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1. 成人の尿路感染症の診断における排出尿採取および評価sampling and evaluation of voided urine in the diagnosis of urinary tract infection in adults [show details]
…dilute urine and partial bacterial washout due to multiple voids may lower the colony count below the accepted definition for bacteriuria diagnostic of a UTI. An optimal clean-catch, midstream urine is …
2. 尿路感染症を疑う乳幼児や小児への採尿方法urine collection techniques in infants and children with suspected urinary tract infection [show details]
… the urine specimen is collected. Furthermore, an infant or young child should not receive antibiotics on the basis of a positive urine dipstick or urinalysis from a clean catch or voided bag urine specimen …
3. 無症候性細菌尿のある成人に対するアプローチapproach to the adult with asymptomatic bacteriuria [show details]
…consecutive clean-catch voided urine specimens with isolation of the same organism in quantitative counts of ≥10⁵ cfu/mL . This definition is based upon studies of voided and catheterized urine specimens… Urine is normally sterile but can be a good growth medium for bacteria that enter the bladder and are not eliminated. Because of the difficulty in obtaining uncontaminated voided midstream urine specimens…
4. 妊娠中の尿路感染症および無症候性細菌尿urinary tract infections and asymptomatic bacteriuria in pregnancy [show details]
…concentrated morning urine, a midstream sample, and a clean-catch midstream sample, in that order, over the course of a day . Rates of mixed growth and growth of skin flora on culture in midstream urine were comparable… Findings from this and other studies suggest that collection of a clean-catch voided urine specimen is of little value .…
5. 女性の急性単純性膀胱炎acute simple cystitis in women [show details]
…who collected a midstream, clean-catch urine, and subsequently underwent urethral catheterization to collect a bladder urine specimen . There was high concordance between growth on voided and catheterized …

English Journal

A Cross-sectional Pilot Cohort Study Comparing Standard Urine Collection to the Peezy Midstream Device for Research Studies Involving Women.

Southworth E, Hochstedler B, Price TK, Joyce C, Wolfe AJ, Mueller ER.
Female pelvic medicine & reconstructive surgery. ;25(2)e28-e33.
The expanded quantitative urine culture protocol was used to compare the microbial abundance and diversity of voided urines obtained using a standard urine collection or using the Peezy midstream device versus paired periurethral specimens. Sixty-two female participants were assigned to 1 of 3 cohor
PMID 30807432

Utility of catheterized specimens in reducing overdiagnosis of urinary tract infections in women.

Aisen CM, Ditkoff E, RoyChoudhury A, Corish M, Rutman MP, Chung DE, Badalato GM, Cooper KL.
Neurourology and urodynamics. 2018 Aug;37(6)1996-2001.
To evaluate the utility of catheterized samples in reducing overdiagnosis of UTI based on voided specimens among patients presenting with a range of urinary symptoms. We also aimed to determine variables that may modify the predictive value of the voided midstream urine culture. Patient charts were
PMID 29603811

Diversity of the midstream urine microbiome in adults with chronic kidney disease.

Kramer H, Kuffel G, Thomas-White K, Wolfe AJ, Vellanki K, Leehey DJ, Bansal VK, Brubaker L, Flanigan R, Koval J, Wadhwa A, Zilliox MJ.
International urology and nephrology. 2018 Jun;50(6)1123-1130.
To examine the characteristics of the midstream urine microbiome in adults with stage 3-5 non-dialysis-dependent chronic kidney disease (CKD). Patients with non-dialysis-dependent CKD (estimated glomerular filtration rate [eGFR] < 60 ml/min/1.73 m) and diuretic use were recruited from outpatie
PMID 29651696