazidime, ceftazidime/avibactam, avibactam, NXL104 and AVE1330A. The US package insert for ceftazidime/avibactam (02/2015) and European public assessment report (06/2016) were also reviewed. Results: In vitro susceptibility for ceftazidime/avibactam displayed potent activity against many Enterobacteriaceae including extended-spectrum-β-lactamase (ESBL) and carbapenemase-producing strains, as well as Pseudomonas aeruginosa. Phase II clinical trials utilized for approval demonstrated comparable safety and efficacy to imipenem/cilistatin for treatment of complicated urinary tract infections (70.4% vs. 71.4%) and combined with metronidazole compared to meropenem in complicated intra-abdominal infections (91.2% vs 93.4%). Phase III data displayed non-inferior efficacy of ceftazidime/avibactam compared to doripenem for complicated urinary tract infections (70.2% vs 66.2%) and combined with metronidazole compared to meropenem in complicated intra-abdominal infections (82.5% vs 84.9%), as well as comparable safety. Ceftazidime/avibactam was well-tolerated but does require renal adjustments. Additionally, 3 case series and a single case report have demonstrated the potential for ceftazidime/avibactam against multidrug resistant organisms for compassionate use or failure after previous therapy. Conclusion: By adding avibactam to ceftazidime, clinicians’ antimicrobial armamentarium is expanded, potentially increasing the ability to combat multi-drug resistant gram-negative pathogens, particularly ESBL and carbapenemase-producing organisms, as well as Pseudomonas aeruginosa. This article is open to POST-PUBLICATION REVIEW. Registered readers (see “For Readers”) may comment by clicking on ABSTRACT on the issue’s contents page.


2021 ◽  
Author(s):  
◽  
Gerald Turyatunga

Background: A urinary tract infection (UTIs) is a common type of infection caused by bacteria that travel up the urethra to the bladder. Globally, it is reported that 150 million people are diagnosed with a UTI annually, costing the world economy over 6 million US dollars in treatment and work loss. Studies conducted in the in-patients pediatric ward of Muhimbili Hospital in Tanzania and Mulago National Referral Hospital in Uganda between five to ten years reported the prevalence of UTI to be 16.8% and 14.6% respectively. On average at Kam Medical Consult Clinic, patients who turn up in the laboratory are about 20%, and 50% of patients present with recurring UTIs clinically. Therefore,  there is a need to establish and investigate the prevalence of bacterial pathogens associated with UTI and multiple pathogens that are not known. Methodology: The cross-sectional study was carried out at Kam medical consult clinic (KMCC) located in Kafeero zone Mulago II Kawempe division. The study population was adults and children presenting with symptoms of urinary tract infection. 120 Midstream urine Samples were collected from patients presenting clinical signs of UTI. The diagnosis was done through macroscopy dry chemistry, microscopy, and culture. Results Among the sampled population, 33% of males had urinary tract infections while 67% of females had urinary tract infections.  88.5% were outpatients while 11.5 % were in-patients The overall prevalence of UTI among patients was 63.3% with children aged (1-10) having a prevalence of 5.8 %. Conclusion and recommendation: E.coli is an etiological agent causing UTIs in male and female patients presenting UTI at Kam Medical Consult Clinic. Other etiological agents included Klebsiella, Coliform, Enterococcus species, staphylococcus aureus, pseudomonas species, and candida species. There is a need to monitor the profile of etiological bacteria of UTI through culture and sensitivity regularly. 


2017 ◽  
Vol 14 (1) ◽  
Author(s):  
David Pavlicek ◽  
Jörg Krebs ◽  
Simona Capossela ◽  
Alessandro Bertolo ◽  
Britta Engelhardt ◽  
...  

2021 ◽  
Vol 20 (2) ◽  
pp. 128-139
Author(s):  
Ladan Fatahi ◽  
Mohammad Soleymani Zar ◽  

Background and Objectives: Urinary Tract Infection (UTI) is one of the most common infections in the community and hospitalized patients. The aim of the present study was to investigate bacteria isolated from urinary tract infections and their antibiotic resistance in hospitalized patients. Subjects and Methods In the this descriptive-cross-sectional study, the results of about 5,000 urine samples sent for culture from the hospitalized patients of Golestan Hospital in Ahvaz in 2019 were examined. Relevant information was extracted from patients’ medical records. Results Out of 5000 samples studied (39.7% female and 60.3% male), about 468 samples (9.36%) showed positive urine culture. Of the patients with UTI, 205 patients were women (43.8%). The risk of UTI increased with age. The most common bacteria caused urinary tract infections were E. coli with 51.5%, followed by Klebsiella with 29.3%. It was also observed that bacteria isolated from urine samples of people with UTI had antibiotic resistance, and for each bacteria special groups of antibiotics were more effective. Conclusion The prevalence of UTI in the studied patients was 9.36%. In females and with increasing age, the prevalence of UTI was higher. The most common bacteria that caused UTI were E. coli and then Klebsiella. Due to the fact that the resistance and sensitivity of bacteria to antibiotic used, it is recommended that the most common bacterial agents of UTI must be diagnosed and then the most appropriate antibiotic must be prescribed


