BACKGROUND/AIMS: The number of urinary tract infections (UTIs) caused by extended-spectrum beta-lactamase-producing Escherichia coli (ESBL-EC) is increasing. In an outpatient setting, there are limited therapeutic options to treat ESBL-producing pathogens. We evaluated the outcomes of amikacin outpatient parenteral antibiotic therapy (OPAT) for UTIs caused by ESBL-EC in patients not pre-treated with carbapenem. METHODS: We retrospectively evaluated the outcomes of amikacin OPAT for UTIs caused by ESBL-EC. RESULTS: From November 2011 to October 2012, eight females, who could not be hospitalized for carbapenem treatment, were treated with amikacin OPAT for nine episodes of non-bacteremic ESBL-EC UTIs. Seven of the eight patients had one or more comorbidities. Of the nine UTI cases, three had symptomatic lower UTIs and six had non-bacteremic upper UTIs. In all of the cases, symptomatic and laboratory improvements were observed following amikacin OPAT. One patient showed a delayed relapse with bilateral microabscesses 3 weeks after treatment cessation; however, a clinical and microbiological cure was eventually reached. All of the patients were able to tolerate amikacin OPAT without any significant nephrotoxicity or ototoxicity. CONCLUSIONS: Amikacin OPAT represents a feasible therapeutic option for non-bacteremic UTIs caused by ESBL-EC in settings with limited resources.
Adult ; Aged ; Aged, 80 and over ; Ambulatory Care ; Amikacin/administration & dosage/adverse effects/*therapeutic use ; Drug Administration Schedule ; Escherichia coli/*drug effects/enzymology/isolation & purification ; Escherichia coli Infections/diagnosis/*drug therapy/microbiology/urine ; Humans ; Microbial Sensitivity Tests ; Middle Aged ; Recurrence ; Remission Induction ; Retrospective Studies ; Time Factors ; Treatment Outcome ; Urinalysis ; Urinary Tract Infections/diagnosis/*drug therapy/microbiology/urine ; Urine/microbiology ; beta-Lactamase Inhibitors/administration & dosage/adverse effects/*therapeutic use ; beta-Lactamases/*metabolism

BACKGROUND/AIMS: Efforts to decrease the use of extended-spectrum cephalosporins are required to prevent the selection and transmission of multi-drug resistant pathogens, such as extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae. The objectives of this study were to assess the clinical efficacy of intravenous cefuroxime as an empirical antibiotic for the treatment of hospitalized women with acute pyelonephritis (APN) caused by Escherichia coli. METHODS: We analyzed the clinical and microbiologic database of 328 hospitalized women with community-onset APN. RESULTS: Of 328 women with APN, 22 patients had cefuroxime-resistant E. coli APN, and 306 patients had cefuroxime-susceptible E. coli APN. The early clinical success rates were significantly higher (p = 0.001) in the cefuroxime-susceptible group (90.8%, 278/306) than in the cefuroxime-resistant group (68.2%, 15/22) at 72 hours. The clinical cure rates at 4 to 14 days after completing antimicrobial therapy were not significantly different in the cefuroxime-resistant or -susceptible groups, with 88.2% (15/17) and 97.8% (223/228; p = 0.078), respectively. The microbiological cure rates were not significantly different and were 90.9% (10/11) and 93.4% (128/137), respectively (p =0.550). The median duration of hospitalization in the cefuroxime-resistant and -susceptible groups was 10 days (interquartile range [IQR], 8 to 13) and 10 days (IQR, 8 to 14), respectively (p =0.319). CONCLUSIONS: Cefuroxime, a second-generation cephalosporin, can be used for the initial empirical therapy of community-onset APN if tailored according to uropathogen identification and susceptibility results, especially in areas where the prevalence rate of ESBL-producing uropathogens is low.
Administration, Intravenous ; Aged ; Anti-Bacterial Agents/administration & dosage/adverse effects/*therapeutic use ; Cefuroxime/administration & dosage/adverse effects/*therapeutic use ; Community-Acquired Infections/diagnosis/*drug therapy/microbiology/urine ; Databases, Factual ; *Drug Resistance, Bacterial ; Escherichia coli/*drug effects/isolation & purification ; Escherichia coli Infections/diagnosis/*drug therapy/microbiology/urine ; Female ; Hospitalization ; Humans ; Microbial Sensitivity Tests ; Middle Aged ; Pyelonephritis/diagnosis/*drug therapy/microbiology/urine ; Remission Induction ; Retrospective Studies ; Time Factors ; Treatment Outcome ; Urinalysis ; Urinary Tract Infections/diagnosis/*drug therapy/microbiology/urine ; Urine/microbiology

