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A new transurethral resection system: operating in saline environment precludes obturator nerve reflexes
Hiroaki Shiozawa1, Taku Aizawa, Takaaki Ito
1Department of Urology, Tokyo Medical University Hachioji Medical Center, Japan.
The Journal of Urology
|November 21, 2002
Summary
A new transurethral resection system using saline irrigation effectively prevents obturator nerve stimulation during bladder surgery. This innovative system demonstrates safety and cost-effectiveness for transurethral resection procedures.
Area of Science:
- Urology
- Medical Devices
- Surgical Innovation
Background:
- Transurethral resection (TUR) traditionally uses sorbitol irrigation, which can lead to electrolyte imbalances.
- Obturator nerve reflex is a common complication during TUR, causing involuntary muscle contractions.
Purpose of the Study:
- To develop and evaluate a novel transurethral resection system utilizing saline irrigation.
- To assess the efficacy and safety of the new system in preventing obturator nerve stimulation.
Main Methods:
- A new resectoscope and high-frequency generator system was designed for use in saline.
- Preclinical testing was conducted in a swine model, comparing the new system with conventional methods.
- Measurements included electrolyte levels and depth of heat degeneration in resected tissues.
Main Results:
- The new system effectively inhibited obturator nerve reflex in a saline environment.
- No significant changes in blood electrolytes were observed post-resection.
- The depth of heat-affected tissue was comparable to conventional systems, with no additional skills required.
Conclusions:
- The developed transurethral resection system is effective and safe in saline irrigation, mitigating obturator nerve reflex.
- This system presents a promising, cost-effective alternative to conventional TUR procedures.