scholarly journals 1257. Re-Evaluation of Cefepime or Piperacillin-Tazobactam to Decrease Use of Carbapenems in ESBL-Producing Enterobacterales Urinary Tract Infections (REDUCE-UTI)

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S717-S718
Author(s):  
Alexander C Branton ◽  
Catherine H Vu ◽  
Venugopalan Veena ◽  
Barbara A Santevecchi ◽  
Reuben Ramphal ◽  
...  

Abstract Background Carbapenems (CBP) are considered first-line for infections caused by extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-E). However, recent literature suggests that cefepime (FEP) and piperacillin-tazobactam (TZP) may produce similar outcomes vs. CBPs for the treatment of ESBL-E urinary tract infections (UTIs). The goal of this study was to determine if non-carbapenem (NCBP) therapy with FEP or TZP is as effective as CBPs for the treatment of ESBL-E UTIs. Methods This was a retrospective observational study of patients admitted to the hospital from January 1st, 2016 to June 30th, 2020 with a urine culture positive for ESBL-E. Patients were included if they received a study antibiotic (meropenem, ertapenem, TZP, or FEP). Patients were excluded if they had any of the following: absence of pyuria, prior receipt of study antibiotic, CBP-resistant organism isolated in urine culture, polymicrobial urine culture, end-stage renal disease, or concomitant gram-negative infection. The primary outcome was clinical cure defined as complete resolution of signs and symptoms of infection. Secondary outcomes included in-hospital mortality, recurrence within 30 days, and resistance within 30 days. Results A total of 133 patients were included based on definitive therapy received; 69 (52%) received CBP and 64 (48%) received NCBP therapy. Of the total patient population, 17 (13%) were admitted to the intensive care unit, 84 (63%) had a complicated UTI, and 64 (48%) had pyelonephritis. Baseline characteristics were similar between the two groups. There was no difference in clinical cure between the CBP and NCBP therapy groups (96% vs. 97%, p = 1.0). Additionally, no differences in secondary outcomes were observed. Subgroup analyses were performed in patients with specific pathogens, uncontrolled genitourinary source, complicated UTI, and pyelonephritis. These analyses did not reveal any differences in primary or secondary outcomes between the two groups. Conclusion FEP and TZP may be reasonable CBP-sparing alternatives for the treatment of ESBL-E UTIs as clinical and microbiological outcomes were similar with these NCBP agents vs. CBPs in this study population. Disclosures Venugopalan Veena, PharmD, Melinta (Other Financial or Material Support, Received a stipend for participation in a drug registry)Merck (Other Financial or Material Support, Received a stipend for participation in a drug registry)

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Stephan Saad ◽  
Neil Mina ◽  
Colin Lee ◽  
Kevin Afra

Abstract Background Literature is scarce regarding oral step down to beta-lactams in bacteremic urinary tract infections. Oral fluoroquinolones are an accepted and common step down for bacteremic urinary tract infections; however, their use is associated with mounting safety concerns. We compared clinical cure in patients with E. coli bacteremic urinary tract infections who were stepped down to oral beta-lactams compared to oral fluoroquinolones. Methods This multicentre retrospective cohort study included patients with first positive concurrent urine and blood cultures from January 2016 to December 2016. Patients were included if they received empiric intravenous beta-lactam therapy with step down to either oral beta-lactam or fluoroquinolone for treatment completion. The primary outcome was clinical cure. Secondary outcomes were length of hospitalization, all-cause mortality and C. difficile infection. Multivariate analysis and propensity score were used to control for confounding. Results A total of 207 patients were identified with bacteremic E.coli urinary tract infections. Clinical cure was achieved in 72/77 (94%) in the oral beta-lactam group versus 127/130 (98%) in the oral fluoroquinolone group (absolute difference − 4.2, 95% confidence interval [CI] -10.3 to 1.9%, p = 0.13). The adjusted odds ratio (OR) for clinical cure with oral beta-lactams was 0.31 (95% CI 0.05–1.90, p = 0.21); propensity score adjusted analysis showed a similar result. There was no statistically significant difference in secondary outcomes. Conclusions Oral beta-lactams appear to be a safe and effective step down option in bacteremic E. coli urinary tract infections compared to oral fluoroquinolones.


