Morphologic changes after bladder neck intussusception in laparoscopic radical prostatectomy contribute to early...

Area of Science:

• Urology
• Surgical Oncology
• Medical Imaging

Background:

• Postoperative urinary incontinence is a common complication following radical prostatectomy.
• Optimizing bladder neck reconstruction is crucial for restoring continence.
• Laparoscopic radical prostatectomy (LSRP) offers minimally invasive advantages, but continence outcomes require continuous improvement.

Purpose of the Study:

• To investigate the mechanism and efficacy of a modified bladder neck intussusception technique during LSRP.
• To assess the impact of this technique on early postoperative urinary continence.

Main Methods:

• A prospective study comparing 10 patients undergoing LSRP with modified bladder neck intussusception against 10 patients without intussusception.
• Postoperative assessments at 1 and 3 months included PSA, pad tests, MRI, flow rates, IPSS, OABSS, ICI-Q-SF, and Qol.
• Real-time MRI (rt-MRI) was used to evaluate bladder neck morphology and function during Valsalva and micturition.

Main Results:

• Patients with bladder neck intussusception showed significantly higher continence rates (90% vs. 20%) at 3 months post-surgery.
• The intussusception group experienced lower overactive bladder symptom scores and less severe incontinence.
• rt-MRI revealed a longer functional posterior urethra and a wider angle at the bladder neck in the intussusception group, with less dynamic movement during micturition.

Conclusions:

• Modified bladder neck intussusception in LSRP effectively prolongs functional posterior urethra length.
• This technique demonstrates significant efficacy in improving early postoperative urinary continence and quality of life.