Is Cefoxitin a Carbapenem Sparing Agent in the Management of Urinary Tract Infections Caused by ESBL Producing Enterobacterales?

2021 ◽  
pp. 001857872110664
Author(s):  
Wasim S. El Nekidy ◽  
Manal M. Abdelsalam ◽  
Ahmad R. Nusair ◽  
Rania El Lababidi ◽  
Ruba Z. Dajani ◽  
...  

Background: Cefoxitin has shown in vitro activity against Extended-Spectrum β-Lactamase (ESBL) producing Enterobacterales. Outcome data regarding cefoxitin as a carbapenem sparing agent in the management of urinary tract infections (UTI) are scarce. We sought to evaluate the clinical and microbiologic efficacy of cefoxitin as compared to ertapenem. Methods: A retrospective observational study was conducted at our quaternary care institution between May 2015 and March 2019. We identified all patients who received cefoxitin for the treatment of UTI during the study period and used Charlson Comorbidity Index to select a matching cohort from patients who received ertapenem. Primary end points were clinical and microbiological cure. Results: Thirty patients who received cefoxitin were matched with 55 patients who received ertapenem. Clinical cure was marginally in favor of ertapenem: 83.2% in cefoxitin group versus 96.8% in ertapenem group ( P = .042). However, 90-day recurrence was in favor of cefoxitin: 13.5% in cefoxitin group versus 34.8% in ertapenem group ( P = .045). Microbiologic cure was not significant between the 2 groups with 88.6% success in cefoxitin versus 100% in ertapenem. Additionally, the group difference on 30-day recurrence or relapse rates and the 90-day mortality rate were not clinically significant. Conclusion: Cefoxitin achieved similar microbiologic cure rate when compared to ertapenem for the treatment of UTI caused by ESBL-producing Enterobacterales. No significant differences were found in 30-day recurrence/relapse or mortality rates. Larger randomized controlled trials are required to identify the clinical sittings in which cefoxitin could be used as a carbapenem-sparing agent in the treatment of UTI.

Chemotherapy ◽  
2016 ◽  
Vol 62 (2) ◽  
pp. 100-104 ◽  
Author(s):  
Stephanie E. Giancola ◽  
Monica V. Mahoney ◽  
Michael D. Hogan ◽  
Brian R. Raux ◽  
Christopher McCoy ◽  
...  

Background: Bacterial resistance among uropathogens is on the rise and has led to a decreased effectiveness of oral therapies. Fosfomycin tromethamine (fosfomycin) is indicated for uncomplicated urinary tract infections (UTIs) and displays in vitro activity against multidrug-resistant (MDR) isolates; however, clinical data assessing fosfomycin for the treatment of complicated or MDR UTIs are limited. Methods: We conducted a retrospective evaluation of patients who received ≥1 dose of fosfomycin between January 2009 and September 2015 for treatment of a UTI. Patients were included if they had a positive urine culture and documented signs/symptoms of a UTI. Results: Fifty-seven patients were included; 44 (77.2%) had complicated UTIs, 36 (63.2%) had MDR UTIs, and a total of 23 (40.4%) patients had a UTI that was both complicated and MDR. The majority of patients were female (66.7%) and elderly (median age, 79 years). Overall, the most common pathogens isolated were Escherichia coli (n = 28), Enterococcus spp. (n = 22), and Pseudomonas aeruginosa (n = 8). Twenty-eight patients (49.1%) were clinically evaluable; the preponderance achieved clinical success (96.4%). Fifteen out of 20 (75%) patients with repeat urine cultures had a microbiological cure. Conclusions: This retrospective study adds to the limited literature exploring alternative therapies for complicated and MDR UTIs with results providing additional evidence that fosfomycin may be an effective oral option.


2012 ◽  
Vol 56 (11) ◽  
pp. 5744-5748 ◽  
Author(s):  
Elizabeth A. Neuner ◽  
Jennifer Sekeres ◽  
Gerri S. Hall ◽  
David van Duin

