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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Clin+Microbiol
2016 ; 54
(5
): 1216-22
Nephropedia Template TP
gab.com Text
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The Clinical Urine Culture: Enhanced Techniques Improve Detection of Clinically
Relevant Microorganisms
#MMPMID26962083
Price TK
; Dune T
; Hilt EE
; Thomas-White KJ
; Kliethermes S
; Brincat C
; Brubaker L
; Wolfe AJ
; Mueller ER
; Schreckenberger PC
J Clin Microbiol
2016[May]; 54
(5
): 1216-22
PMID26962083
show ga
Enhanced quantitative urine culture (EQUC) detects live microorganisms in the
vast majority of urine specimens reported as "no growth" by the standard urine
culture protocol. Here, we evaluated an expanded set of EQUC conditions
(expanded-spectrum EQUC) to identify an optimal version that provides a more
complete description of uropathogens in women experiencing urinary tract
infection (UTI)-like symptoms. One hundred fifty adult urogynecology
patient-participants were characterized using a self-completed validated UTI
symptom assessment (UTISA) questionnaire and asked "Do you feel you have a UTI?"
Women responding negatively were recruited into the no-UTI cohort, while women
responding affirmatively were recruited into the UTI cohort; the latter cohort
was reassessed with the UTISA questionnaire 3 to 7 days later. Baseline
catheterized urine samples were plated using both standard urine culture and
expanded-spectrum EQUC protocols: standard urine culture inoculated at 1 ?l onto
2 agars incubated aerobically; expanded-spectrum EQUC inoculated at three
different volumes of urine onto 7 combinations of agars and environments.
Compared to expanded-spectrum EQUC, standard urine culture missed 67% of
uropathogens overall and 50% in participants with severe urinary symptoms.
Thirty-six percent of participants with missed uropathogens reported no symptom
resolution after treatment by standard urine culture results. Optimal detection
of uropathogens could be achieved using the following: 100 ?l of urine plated
onto blood (blood agar plate [BAP]), colistin-nalidixic acid (CNA), and MacConkey
agars in 5% CO2 for 48 h. This streamlined EQUC protocol achieved 84% uropathogen
detection relative to 33% detection by standard urine culture. The streamlined
EQUC protocol improves detection of uropathogens that are likely relevant for
symptomatic women, giving clinicians the opportunity to receive additional
information not currently reported using standard urine culture techniques.