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S778-S778
Author(s):  
Fatima Adhi ◽  
Yanina Dubrovskaya ◽  
Samuel Cytryn

Abstract Background Trimethoprim/Sulfamethoxazole (TMP/SMX) is not routinely employed for urinary tract infections (UTI) with multi-drug-resistant organisms (MDRO) due to paucity of effectiveness data, concerns regarding inadequate urinary penetration, and risk of adverse effects. We describe our experience with TMP/SMX as definitive therapy for MDRO Enterobacteriaceae (MDRO-E). Methods We carried out a retrospective review of patients hospitalized at a tertiary care center and treated with TMP/SMX as definitive therapy for UTI with MDRO-E (as defined by resistance to third-generation cephalosporins in culture). We evaluated rates of overall cure rate (CR), adverse events (AE), recurrence (RC) and reinfection (RI). Repeat growth of same or different pathogen in urine culture (UC) within 30 days of completion of treatment was defined as RC or RI, respectively. Results 92 patients had 101 episodes of MDRO-E UTIs treated with TMP/SMX as initial (n = 26, 25.7%) or as step-down therapy (n = 23, 77%) after broad-spectrum empiric antimicrobials (ceftriaxone n = 22, cefepime n = 21, piperacillin/tazobactam n = 12, carbapenems n = 6, ciprofloxacin n = 3). 63 (68.5%) patients were 65 years or older. MDRO-E in 10 (9.9%) episodes were also resistant to carbapenems. Empiric therapy was appropriate in 56 (55.5%) episodes. Median duration of treatment was 8.5 (range 3–24) days for all antimicrobials and 7 (range 2–15) days for TMP-/SMX. Overall CR was 100%. RC/RI was seen in 23/101 (22.8%) episodes (RC n = 9; RI n = 14); UC data were available for 20 of which 8/20 (40%) had a TMP/SMX-resistant organism. 4 (3.9%) patients required readmission for a RC/RI UTI. In terms of AEs: 10 (9.9%) episodes of hyperkalemia (median maximum potassium level 4.5 mmol/L, range 2.7–6.4), 3 (2.9%) episodes of acute kidney injury, 5 episodes of Clostridium difficile infection, and 4 (3.9%) readmissions for a RC/RI UTI within 90 days. Conclusion Our findings suggest that TMP/SMX can be safe and effective as definitive therapy for ESBL-E UTI. The major AE are hyperkalemia and AKI, the incidence of which is high when TMP/SMX is used in combination with ACEI/ARBs. No clinical factors were found to be predictive of recurrence of reinfection. Disclosures All authors: No reported disclosures.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S828-S829
Author(s):  
Stephan Saad ◽  
Neil Mina ◽  
Colin Lee ◽  
Kevin Afra

Abstract Background Literature is scarce regarding oral step down to beta-lactams in bacteremic urinary tract infections. Oral fluoroquinolones are an accepted and common step down for bacteremic urinary tract infections; however, their use is associated with mounting safety concerns. We compared clinical cure in patients with E. coli bacteremic urinary tract infections who were stepped down to oral beta-lactams compared to oral fluoroquinolones. Methods This multicentre retrospective cohort study included patients with first positive concurrent urine and blood cultures from January 2016 to December 2016. Patients were included if they received empiric intravenous beta-lactam therapy with step down to either oral beta-lactam or fluoroquinolone for treatment completion. The primary outcome was clinical cure. Secondary outcomes were length of hospitalization, all-cause mortality and C. difficile infection. Multivariate analysis and propensity score were used to control for confounding. Results A total of 207 patients were identified with bacteremic E.coli urinary tract infections. Clinical cure was achieved in 72/77 (94%) in the oral beta-lactam group versus 127/130 (98%) in the oral fluoroquinolone group (absolute difference -4.2%, 95% confidence interval [CI] -10.3% to 1.9%, p=0.13). The adjusted odds ratio (OR) for clinical cure with oral beta-lactams was 0.31 (95% CI 0.05 – 1.90, p=0.21); propensity score adjusted analysis showed a similar result. There was no statistically significant difference in secondary outcomes. Table 2 Table 3 Table 4 Conclusion Oral beta-lactams appear to be a safe and effective step down option in bacteremic E. coli urinary tract infections compared to oral fluoroquinolones. Disclosures All Authors: No reported disclosures


