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KMID : 1234520100050010063
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Korean Journal of Urogenital Tract Infection Inflammation
2010 Volume.5 No. 1 p.63 ~ p.67
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The Correlation between Post-void Residual Urine Volume and Urinary Tract Infection in Asymptomatic Men Visited for Prostate Examination
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Yim Seung-Hyuk
Ha U-Syn
Sohn Dong-Wan
Cho Yong-Hyun
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Abstract
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Purpose: The large post-void residual urine (PVR) could be related to various complications, especially urinary tract infections (UTIs). Although numerous cut-off value of PVR related to UTIs have been proposed there is still debate on that. We investigated the correlation between PVR and UTIs.
Materials and Methods: From January 2008 to December 2008, retrospective analysis was performed on 351 asymptomatic male patients who visited our clinic for prostate examination. The prostate specific antigen (PSA) level, peak urine flow rate, PVR, voided urine volume, International Prostatic Symptom Score (IPSS) and urine culture results were obtained. PVR was measured by portable bladder scanner. A positive result of urine culture was defined as growth of more than 100,000 bacteria per ml. We investigated the association between urine culture results and PVR, and estimated cut-off value of PVR predicting bacteriuria using ROC analysis.
Results: The mean age of patients was 63.3±10.4years and 8.83% of the total patients (31 patients) showed positive in urine culture. Mean PVR volume was significantly higher in the group with positive urine culture compare to the group with negative urine culture (105.6mL vs 41.8mL, p<0.001), but we couldn’t validate cut-off value of PVR for predicting UTIs.
Conclusions: Significant bacteriuria was found in 8.83% of the asymptomatic male patients. Although the positive relationship between PVR and the risk of UTIs was found we couldn’t validate cut-off value of PVR for predicting UTIs.
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KEYWORD
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Urination, Residual volume, Urinary tract infection
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