ABSTRACTFosfomycin has shown promisingin vitroactivity against multidrug-resistant (MDR) urinary pathogens; however, clinical data are lacking. We conducted a retrospective chart review to describe the microbiological and clinical outcomes of urinary tract infections (UTIs) with MDR pathogens treated with fosfomycin tromethamine. Charts for 41 hospitalized patients with a urine culture for an MDR pathogen who received fosfomycin tromethamine from 2006 to 2010 were reviewed. Forty-one patients had 44 urinary pathogens, including 13 carbapenem-resistantKlebsiella pneumoniae(CR-Kp), 8Pseudomonas aeruginosa, and 7 vancomycin-resistantEnterococcus faecium(VRE) isolates, 7 extended-spectrum beta-lactamase (ESBL) producers, and 9 others.In vitrofosfomycin susceptibility was 86% (median MIC, 16 μg/ml; range, 0.25 to 1,024 μg/ml). Patients received an average of 2.9 fosfomycin doses per treatment course. The overall microbiological cure was 59%; failure was due to either relapse (24%) or reinfection UTI (17%). Microbiological cure rates by pathogen were 46% for CR-Kp, 38% forP. aeruginosa, 71% for VRE, 57% for ESBL producers, and 100% for others. Microbiological cure (n= 24) was compared to microbiological failure (n= 17). There were significantly more solid organ transplant recipients in the microbiological failure group (59% versus 21%;P= 0.02). None of the patients in the microbiological cure group had a ureteral stent, compared to 24% of patients within the microbiological failure group (P= 0.02). Fosfomycin demonstratedin vitroactivity against UTIs due to MDR pathogens. For CR-KP, there was a divergence betweenin vitrosusceptibility (92%) and microbiological cure (46%). Multiple confounding factors may have contributed to microbiological failures, and further data regarding the use of fosfomycin for UTIs due to MDR pathogens are needed.


2019 ◽  
Vol 6 ◽  
pp. 204993611985888 ◽  
Author(s):  
Luka Bielen ◽  
Robert Likic

Background: The aim of this study was to evaluate the efficacy of fosfomycin in the treatment of complicated urinary tract infections (cUTIs) caused by extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae. Methods: We retrospectively evaluated 42 ambulatory patients with cUTIs caused by ESBL-producing Enterobacteriaceae at the Outpatient Internal Medicine Clinic of the University Clinical Hospital Centre Zagreb in the period from June 2012 to June 2014. ESBL production was confirmed by double disk synergy test according to Jarlier. In vitro susceptibility to fosfomycin of ESBL-producing Escherichia coli, Klebsiella pneumoniae and Citrobacter freundii isolates was tested according to the European Committee on Antimicrobial Susceptibility Testing methodology. Results: In 42 patients with cUTIs, 43 urinary pathogens susceptible to fosfomycin were isolated in the urine cultures, including 34 E. coli ESBL, seven K. pneumoniae ESBL and two C. freundii ESBL isolates. On average, patients had 2.2 complicating factors (CFs) and received 3.6 fosfomycin doses per treatment course. The overall microbiological cure was 50%, clinical cure was 71% and ESBL eradication rate was 74%. Patients with between zero and one CFs received significantly fewer fosfomycin doses than patients with two or more CFs ( p = 0.022). Three kidney transplant patients achieved microbiological cure following prolonged fosfomycin administration. No statistically significant correlation was found between the presence of individual CFs and treatment outcome. Conclusions: Fosfomycin may be a valid option for oral treatment of cUTIs caused by ESBL-producing pathogens. The optimal duration of fosfomycin treatment for cUTIs remains to be determined.


Antibiotics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 825
Author(s):  
Henrique Pinto ◽  
Manuel Simões ◽  
Anabela Borges

This study sought to assess the prevalence and impact of biofilms on two commonly biofilm-related infections, bloodstream and urinary tract infections (BSI and UTI). Separated systematic reviews and meta-analyses of observational studies were carried out in PubMed and Web of Sciences databases from January 2005 to May 2020, following PRISMA protocols. Studies were selected according to specific and defined inclusion/exclusion criteria. The obtained outcomes were grouped into biofilm production (BFP) prevalence, BFP in resistant vs. susceptible strains, persistent vs. non-persistent BSI, survivor vs. non-survivor patients with BSI, and catheter-associated UTI (CAUTI) vs. non-CAUTI. Single-arm and two-arm analyses were conducted for data analysis. In vitro BFP in BSI was highly related to resistant strains (odds ratio-OR: 2.68; 95% confidence intervals-CI: 1.60–4.47; p < 0.01), especially for methicillin-resistant Staphylococci. BFP was also highly linked to BSI persistence (OR: 2.65; 95% CI: 1.28–5.48; p < 0.01) and even to mortality (OR: 2.05; 95% CI: 1.53–2.74; p < 0.01). Candida spp. was the microorganism group where the highest associations were observed. Biofilms seem to impact Candida BSI independently from clinical differences, including treatment interventions. Regarding UTI, multi-drug resistant and extended-spectrum β-lactamase-producing strains of Escherichia coli, were linked to a great BFP prevalence (OR: 2.92; 95% CI: 1.30–6.54; p < 0.01 and OR: 2.80; 95% CI: 1.33–5.86; p < 0.01). More in vitro BFP was shown in CAUTI compared to non-CAUTI, but with less statistical confidence (OR: 2.61; 95% CI: 0.67–10.17; p < 0.17). This study highlights that biofilms must be recognized as a BSI and UTI resistance factor as well as a BSI virulence factor.


