The aim of this study was to estimate the prevalence of vesicoureteral reflux (VUR) and clinically significant ultrasonography (US) abnormalities in a large group of children with proven and suspected urinary tract infection (UTI). The medical reports on renal US and voiding cystouretrographies (VCUG) of 2,036 children were reviewed. Renal US was performed on all children and VCUG on 1,185 children (58%). Based on the urine culture data, the UTI diagnoses were classified into five reliability classes (proven, likely, unlikely, false and no microbial data). The UTI diagnose was considered proven in 583/2036 (28.6%) and false in 145 (7.1%) cases. The prevalence of VUR was similar among those with proven and false UTI [37.4 vs. 34.8%; relative risk (RR) 1.08, 95% confidence intervals (95% CI) 0.7-1.7, P = 0.75] and decreased with increasing age (P = 0.001). Clinically significant US abnormalities occurred in 87/583 (14.9%) cases with proven UTI and significantly less often (11/145, 7.6%) in the false UTI class (RR 1.96, 95% CI 1.1-3.6, P = 0.02). Our finding supports the claim that VUR is not significantly associated to UTI and that its occurrence among children even without UTI is significantly higher than traditional estimates. This challenges the recommendations of routine VCUG after UTI.
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PLoS One
January 2025
Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka, Bangladesh.
The gram-negative, facultative anaerobic bacterium Morganella morganii is linked to a number of illnesses, including nosocomial infections and urinary tract infections (UTIs). A clinical isolate from a UTI patient in Bangladesh was subjected to high-throughput whole genome sequencing and extensive bioinformatics analysis in order to gather knowledge about the genomic basis of bacterial defenses and pathogenicity in M. morganii.
View Article and Find Full Text PDFUrol Case Rep
November 2024
James Buchanan Brady Urological Institute, Division of Pediatric Urology, The Johns Hopkins Medical Institutions, Baltimore, MD, USA.
Urologic patients with anatomic abnormalities can be particularly susceptible to urinary tract infections (UTI). UTI with urease-producing bacteria can promote struvite urinary calculi and pose unique treatment problems. There is potential for rapid stone growth and bacterial eradication can be difficult secondary to urothelial or stone colonization.
View Article and Find Full Text PDFJ Infect Chemother
January 2025
Department of Infectious Diseases, Kameda Medical Center, 929 Higashi-cho, Kamogawa, 296-8602, Japan.
Herein, we present the case of a 64-year-old woman diagnosed with left calculous pyelonephritis. Gram-positive cocci in clusters were isolated from two sets of her blood culture. These cocci were later identified as Staphylococcus saprophyticus.
View Article and Find Full Text PDFBr J Clin Pharmacol
January 2025
Department of Medical Microbiology, Haaglanden Medisch Centrum, The Hague, The Netherlands.
Aims: The beta-lactam antibiotic temocillin is increasingly used to treat extended-spectrum beta-lactamase (ESBL-producing) strains; however, its protein binding is complex. This study aims to predict unbound temocillin concentrations in various participant groups to determine its impact on the probability of target attainment (PTA) and to improve dosing recommendations.
Methods: The plasma pharmacokinetics were analysed using non-linear mixed-effects modelling.
Cureus
December 2024
Emergency and Critical Care Medicine, Iizuka City Hospital, Iizuka, JPN.
Urinary tract infections (UTIs) caused by urease-producing bacteria are known to cause hyperammonemia; however, non-urease-producing bacteria can also cause it. This report describes a case of an 87-year-old woman who developed hyperammonemia and impaired consciousness resulting from a UTI caused by the non-urease-producing bacterium, (). On admission, the patient presented with urinary retention, hyperammonemia (281 μg/dL), and alkaline urine (pH 8.
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