OBJECTIVETo evaluate the value of urine sediment analyzer in the screening of clinically suspected urinary tract infection (UTI) in cancer patients.

METHODSThe results of bacterial count of 1 053 midstream urine samples by UF-1000i urine sediment analyzer (UF-1000i urine sediment analyzer, UF-1000i) were compared with the results of bacterial culture. Moreover, the results of distinguishing bacterial species by the bacterial scattergram were compared with the results of bacteria culture. At the same time, the sensitivity, specificity, positive predictive value and negative predictive value of UF-1000i analyzer for UTI screening were evaluated.

RESULTSOf all the 1 053 samples, the top three bacteria were E. coli, Enterococci and P. aeruginosa. The top three malignant tumors of UTI were bladder, lung cancer and cervical cancers. The positive rate of UF-1000i analyzer was 20% (211/1 053), and that of bacteria culture was 17.9% (188/1 053). There was statistically no significant difference in the positive rates between the two methods (χ(2)=1.636, P>0.05), and the two methods had a considerable consistency (Kappa=0.756). Compared with the clinical diagnosis, UTI screening by UF-1000i analyzer showed a sensitivity of 79.6% (160/201), specificity of 95.5% (814/852), positive predictive value of 80.8% (160/198) and negative predictive value of 95.2%(814/855). The distribution of cocci and bacilli acquired by the bacterial scattergram was basically in accordance with the results of bacterial culture.

CONCLUSIONSBacterial count by UF-1000i analyzer plays an important role in early screening of UTI, and the bacterial scattergram may help to distinguish bacterial species, providing reference for the use of antibiotics in early medication.

Bacterial Load ; Enterococcus ; isolation & purification ; Escherichia coli ; isolation & purification ; Female ; Flow Cytometry ; Humans ; Leukocyte Count ; Lung Neoplasms ; urine ; Predictive Value of Tests ; Pseudomonas aeruginosa ; isolation & purification ; Sensitivity and Specificity ; Urinary Bladder Neoplasms ; urine ; Urinary Tract Infections ; diagnosis ; microbiology ; urine ; Uterine Cervical Neoplasms ; urine

PURPOSE: We investigated whether C-reactive protein (CRP) levels, urine protein-creatinine ratio (uProt/Cr), and urine electrolytes can be useful for discriminating acute pyelonephritis (APN) from other febrile illnesses or the presence of a cortical defect on 99mTc dimercaptosuccinic acid (DMSA) scanning (true APN) from its absence in infants with febrile urinary tract infection (UTI). MATERIALS AND METHODS: We examined 150 infants experiencing their first febrile UTI and 100 controls with other febrile illnesses consecutively admitted to our hospital from January 2010 to December 2012. Blood (CRP, electrolytes, Cr) and urine tests [uProt/Cr, electrolytes, and sodium-potassium ratio (uNa/K)] were performed upon admission. All infants with UTI underwent DMSA scans during admission. All data were compared between infants with UTI and controls and between infants with or without a cortical defect on DMSA scans. Using multiple logistic regression analysis, the ability of the parameters to predict true APN was analyzed. RESULTS: CRP levels and uProt/Cr were significantly higher in infants with true APN than in controls. uNa levels and uNa/K were significantly lower in infants with true APN than in controls. CRP levels and uNa/K were relevant factors for predicting true APN. The method using CRP levels, u-Prot/Cr, u-Na levels, and uNa/K had a sensitivity of 94%, specificity of 65%, positive predictive value of 60%, and negative predictive value of 95% for predicting true APN. CONCLUSION: We conclude that these parameters are useful for discriminating APN from other febrile illnesses or discriminating true APN in infants with febrile UTI.
Acute Disease ; C-Reactive Protein/*analysis ; Case-Control Studies ; Fever/microbiology ; Humans ; Infant ; Male ; Potassium/*urine ; Predictive Value of Tests ; Prospective Studies ; Proteinuria/diagnosis ; Pyelonephritis/*diagnosis/radionuclide imaging ; Sensitivity and Specificity ; Sodium/*urine ; *Technetium Tc 99m Dimercaptosuccinic Acid ; Urinary Tract Infections/drug therapy/microbiology/*radionuclide imaging

