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Laparoscopic partial nephrectomy using holmium laser in a porcine model.
Yair Lotan1, Matthew T Gettman, Guy Lindberg
1Department of Urology, University of Texas Southwestern Medical Center at Dallas, 75390-9110, USA.
JSLS : Journal of the Society of Laparoendoscopic Surgeons
|February 21, 2004
Summary
The Holmium:YAG laser effectively transects kidney tissue during laparoscopic partial nephrectomy in pigs, demonstrating hemostasis without complications. Further human trials are needed to confirm its clinical utility.
Area of Science:
- Urology
- Surgical Technology
- Nephrology
Background:
- Partial nephrectomy is a key procedure for kidney tumor removal.
- Minimally invasive techniques like laparoscopy are preferred.
- Novel energy devices are being explored to improve surgical outcomes.
Purpose of the Study:
- To assess the efficacy and safety of the holmium laser for kidney transection during laparoscopic partial nephrectomy.
- To evaluate hemostasis and complications in a porcine model.
Main Methods:
- Laparoscopic partial nephrectomy was performed on 9 pigs.
- A holmium:YAG laser (1000- or 550-microm fiber) was used for kidney transection.
- Animals were observed for 2 weeks (survival group) or sacrificed acutely.
- Kidneys were analyzed macroscopically and microscopically.
Main Results:
- Holmium laser transection was successful in all cases with adequate hemostasis.
- No significant blood loss or perioperative complications were observed.
- Serum creatinine levels remained normal in survival animals; minor extravasation occurred in 2.
Conclusions:
- The holmium:YAG laser is an effective tool for kidney transection in laparoscopic partial nephrectomy models.
- The laser shows promise for minimally invasive kidney surgery.
- Human clinical trials are warranted to establish its role in patient care.