Clinical significance of prostatic urethral angle and bladder neck open ratio in LUTS patients with small prostate (≤30cc) : influence on LUTS and surgical outcome = 하부요로 증상을 보인 작은 크기의 전립선(≤30cc)을 지닌 환자에서 전립선 요도 각도와 방광목 열린 비율의 임상적 중요성 : 하부요로증상에 미치는 영향과 수술 결과

다국어 초록 (Multilingual Abstract)

Objective
To investigate relationship among prostatic urethral angle (PUA) and lower urinary tract symptoms (LUTS), also between bladder neck open ratio (BOR) and LUTS in patients with small prostate volume (PV).

Materials and Methods
A retrospective review was conducted of patients who underwent transurethral resection of the prostate (TURP) for benign prostate hyperplasia (BPH) with LUTS. A patient was checked International Prostatic Symptom Score (IPSS), uroflowmetry, transrectal ultrasonography (TRUS) with PUA. The BOR was graded to 0, 1, 2, 3 by urethrocystoscopy. The patients were divided by three groups; group 1 was patients who had large PV (>30cc) and group 2 was patients who had small PV (≤30cc) with high PUA (≥35°) and group 3 was who had small PV (≤30cc) with low BOR (=1).

Results
Finally, we included 220 BPH patients. Group 2 had high IPSS than group 1 (24.94 ± 8.63 vs 19.01 ± 8.79, p=0.017), while there is no difference between 2 groups in mean PUA (p=0.998). Group 3 had high IPSS than group 1 (24.53 ± 8.49 vs 19.37 ± 8.73, p=0.020) and low BOR (0.96 ± 0.19 vs 1.70 ± 0.62, p<0.001). The mean PUA was decreased from 45.30° ± 13.86° to 6.22° ±13.75° after TURP. 3 months after TURP, decrease of IPSS was seen in group 2 and 3 (p<0.001).

Conclusions
Although the PV is small under 30cc in LUTS patients, the urologists should perform active benign prostate surgery to improve symptoms, when patients have these anatomical characteristics, high PUA or less BOR.

목차 (Table of Contents)

• Introduction 1
• Materials and Methods 3
• 1. Patients 3
• 2. Study Design 3
• 3. Statistical Analysis 4
• Results 6
• Discussion 8
• References 11
• Figures, Tables 14
• 국문 초록 17