Articles: bacteriuria-diagnosis.
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In selected patients, detection of antibody-coated bacteria (ACB) in voided urine has correlated with upper urinary tract infection. From unselected patients, we studied 350 consecutive urine specimens submitted to the diagnostic laboratory with colony counts greater than or equal to 10(5)/ml. In 19% (55) among 288 specimens selected for final analysis ACB occurred. ⋯ The relationship of ACB to clinical syndromes was: asymptomatic bacteriuria, 15% (27/178); cystitis, 8% (6/75); acute hemorrhagic cystitis, 67% (4/6); prostatitis, 67% (2/3); and acute pyelonephritis, 62% (16/26). Among seven clinical findings, only structural abnormalities of the upper urinary tract correlated with the presence of ACB. Failure of fever and leukocytosis to correlate with ACB probably reflected the presence of other associated primary medical or surgical conditions.
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Acta Paediatr Scand · May 1977
Comparative StudyAsymptomatic bacteriuria in schoolgirls. VI. The correlation between urinary and faecal Escherichia coli. Relation to the duration of the bacteriuria and the sampling technique.
The occurrence of the urinary strain in the anus, rectum and faeces was investigated in 27 girls with asymptomatic bacteriuria (ABU). In patients with bacteriuria of relatively short duration 46% of the faecal isolates were of the urinary strain as compared to only 18% in patients with bacteriuria of relatively long duration. ⋯ Secondly, the correlation may be obscured by complex changes in the properties of bacterial strains established in the urinary tract. Contamination by the infected urine did not seem to be a serious problem when the rectal mucosa was swabbed proximal to the anal canal.
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Comparative Study
Qualitative assessment of midstream urine cultures in the detection of bacteriuria.
3550 women attending cervical smear and family planning clinics have been screened for bacteriria. Suprapubic aspiration of urine was carried out in 131 patients from whom two consecutive midstream urine specimens contained either a pure growth of Gram positive cocci or a growth in which Gram negative bacilli predominated. 95 patients were found to have bacteriuria; in 93 the urine was infected with a Gram negative organism. ⋯ However, 45 (48%) of the 93 patients with bacteriuria did not have two consecutive counts greater than 10-5 organisms per milliliter , and 10 (11%) had counts of less than 10-4 organisms per milliliter in at least one of the two midstream urine samples. It is concluded that midstream urine counts of less than 10-5 organisms per milliliter in which Gram negative bacilli predominate may be indicative of bacteriuria and should be confirmed by suprapubic aspiration.