2021 ◽  
Vol 11 (9) ◽  
pp. 4315
Author(s):  
Emanuel Vamanu ◽  
Laura Dorina Dinu ◽  
Cristina Mihaela Luntraru ◽  
Alexandru Suciu

Bioactive compounds and phenolic compounds are viable alternatives to antibiotics in recurrent urinary tract infections. This study aimed to use a natural functional product, based on the bioactive compounds’ composition, to inhibit the uropathogenic strains of Escherichia coli. E. coli ATCC 25922 was used to characterize the IVCM (new in vitro catheterization model). As support for reducing bacterial proliferation, the cytotoxicity against a strain of Candida albicans was also determined (over 75% at 1 mg/mL). The results were correlated with the analysis of the distribution of biologically active compounds (trans-ferulic acid-268.44 ± 0.001 mg/100 g extract and an equal quantity of Trans-p-coumaric acid and rosmarinic acid). A pronounced inhibitory effect against the uropathogenic strain E. coli 317 (4 log copy no./mL after 72 h) was determined. The results showed a targeted response to the product for tested bacterial strains. The importance of research resulted from the easy and fast characterization of the functional product with antimicrobial effect against uropathogenic strains of E. coli. This study demonstrated that the proposed in vitro model was a valuable tool for assessing urinary tract infections with E. coli.


Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 591 ◽  
Author(s):  
Annalisa Noce ◽  
Francesca Di Daniele ◽  
Margherita Campo ◽  
Manuela Di Lauro ◽  
Anna Pietroboni Zaitseva ◽  
...  

Urinary tract infections (UTIs) are caused by uropathogenic microorganism colonization. UTIs often require an antibiotic therapy that can cause the selection of antibiotic-resistant bacterial strains. A natural bioactive compound may represent a valid therapeutic adjuvant approach, in combination with drug therapy. In this paper, we present a pilot study, based on the administration of an oral food supplement (OFS), containing chestnut tannins and anthocyanins, to nephropathic patients suffering from recurrent UTIs (16 treated patients with 1 cp/day and 10 untreated patients). We performed laboratory tests and quality of life and body composition assessments, at T0 (baseline) and T1 (after 6 weeks OFS assumption). The analysis of OFS was performed by HPLC-DAD-MS for its content in polyphenols and by in vitro tests for its antioxidative and anti-free radical activities. In each capsule, polyphenol content was 6.21 mg (4.57 mg hydrolysable tannins, 0.94 mg anthocyanosides, 0.51 mg proanthocyanidins, 0.18 mg quercetin derivatives). A significant reduction of erythrocyte sedimentation rate was observed only in male patients. Urinalysis showed a significant reduction of leukocytes in both genders, whereas urinary bacterial flora at T1 significantly decreased only in male subjects. Tannins seem to exert an antimicrobial action according to gender, useful to counteract the recurrence of UTIs.


2016 ◽  
Vol 48 (6) ◽  
pp. 949-954 ◽  
Author(s):  
Ye Tian ◽  
Xiang Cai ◽  
Romel Wazir ◽  
Kunjie Wang ◽  
Hong Li

1993 ◽  
Vol 1 (2) ◽  
pp. 108-113 ◽  
Author(s):  
Sebastian Faro

The most commonly sexually transmitted bacteria areNeisseria gonorrhoeaeandChlamydia trachomatis.The quinolones ofloxacin and ciprofloxacin have been shown to have activity against both of these bacteria in vitro and in vivo. Ofloxacin is particularly well suited for the treatment ofN. gonorrhoeaeandC. trachomatiscervical infection, which can be considered the earliest manifestation of pelvic inflammatory disease (PID). Not only can ofloxacin be effectively used as a single agent, it is also useful in treating urinary tract infections caused by Enterobacteriaceae. Although it has moderate activity against anaerobes in general, ofloxacin does have activity against the anaerobes commonly isolated from female patients with soft tissue pelvic infections. Thus, ofloxacin has the potential for being utilized to treat early salpingitis.


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