PURPOSE: Post-void residual urine can lead to various complications, including urinary tract infection. Recently investigators calculated that a cutoff value of 180 ml has considerably high sensitivity and specificity for significant bacteriuria in asymptomatic men. We determined the association between post-void residual urine volume and urinary tract infection, and validated the suggested 180 ml cutoff in asymptomatic men. MATERIALS AND METHODS: In a prospective study we analyzed certain criteria in 225 asymptomatic male patients, including prostate specific antigen, prostate volume, International Prostate Symptom Score, peak urine flow rate, urine culture results and post-void residual urine volume using transabdominal ultrasound. Using ROC analysis a cutoff predicting bacteriuria was calculated. Different cutoff values were validated. RESULTS: Of the study group 60% were able to completely empty the bladder and had a post-void residual urine volume of 10 ml or less. However, in 31% of the study group urine culture was positive. Patients presenting with urinary tract infection had significantly higher mean post-void residual urine volume than patients without urinary tract infection (113 vs 41 ml, p <0.001). In 29 men (13%) post-void residual volume was 180 ml or greater. Confirming urinary tract infection, this cutoff showed only 28% sensitivity and 94% specificity (AUC 0.606, p = 0.01). CONCLUSIONS: No cutoff value could be determined to predict positive urine culture with sufficient sensitivity and specificity. Based on the results of the current study it seems premature to recommend a cutoff value leading to therapeutic consequences.
PURPOSE: Post-void residual urine can lead to various complications, including urinary tract infection. Recently investigators calculated that a cutoff value of 180 ml has considerably high sensitivity and specificity for significant bacteriuria in asymptomatic men. We determined the association between post-void residual urine volume and urinary tract infection, and validated the suggested 180 ml cutoff in asymptomatic men. MATERIALS AND METHODS: In a prospective study we analyzed certain criteria in 225 asymptomatic male patients, including prostate specific antigen, prostate volume, International Prostate Symptom Score, peak urine flow rate, urine culture results and post-void residual urine volume using transabdominal ultrasound. Using ROC analysis a cutoff predicting bacteriuria was calculated. Different cutoff values were validated. RESULTS: Of the study group 60% were able to completely empty the bladder and had a post-void residual urine volume of 10 ml or less. However, in 31% of the study group urine culture was positive. Patients presenting with urinary tract infection had significantly higher mean post-void residual urine volume than patients without urinary tract infection (113 vs 41 ml, p <0.001). In 29 men (13%) post-void residual volume was 180 ml or greater. Confirming urinary tract infection, this cutoff showed only 28% sensitivity and 94% specificity (AUC 0.606, p = 0.01). CONCLUSIONS: No cutoff value could be determined to predict positive urine culture with sufficient sensitivity and specificity. Based on the results of the current study it seems premature to recommend a cutoff value leading to therapeutic consequences.
Authors: Harvey D Homan; Roger Dmochowski; James S Cochran; Lawrence Karsh; Neil D Sherman; Subbarao Yalla Journal: Neurourol Urodyn Date: 2015-04-09 Impact factor: 2.696
Authors: Mike Wenzel; Marina Deuker; Maria N Welte; Benedikt Hoeh; Felix Preisser; Till Homrich; Volkhard A J Kempf; Michael Hogardt; Philipp Mandel; Pierre I Karakiewicz; Felix K H Chun; Luis A Kluth Journal: Front Surg Date: 2020-12-03
Authors: Eu Chang Hwang; Seung Il Jung; Dong Deuk Kwon; Gilho Lee; Jae Hyun Bae; Yong Gil Na; Seung Ki Min; Hwancheol Son; Sun Ju Lee; Jae Min Chung; Hong Chung; In Rae Cho; Young Ho Kim; Tae-Hyoung Kim; In Ho Chang Journal: J Korean Med Sci Date: 2014-09-02 Impact factor: 2.153