Korean J Urol.  2014 Jan;55(1):47-51. 10.4111/kju.2014.55.1.47.

Changes in Bladder Wall Thickness and Detrusor Wall Thickness After Surgical Treatment of Benign Prostatic Enlargement in Patients With Lower Urinary Tract Symptoms: A Preliminary Report

• Lee H
• Choo M
• Kim M
• Cho SY
• Lee SB
• Jeong H
• Son H

• KMID: 1988452
• DOI: http://doi.org/10.4111/kju.2014.55.1.47

Abstract

PURPOSE
The purpose of the present study was to evaluate the perioperative changes in bladder wall thickness and detrusor wall thickness after transurethral prostatectomy.
MATERIALS AND METHODS
Fifty-one men who were treated for benign prostatic hyperplasia/lower urinary tract symptoms with transurethral prostatectomy were prospectively analyzed from May 2012 to July 2013. Prostate size, detrusor wall thickness, and bladder wall thickness were assessed by transrectal and transabdominal ultrasonography perioperatively. All postoperative evaluations were performed 1 month after the surgery.
RESULTS
The patients' mean age was 69.0 years, the mean prostate-specific antigen concentration was 8.1 ng/mL, and the mean prostate volume was 63.2 mL. The mean bladder wall thickness was 5.1 mm (standard deviation [SD], +/-1.6), 5.1 mm (SD, +/-1.6), and 5.0 mm (SD, +/-1.4) preoperatively and 4.5 mm (SD, +/-1.5), 4.5 mm (SD, +/-1.3), and 4.6 mm (SD, +/-1.2) postoperatively in the anterior wall, dome, and trigone, respectively (p=0.178, p=0.086, and p=0.339, respectively). The mean detrusor wall thickness was 0.9 mm (SD, +/-0.4) preoperatively and 0.7 mm (SD, +/-0.3) postoperatively (p=0.001). A subgroup analysis stratifying patients into a large prostate group (weight, > or =45 g) and a high Abrams-Griffiths number group (>30) showed a significant decrease in detrusor wall thickness (p=0.002, p=0.018).
CONCLUSIONS
There was a decrease in detrusor wall thickness after transurethral prostatectomy. The large prostate group and the high Abrams-Griffiths number group showed a significant decrease in detrusor wall thickness after surgery.

Keyword

Lower urinary tract symptoms; Prostate; Urinary bladder

MeSH Terms

Humans
Lower Urinary Tract Symptoms*
Male
Prospective Studies
Prostate
Prostate-Specific Antigen
Transurethral Resection of Prostate
Ultrasonography
Urinary Bladder*
Urinary Tract
Prostate-Specific Antigen

Figure

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  FIG. 1 Measurement of detrusor wall thickness.

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