2020 ◽  
Vol 58 (221) ◽  
Author(s):  
Arun Giri ◽  
Raju Kafle ◽  
Ganesh Kumar` Singh ◽  
Niraj Niraula

Introduction: Urinary tract infection is one of the commonest causes of childhood morbidity. Earlydiagnosis and appropriate choice of antimicrobials is essential. Hence, this study aims to identify theprevalence of Escherichia coli in childhood urinary tract infections. Methods: This was a hospital based descriptive cross-sectional study conducted in Nobel MedicalCollege, Biratnagar over a period of one year. A total of 163 cases aged 1-15 years were included andclinical profile, laboratory reports including bacterial isolates in urine cultures and their sensitivitypatterns were documented. Results: The prevalence of Escherichia coli is 45 (53.57%) C.I. Escherichia coli was the most commonorganism isolated in bacterial cultures followed by Klebsiella 12 (14.29%), Enterococcus 10 (11.90%).Urinary tract infection was common among females with male: female ratio of 1:2.3. Fever 152(93.2%) and abdominal pain 113 (69.3%) were the most common presenting symptoms. Escherichiacoli was found most sensitive to Nitrofurantoin 43 (95.5%) followed by Ciprofloxacin 41 (91.1%) andAmikacin 40 (88.8%). Conclusions: Urinary tract infections in childhood require prompt attention and treatment to preventsignificant morbidity and mortality. From this study it can be concluded that Escherichia coli is oneof the most common isolates in urine culture and Aminoglycosides and Fluoroquinolones can beaccepted as empirical treatment regimens for childhood Urinary tract infections.


Author(s):  
Rama Kawade ◽  
Anjali Radkar ◽  
Abhilash Thadathil ◽  
Deepa Thakur

Background: Poor sanitation facilities are root cause of many health problems of people residing in slums. The present study estimates the prevalence of urinary tract infections (UTI) and identifies factors associated with an increased risk of UTI among women.Methods: A cross-sectional study was conducted among 616 women aged between 18 to 60 years residing in 33 slums across four cities in Maharashtra, India. Data related to individual characteristics of women, housing condition, access to sanitation facilities, behaviors adopted by the women that could lead to UTI and an episode of symptomatic UTI in the previous one month were recorded through structured questionnaire. Logistic regression analysis was performed to find out risk factors for UTI among women.Results: The prevalence of UTI was found to be 19.6%. The prevalence was higher among young women aged upto 30 years (23.2%). In absence of individual toilet, women had adopted certain behaviors such as urine holding (21.3%), modify dinner to avoid toilet use at night (26.6%) and avoid intake of liquids (10.7%) to reduce frequency of visits to toilet. All these behaviors were significantly associated with UTI. Multiple logistic regression indicated that UTI was strongly and independently associated with age (OR=1.64, 95%CI: 1.08, 2.47), no access to bathroom (OR=2.21, 95%CI: 1.08, 4.49) and avoid intake of liquids (OR=2.70, 95%CI: 1.53, 4.75) (p<0.05).Conclusions:Behavior modifications by women to adjust with restricted use of place of urination may affect their health and increase the likelihood of developing UTI. Younger women are more at risk of developing UTI.  


Antibiotics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 181
Author(s):  
Soo Tein Ngoi ◽  
Cindy Shuan Ju Teh ◽  
Chun Wie Chong ◽  
Kartini Abdul Jabar ◽  
Shiang Chiet Tan ◽  
...  

The increasing prevalence of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae has greatly affected the clinical efficacy of β-lactam antibiotics in the management of urinary tract infections (UTIs). The limited treatment options have resulted in the increased use of carbapenem. However, flomoxef could be a potential carbapenem-sparing strategy for UTIs caused by ESBL-producers. Here, we compared the in vitro susceptibility of UTI-associated ESBL-producers to flomoxef and established β-lactam antibiotics. Fifty Escherichia coli and Klebsiella pneumoniae strains isolated from urine samples were subjected to broth microdilution assay, and the presence of ESBL genes was detected by polymerase chain reactions. High rates of resistance to amoxicillin-clavulanate (76–80%), ticarcillin-clavulanate (58–76%), and piperacillin-tazobactam (48–50%) were observed, indicated by high minimum inhibitory concentration (MIC) values (32 µg/mL to 128 µg/mL) for both species. The ESBL genes blaCTX-M and blaTEM were detected in both E. coli (58% and 54%, respectively) and K. pneumoniae (88% and 74%, respectively), whereas blaSHV was found only in K. pneumoniae (94%). Carbapenems remained as the most effective antibiotics against ESBL-producing E. coli and K. pneumoniae associated with UTIs, followed by flomoxef and cephamycins. In conclusion, flomoxef may be a potential alternative to carbapenem for UTIs caused by ESBL-producers in Malaysia.


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