
Abstract Purpose This study compared the results of the new Sysmex PA-100 AST System, a point-of-care analyser, with routine microbiology for the detection of urinary tract infections (UTI) and performance of antimicrobial susceptibility tests (AST) directly from urine. Methods Native urine samples from 278 female patients with suspected uncomplicated UTI were tested in the Sysmex PA-100 and with reference methods of routine microbiology: urine culture for bacteriuria and disc diffusion for AST. Results The analyser delivered bacteriuria results in 15 min and AST results within 45 min. Sensitivity and specificity for detection of microbiologically confirmed bacteriuria were 84.0% (89/106; 95% CI: 75.6–90.4%) and 99.4% (155/156; 95% CI: 96.5–100%), respectively, for bacterial species within the analyser specifications. These are Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Enterococcus faecalis and Staphylococcus saprophyticus, which are common species causing uncomplicated UTI. Overall categorical agreement (OCA) for AST results for the five antimicrobials tested in the Sysmex PA-100 (amoxicillin/clavulanic acid, ciprofloxacin, fosfomycin, nitrofurantoin and trimethoprim) ranged from 85.4% (70/82; 95%CI: 75.9–92.2%) for ciprofloxacin to 96.4% (81/84; 95% CI: 89.9–99.3%) for trimethoprim. The Sysmex PA-100 provided an optimal treatment recommendation in 218/278 cases (78.4%), against 162/278 (58.3%) of clinical decisions. Conclusion This first clinical evaluation of the Sysmex PA-100 in a near-patient setting demonstrated that the analyser delivers phenotypic AST results within 45 min, which could enable rapid initiation of the correct targeted treatment with no further adjustment needed. The Sysmex PA-100 has the potential to significantly reduce ineffective or unnecessary antibiotic prescription in patients with UTI symptoms.
Adult, Antibiotic susceptibility test (AST), Bacteriuria, Adolescent, Point-of-Care Systems, Microbial Sensitivity Tests, Antimicrobial resistance, Sensitivity and Specificity, Young Adult, Urinary tract infection (UTI), Aged, 80 and over [MeSH] ; Antimicrobial resistance ; Aged [MeSH] ; Bacteriuria/diagnosis [MeSH] ; Bacteriuria/drug therapy [MeSH] ; Antibiotic susceptibility test (AST) ; Bacteria/drug effects [MeSH] ; Original Article ; Microbial Sensitivity Tests/methods [MeSH] ; Sensitivity and Specificity [MeSH] ; Urinary tract infection (UTI) ; Phenotypic antibiotic susceptibility test (AST) ; Urinary Tract Infections/microbiology [MeSH] ; Bacteria/isolation ; Adolescent [MeSH] ; Female [MeSH] ; Point-of-Care Systems [MeSH] ; Adult [MeSH] ; Humans [MeSH] ; Microbial Sensitivity Tests/instrumentation [MeSH] ; Bacteriuria ; Point-of-care ; Urinary Tract Infections/drug therapy [MeSH] ; Middle Aged [MeSH] ; Nanofluidics ; Urinary Tract Infections/diagnosis [MeSH] ; Bacteriuria/microbiology [MeSH] ; Anti-Bacterial Agents/pharmacology [MeSH] ; Young Adult [MeSH], Humans, Aged, Aged, 80 and over, Bacteria, Nanofluidics, Middle Aged, Anti-Bacterial Agents, Phenotypic antibiotic susceptibility test (AST), Point-of-care, Urinary Tract Infections, Original Article, Female
Adult, Antibiotic susceptibility test (AST), Bacteriuria, Adolescent, Point-of-Care Systems, Microbial Sensitivity Tests, Antimicrobial resistance, Sensitivity and Specificity, Young Adult, Urinary tract infection (UTI), Aged, 80 and over [MeSH] ; Antimicrobial resistance ; Aged [MeSH] ; Bacteriuria/diagnosis [MeSH] ; Bacteriuria/drug therapy [MeSH] ; Antibiotic susceptibility test (AST) ; Bacteria/drug effects [MeSH] ; Original Article ; Microbial Sensitivity Tests/methods [MeSH] ; Sensitivity and Specificity [MeSH] ; Urinary tract infection (UTI) ; Phenotypic antibiotic susceptibility test (AST) ; Urinary Tract Infections/microbiology [MeSH] ; Bacteria/isolation ; Adolescent [MeSH] ; Female [MeSH] ; Point-of-Care Systems [MeSH] ; Adult [MeSH] ; Humans [MeSH] ; Microbial Sensitivity Tests/instrumentation [MeSH] ; Bacteriuria ; Point-of-care ; Urinary Tract Infections/drug therapy [MeSH] ; Middle Aged [MeSH] ; Nanofluidics ; Urinary Tract Infections/diagnosis [MeSH] ; Bacteriuria/microbiology [MeSH] ; Anti-Bacterial Agents/pharmacology [MeSH] ; Young Adult [MeSH], Humans, Aged, Aged, 80 and over, Bacteria, Nanofluidics, Middle Aged, Anti-Bacterial Agents, Phenotypic antibiotic susceptibility test (AST), Point-of-care, Urinary Tract Infections, Original Article, Female
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