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Prostatic urethral angulation associated with urinary flow rate and urinary symptom scores in men with lower urinary tract symptoms

Authors
 Woo Jin Bang ; Hong Wook Kim ; Kang Su Cho ; Won Sik Ham ; Ho Song Yu ; Kyo Chul Koo ; Hyung Ho Lee ; Yoon Soo Hah ; Dae Hoon Lee ; Joo Yong Lee 
Citation
 Urology, Vol.80(6) : 1333~1337, 2012 
Journal Title
 Urology 
ISSN
 0090-4295 
Issue Date
2012
Abstract
OBJECTIVE: To evaluate the effect of the prostatic urethral angle (PUA) on the peak flow rate (Qmax) and urinary symptoms in the clinical setting. MATERIALS AND METHODS: The records were obtained from a prospectively maintained database for first-visit men with lower urinary tract symptoms. Uroflowmetric measurements, postvoid residual urine volume, and International Prostate Symptom Score were assessed. The prostate-related parameters, including prostate volume, PUA, and intravesical prostatic protrusion, were measured using transrectal ultrasonography. Patients with comorbidities that can affect voiding function or in whom the PUA could not be measured were excluded. RESULTS: A total of 316 patients were included. On multivariate linear regression analysis, the PUA (P = .002) was independently associated with the International Prostate Symptom Score. However, the International Prostate Symptom Score was not influenced by patient age, prostate volume, or intravesical prostatic protrusion. The mean PUA was significantly different according to symptom severity. The mean PUA was 42.2° ± 7.0°, 45.5° ± 9.1°, and 47.3° ± 8.6° in patients with mild, moderate, and severe symptoms, respectively (P = .004, analysis of variance). Although the PUA (P <.001) and patient age (P <.001) were independent predictors of Qmax, the prostate volume and intravesical prostatic protrusion did not affect the Qmax. The mean PUA was 52.2° ± 7.3° in patients with a Qmax <10 mL/s, 45.0° ± 7.9° in those with a Qmax ≥10 mL/s but <20 mL/s, and 39.8° ± 7.9° in those with a Qmax of ≥20 mL/s (P <.001, analysis of variance). CONCLUSION: The results of our study has shown that the PUA is significantly associated with the Qmax and symptom scores in men with lower urinary tract symptoms. Our findings suggest that the PUA should be considered in the treatment of male patients with lower urinary tract symptoms.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/92000
DOI
10.1016/j.urology.2012.08.058
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Urology
Yonsei Authors
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Link
 http://www.sciencedirect.com/science/article/pii/S0090429512010539
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