No abstract available.
Aged ; Anti-Bacterial Agents/therapeutic use ; Bacteria/metabolism ; Catheter-Related Infections/diagnosis/drug therapy/*microbiology ; Color ; Equipment Design ; Escherichia coli Infections/diagnosis/drug therapy/*microbiology ; Female ; Humans ; Intestines/*microbiology ; Pigments, Biological/metabolism ; Treatment Outcome ; Tryptophan/metabolism ; Urinary Bladder Neoplasms/surgery ; Urinary Catheterization/adverse effects/*instrumentation ; *Urinary Catheters ; *Urinary Diversion ; Urinary Tract Infections/diagnosis/drug therapy/*microbiology ; Urine/chemistry/microbiology

BACKGROUND/AIMS: Acute pyelonephritis (APN) is the most common cause of community-onset bacteremia in hospitalized elderly patients. The objectives of this study were to investigate the differences in the clinical and microbiological data of hospitalized elderly and non-elderly women with community-onset APN. METHODS: Women with community-onset APN as a discharge diagnosis were identified from January 2004 to December 2013 using an electronic medical records system. We compared the clinical and microbiologic data in elderly and non-elderly women with community-onset APN due to Enterobacteriaceae. RESULTS: Of the 1,134 women with community-onset APN caused by Enterobacteriaceae, 443 were elderly and 691 were non-elderly women. The elderly group had a lower frequency of upper and lower urinary tract symptoms/signs than the non-elderly. The incidence of bacteremia, extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae, patients with a C-reactive protein (CRP) level > or = 15 mg/dL, and patients with a leukocyte count > or = 15,000/mm3 in the blood, were significantly higher in the elderly group than in the non-elderly group. The proportion of patients requiring hospitalization for 10 days or more was significantly higher in the elderly group compared to the non-elderly group (51.5% vs. 26.2%, p < 0.001). The clinical cure rates at 4 to 14 days after the end of therapy were 98.3% (338/344) and 97.4% (519/533) in the elderly and non-elderly groups, respectively (p = 0.393). CONCLUSIONS: Elderly women with APN exhibit higher serum CRP levels, a higher frequency of bacteremia, a higher proportion of ESBL-producing uropathogens, and require a longer hospitalization than non-elderly women, although these patients may not complain of typical urinary symptoms.
Acute Disease ; Adult ; Age Factors ; Aged ; Anti-Bacterial Agents/therapeutic use ; Community-Acquired Infections/*diagnosis/drug therapy/microbiology ; Electronic Health Records ; Enterobacteriaceae Infections/*diagnosis/drug therapy/microbiology ; Female ; Hospitalization ; Hospitals, University ; Humans ; Middle Aged ; Pyelonephritis/*diagnosis/drug therapy/microbiology ; Remission Induction ; Republic of Korea ; Retrospective Studies ; Risk Factors ; Sex Factors ; Time Factors ; Treatment Outcome ; Urinary Tract Infections/*diagnosis/drug therapy/microbiology

No abstract available.
Aged, 80 and over ; Anti-Bacterial Agents/pharmacology ; Bacterial Proteins/*genetics ; China ; Drug Resistance, Multiple, Bacterial ; Humans ; Male ; Methyltransferases/*genetics ; Microbial Sensitivity Tests ; RNA, Ribosomal, 16S/genetics/metabolism ; Serratia marcescens/drug effects/*enzymology/*genetics/isolation & purification ; Urinary Tract Infections/diagnosis/microbiology

