Korean J Urol Oncol.
2019 Dec;17(3):143-149. 10.22465/kjuo.2019.17.3.143.
Impact of Bladder Neck Stiffness on Lower Urinary Tract Symptoms in Patient With Benign Prostatic Hyperplasia
- Affiliations
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- 1Department of Urology, Severance Check-Up, Health Promotion Center, Severance Hospital, Seoul, Korea.
- 2Department of Urology, Wonkwang University School of Medicine and Sanbon Hospital, Gunpo, Korea.
- 3Department of Urology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. kscho99@yuhs.ac
- KMID: 2470399
- DOI: http://doi.org/10.22465/kjuo.2019.17.3.143
Abstract
- PURPOSE
We evaluated the impact of bladder neck stiffness on lower urinary tract symptoms in the patient with benign prostatic hyperplasia using elastography.
MATERIALS AND METHODS
A total of 384 patients divided into three different groups according to the bladder neck stiffness based on ultrasound with elastography. Patients age, prostate specific antigen (PSA), International Prostate Symptom Score (IPSS), prostate volumetric parameters, residual urine volume, and laboratory data were collected and compared among the three groups.
RESULTS
Group 1 (n=121) showed low stiffness in both bladder neck adenoma. Group 2 (n=157) showed low to intermediated stiffness, and group 3 (n=106) showed significantly higher stiffness of bladder neck and adenoma compared to adjacent prostatic tissue. Significant differences among the 3 groups were found in the total prostate volume, transition zone volume, transition zone index, total IPSS, IPSS-voiding, IPSS-storage, residual urine volume, and quality of life. As the stiffness increased, prostate volumetric parameters, and residual urine volume were increased, and lower urinary tract symptoms became exacerbated. No significant difference was found in the patients' age and PSA.
CONCLUSIONS
Bladder neck stiffness affected the lower urinary tract symptoms and prostate volumetric parameters. These findings suggest that the change of bladder neck stiffness can be a novel parameter for the development of lower urinary tract symptoms/benign prostate hyperplasia.
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