Related Experiment Videos
Rotoresect: new technique for resection of the prostate: experimental phase
M S Michel1, K U Köhrmann, A Weber
1Department of Urology, Klinikum Mannheim of the University of Heidelberg, Germany.
Journal of Endourology
|October 1, 1996
Summary
The new Rotoresect device reduces bleeding during prostate surgery. This surgical tool offers comparable tissue removal to traditional methods but with significantly less blood loss, improving patient outcomes.
Area of Science:
- Surgical Technology
- Minimally Invasive Surgery
- Urology
Background:
- Transurethral resection of the prostate (TURP) can be associated with significant morbidity.
- Existing resection techniques may lead to considerable bleeding and tissue damage.
Purpose of the Study:
- To introduce and evaluate the Rotoresect, a novel device designed to minimize morbidity during TURP.
- To assess the tissue ablation rate and bleeding associated with the Rotoresect compared to conventional methods.
Main Methods:
- Ex vivo experiments using a blood-perfused porcine kidney model (N=30) to quantify tissue ablation and bleeding.
- Comparison of Rotoresect with loop resection and electrovaporization (grooved roller/Rollerball).
- In vivo trials in dogs involving transurethral prostate resection and open liver resection.
Main Results:
- Rotoresect demonstrated a tissue ablation rate comparable to loop resection (5.5-6.0 g/min) and over twice that of electrovaporization (1.7-2.0 g/min).
- Bleeding with Rotoresect (< 2.3 g/min) was substantially lower than with standard loop resection (16.5-18.0 g/min).
- In vivo canine procedures showed minimal bleeding during prostate and liver resections.
Conclusions:
- The Rotoresect device enables simultaneous tissue coagulation and ablation, reducing operative bleeding.
- It offers an effective and safer alternative for tissue ablation in various surgical procedures.
- Rotoresect shows promise for transurethral, laparoscopic, and open surgeries involving parenchymal organs.