2020 ◽  
Author(s):  
Stephan Saad ◽  
Neil Mina ◽  
Colin Lee ◽  
Kevin Afra

Abstract Background. Literature is scarce regarding oral step down to beta-lactams in bacteremic urinary tract infections. Oral fluoroquinolones are an accepted and common step down for bacteremic urinary tract infections; however, their use is associated with mounting safety concerns. We compared clinical cure in patients with E. coli bacteremic urinary tract infections who were stepped down to oral beta-lactams compared to oral fluoroquinolones.Methods. This multicentre retrospective cohort study included patients with first positive concurrent urine and blood cultures from January 2016 to December 2016. Patients were included if they received empiric intravenous beta-lactam therapy with step down to either oral beta-lactam or fluoroquinolone for treatment completion. The primary outcome was clinical cure. Secondary outcomes were length of hospitalization, all-cause mortality and C. difficile infection. Multivariate analysis and propensity score were used to control for confounding.Results. A total of 207 patients were identified with bacteremic E.coli urinary tract infections. Clinical cure was achieved in 72/77 (94%) in the oral beta-lactam group versus 127/130 (98%) in the oral fluoroquinolone group (absolute difference -4.2%, 95% confidence interval [CI] -10.3% to 1.9%, p=0.13). The adjusted odds ratio (OR) for clinical cure with oral beta-lactams was 0.31 (95% CI 0.05 – 1.90, p=0.21); propensity score adjusted analysis showed a similar result. There was no statistically significant difference in secondary outcomes.Conclusions. Oral beta-lactams appear to be a safe and effective step down option in bacteremic E. coli urinary tract infections compared to oral fluoroquinolones.


2020 ◽  
Author(s):  
Stephan Saad ◽  
Neil Mina ◽  
Colin Lee ◽  
Kevin Afra

Abstract Background: Literature is scarce regarding oral step down to beta-lactams in bacteremic urinary tract infections. Oral fluoroquinolones are an accepted and common step down for bacteremic urinary tract infections; however, their use is associated with mounting safety concerns. We compared clinical cure in patients with E. coli bacteremic urinary tract infections who were stepped down to oral beta-lactams compared to oral fluoroquinolones.Methods: This multicentre retrospective cohort study included patients with first positive concurrent urine and blood cultures from January 2016 to December 2016. Patients were included if they received empiric intravenous beta-lactam therapy with step down to either oral beta-lactam or fluoroquinolone for treatment completion. The primary outcome was clinical cure. Secondary outcomes were length of hospitalization, all-cause mortality and C. difficile infection. Multivariate analysis and propensity score were used to control for confounding.Results: A total of 207 patients were identified with bacteremic E.coli urinary tract infections. Clinical cure was achieved in 72/77 (94%) in the oral beta-lactam group versus 127/130 (98%) in the oral fluoroquinolone group (absolute difference − 4.2%, 95% confidence interval [CI] -10.3–1.9%, p = 0.13). The adjusted odds ratio (OR) for clinical cure with oral beta-lactams was 0.31 (95% CI 0.05–1.90, p = 0.21); propensity score adjusted analysis showed a similar result. There was no statistically significant difference in secondary outcomes.Conclusions: Oral beta-lactams appear to be a safe and effective step down option in bacteremic E. coli urinary tract infections compared to oral fluoroquinolones.


2018 ◽  
pp. 100-108
Author(s):  
Dinh Khanh Le ◽  
Dinh Dam Le ◽  
Khoa Hung Nguyen ◽  
Xuan My Nguyen ◽  
Minh Nhat Vo ◽  
...  

Objectives: To investigate clinical characteristics, bacterial characteristics, drug resistance status in patients with urinary tract infections treated at Department of Urology, Hue University Hospital. Materials and Method: The study was conducted in 474 patients with urological disease treated at Department of Urology, Hue Universiry Hospital from July 2017 to April 2018. Urine culture was done in the patients with urine > 25 Leu/ul who have symptoms of urinary tract disease or infection symptoms. Patients with positive urine cultures were analyzed for clinical and bacterial characteristics. Results: 187/474 (39.5%) patients had symptoms associated with urinary tract infections. 85/474 (17.9%) patients were diagnosed with urinary tract infection. The positive urine culture rate was 45.5%. Symptoms of UTI were varied, and no prominent symptoms. E. coli accounts for the highest proportion (46.67%), followed by, Staphycoccus aureus (10.67%), Pseudomonas aeruginsa (8,0%), Streptococcus faecali and Proteus (2.67%). ESBL - producing E. coli was 69.23%, ESBL producing Enterobacter spp was 33.33%. Gram-negative bacteria are susceptible to meropenem, imipenem, amikacin while gram positive are vancomycin-sensitive. Conclusions: Clinical manifestations of urinary tract infections varied and its typical symptoms are unclear. E.coli is a common bacterium (46.67%). Isolated bacteria have a high rate of resistance to some common antibiotics especially the third generation cephalosporins and quinolones. Most bacteria are resistant to multiple antibiotics at the same time. Gram (+) bacteria are susceptible to vancomycin, and gram (-) bacteria are susceptible to cefoxitin, amikacin, and carbapenem. Key words: urinary tract infection


