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Bipolar versus monopolar technique for palliative transurethral prostate resection.
Dirk P J Michielsen1, Danny Coomans, Benedikt Engels
1Department of Urology, University Hospital - Free University of Brussels, Belgium.
Archives of Medical Science : AMS
|March 16, 2012
Summary
Palliative endoscopic resections safely relieve urinary obstruction in prostate cancer patients. Bipolar technology showed no significant advantage over monopolar techniques for these procedures.
Area of Science:
- Urology
- Oncology
- Surgical Technology
Background:
- Prostate cancer patients often experience infravesical obstruction due to hormone deprivation therapy.
- Palliative endoscopic resections aim to relieve these voiding disorders.
Purpose of the Study:
- Evaluate postoperative morbidity and outcomes of palliative endoscopic resections for prostate cancer.
- Compare the efficacy and safety of bipolar versus conventional monopolar resection technologies.
Main Methods:
- Retrospective analysis of 75 endoscopic procedures in 70 prostate cancer patients undergoing hormone deprivation therapy.
- Comparison of patient profiles, operative parameters, postoperative morbidity, and outcomes between monopolar and bipolar techniques.
- Analysis of serum electrolytes, clot retention, urinary retention, and overall success rates.
Main Results:
- No significant differences observed in patient demographics, resection parameters, or complications (sodium drop, clot/urinary retention) between monopolar and bipolar groups.
- Overall success rate for relieving obstruction and enabling spontaneous voiding was 77%.
- Significant increase in high-grade tumors post-resection (38% to 79%), indicating disease progression.
Conclusions:
- Palliative endoscopic transurethral resection is a safe and effective adjunctive treatment for voiding dysfunction in prostate cancer.
- Bipolar technology does not offer significant advantages over conventional monopolar technology in this setting.

