Post-Void Residual Urine as a Predictor of Urinary Tract Infection—Is There a Cutoff Value in Asymptomatic Men?
| Autor: | Bernd Hoschke, Christian Gilfrich, Friederike Kendel, Sabine Brookman-Amissah, K.-P. Braun, Matthias May |
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| Rok vydání: | 2009 |
| Předmět: |
Male
medicine.medical_specialty Urinalysis Urology Urinary system Urination Urine Bacteriuria urologic and male genital diseases Asymptomatic Urine flow rate medicine Humans Prospective Studies Aged Urinary bladder medicine.diagnostic_test business.industry medicine.disease medicine.anatomical_structure Urinary Tract Infections International Prostate Symptom Score medicine.symptom business |
| Zdroj: | Journal of Urology. 181:2540-2544 |
| ISSN: | 1527-3792 0022-5347 |
| DOI: | 10.1016/j.juro.2009.01.103 |
| Popis: | 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.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.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, p0.001). 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).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. |
| Databáze: | OpenAIRE |
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