PEDIATRICS ◽  
1990 ◽  
Vol 86 (3) ◽  
pp. 363-367 ◽  
Author(s):  
Ellen F. Crain ◽  
Jeffrey C. Gershel

In this prospective study of 442 infants younger than 8 weeks of age who attended a pediatric emergency department with temperature ≥100.6°F (38.1° C), urinary tract infections (UTIs) were found in 33 patients (7.5%), 2 of whom were bacteremic. Clinical and laboratory data were not helpful for identifying UTIs. Of the 33 patients with UTIs, 32 had urinalyses recorded; 16 were suggestive of a UTI (more than five white blood cells per high-power field or any bacteria present). Of the 16 infants with apparently normal urinalysis results, three had an emergency department diagnosis suggesting an alternative bacterial focus of infection. If the physician had decided on the basis of apparently normal urinalysis results to forgo obtaining a urine culture, more than half of the UTIs would have been missed. Bag-collected specimens were significantly more likely to yield indeterminate urine culture results than either catheter or suprapublic specimens. In addition, uncircumcised males were significantly more likely to have a UTI than circumcised boys. These results suggest that a suprapubic or catheter-obtained urine specimen for culture is a necessary part of the evaluation of all febrile infants younger than 8 weeks of age, regardless of the urinalysis findings or another focus of presumed bacterial infection.


2018 ◽  
Vol 39 (12) ◽  
pp. 1494-1496 ◽  
Author(s):  
Ana Cecilia Bardossy ◽  
Takiah Williams ◽  
Karen Jones ◽  
Susan Szpunar ◽  
Marcus Zervos ◽  
...  

AbstractWe compared interventions to improve urinary catheter care and urine culturing in adult intensive care units of 2 teaching hospitals. Compared to hospital A, hospital B had lower catheter utilization, more compliance with appropriate indications and maintenance, but higher urine culture use and more positive urine cultures per 1,000 patient days.


2021 ◽  
Vol 8 (10) ◽  
pp. 522-526
Author(s):  
Bhavani Shankar Rokkam ◽  
Chowdary Babu Menni ◽  
Ramu Pedada ◽  
Deepak Kumar Alikana

BACKGROUND Urinary tract infections (UTI) constitute a common cause of morbidity in infants and children. When associated with abnormalities of urinary tract, they may lead to long-term complications including renal scarring, loss of function and hypertension. Most urinary tract infections remain undiagnosed if investigations are not routinely performed to detect them. Prompt detection and treatment of urinary tract infections and any complicating factors are important. The objective of the study is to know the clinical, epidemiological and bacteriological profile (i.e. clinical signs and symptoms, age, sex, family history, associated urinary tract abnormalities, & causative organisms) of urinary tract infections in febrile children with culture positive urinary tract infection. METHODS This descriptive, cross sectional observational study was conducted at outpatient clinics of our “child health clinics” between May 2016 and April 2017 (one year). All children aged 0 to 12 years with culture positive urinary tract infections were included in this study to evaluate the clinical, epidemiological and bacteriological profile. RESULTS A total of 69 children with culture positive urinary tract infections were included in this study. Out of 69 children included in this study, 36 (52.2 %) were females and 33 (47.8 %) were males. Overall female preponderance was seen and the M: F ratio was 0.9:1. But during first year of life in our study group we had more boys (10, 14.49 %) affected with urinary tract infection than girls. 49.3 % of urinary tract infections in the present study belonged to lower socio-economic status. Most common organism causing urinary tract infection in our group was E. coli (56.5 %). Fever (100 %), anorexia or refusal of feeds (52.2 %), dysuria (46.4 %), vomiting (46.4 %) and abdominal pain (39.1 %) were the predominant clinical manifestations observed in our study. CONCLUSIONS Urinary tract infection is a common medical problem in children and it should be considered as a potential cause of fever in children. As febrile children with urinary tract infection usually present with non-specific signs and symptoms, urine culture should be considered as a part of diagnostic evaluation. KEYWORDS Urinary Tract Infections (UTI), Febrile Children, Bacteriological Profile, Urine Culture


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