Humans ; Infant, Newborn ; Male ; Sepsis ; diagnosis ; microbiology ; Urethral Stricture ; complications ; microbiology ; Urinary Tract Infections ; complications ; microbiology

With increase of multi-drug resistant Escherichia coli in community-acquired urinary tract infections (CA-UTI), other treatment option with a therapeutic efficacy and a low antibiotic selective pressure is necessary. In this study, we evaluated in vitro susceptibility of E. coli isolates from CA-UTI to fosfomycin (FM), nitrofurantoin (NI), temocillin (TMO) as well as trimethoprim-sulfamethoxazole (SMX), ciprofloxacin (CIP) and cefepime (FEP). The minimal inhibitory concentrations were determined by E-test or agar dilution method according to the Clinical and Laboratory Standards Institute guidelines, using 346 E. coli collected in 12 Korean hospitals from March 2010 to February 2011. FM, NI and TMO showed an excellent susceptibility profile; FM 100% (346/346), TMO 96.8% (335/346), and NI 99.4% (344/346). Conversely, resistance rates of CIP and SMX were 22% (76/346) and 29.2% (101/349), respectively. FEP still retained an activity of 98.5%. In Korea, NI and TMO in addition to FM are a good therapeutic option for uncomplicated CA-UTI, especially for lower UTI.
Anti-Bacterial Agents/*administration & dosage ; Cell Survival/*drug effects ; Cephalosporins/administration & dosage ; Ciprofloxacin/administration & dosage ; Community-Acquired Infections/drug therapy/*microbiology ; Dose-Response Relationship, Drug ; Drug Combinations ; Drug Resistance, Bacterial/drug effects ; Escherichia coli/*drug effects ; Escherichia coli Infections/drug therapy/*microbiology ; Fosfomycin/administration & dosage ; Humans ; Nitrofurantoin/administration & dosage ; Penicillins/administration & dosage ; Republic of Korea ; Sulfadoxine/administration & dosage ; Treatment Outcome ; Trimethoprim/administration & dosage ; Urinary Tract Infections/diagnosis/*microbiology

With increase of multi-drug resistant Escherichia coli in community-acquired urinary tract infections (CA-UTI), other treatment option with a therapeutic efficacy and a low antibiotic selective pressure is necessary. In this study, we evaluated in vitro susceptibility of E. coli isolates from CA-UTI to fosfomycin (FM), nitrofurantoin (NI), temocillin (TMO) as well as trimethoprim-sulfamethoxazole (SMX), ciprofloxacin (CIP) and cefepime (FEP). The minimal inhibitory concentrations were determined by E-test or agar dilution method according to the Clinical and Laboratory Standards Institute guidelines, using 346 E. coli collected in 12 Korean hospitals from March 2010 to February 2011. FM, NI and TMO showed an excellent susceptibility profile; FM 100% (346/346), TMO 96.8% (335/346), and NI 99.4% (344/346). Conversely, resistance rates of CIP and SMX were 22% (76/346) and 29.2% (101/349), respectively. FEP still retained an activity of 98.5%. In Korea, NI and TMO in addition to FM are a good therapeutic option for uncomplicated CA-UTI, especially for lower UTI.
Anti-Bacterial Agents/*administration & dosage ; Cell Survival/*drug effects ; Cephalosporins/administration & dosage ; Ciprofloxacin/administration & dosage ; Community-Acquired Infections/drug therapy/*microbiology ; Dose-Response Relationship, Drug ; Drug Combinations ; Drug Resistance, Bacterial/drug effects ; Escherichia coli/*drug effects ; Escherichia coli Infections/drug therapy/*microbiology ; Fosfomycin/administration & dosage ; Humans ; Nitrofurantoin/administration & dosage ; Penicillins/administration & dosage ; Republic of Korea ; Sulfadoxine/administration & dosage ; Treatment Outcome ; Trimethoprim/administration & dosage ; Urinary Tract Infections/diagnosis/*microbiology