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Contact fibre Nd:YAG laser for partial nephrectomy: experimental study in pigs
K Taari1, J O Salo, L Kivisaari
1Department of Urology, Helsinki University Central Hospital, Finland.
Urological Research
|January 1, 1993
Summary
The contact fibre Nd:YAG laser offers no definitive advantage over traditional steel scalpels for partial nephrectomy in pigs. While it reduced ligature use, it did not significantly improve operating time or reduce blood loss compared to conventional methods.
Area of Science:
- Urology
- Surgical Technology
- Nephrology
Background:
- Partial nephrectomy is a key procedure for kidney preservation.
- Evaluating novel surgical techniques is crucial for improving patient outcomes.
- The Nd:YAG laser is a potential tool for tissue ablation and hemostasis.
Purpose of the Study:
- To compare the efficacy and safety of a contact fibre Nd:YAG laser versus a steel scalpel for partial nephrectomy.
- To assess operative time, hemostasis, blood loss, and complication rates.
Main Methods:
- Thirty-two partial nephrectomies were performed on pigs using either a contact fibre Nd:YAG laser (10 W) or a steel scalpel.
- Procedures were conducted with or without renal pedicle clamping.
- Postoperative follow-up included abdominal ultrasound at 1 week and a 2-week observation period.
Main Results:
- The Nd:YAG laser achieved faster hemostasis (6.9 min vs 9.1 min, P=0.028) when the pedicle clamp was used.
- No significant difference in total operating time was observed between the laser and scalpel groups.
- Renal pedicle clamping significantly reduced blood loss in both groups, with a greater reduction in the laser group (61% vs 31%).
- The laser group required significantly fewer ligatures (3.7 vs 6.6, P=0.013).
- Similar rates of urinoma formation were observed (5 laser vs 4 scalpel).
Conclusions:
- The contact fibre Nd:YAG laser is a viable option for partial nephrectomy.
- However, it does not present a definitive advantage over the conventional steel scalpel technique.
- Further research may be needed to explore specific applications or optimize laser parameters.