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Holmium: YAG laser prostatectomy canine feasibility study
1Urology Laboratories, Palo Alto Veterans' Affairs Medical Center, Stanford University School of Medicine, California 94305, USA.
Lasers in Surgery and Medicine
|January 1, 1996
Summary
The Holmium: Yttrium-Aluminum-Garnet laser can effectively vaporize prostate tissue, creating immediate defects for benign prostatic hyperplasia treatment. This laser shows promise for reducing recovery times in surgical procedures.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Laser Technology
Background:
- Benign prostatic hyperplasia (BPH) is a common condition requiring treatment.
- Neodymium: Yttrium-Aluminum-Garnet laser coagulation prostatectomy is an established BPH treatment.
- Laser vaporization may offer reduced recovery times compared to traditional methods.
Purpose of the Study:
- To evaluate the Holmium: Yttrium-Aluminum-Garnet laser's ability to vaporize prostate tissue.
- To assess the creation of immediate prostatectomy defects using this laser wavelength.
Main Methods:
- In vivo study using a canine prostate model.
- Endoscopic delivery of Holmium: Yttrium-Aluminum-Garnet laser energy.
- High energy settings (up to 2.8 J/pulse, 60 W) were applied.
Main Results:
- Holmium laser demonstrated feasible and efficient prostate tissue ablation/vaporization.
- Prostatic defects averaged 19 mm transversely, with a maximum of 27 mm.
- Adequate hemostasis and a 1-2 mm coagulation rim were observed.
Conclusions:
- Holmium: Yttrium-Aluminum-Garnet laser effectively vaporizes prostate tissue acutely.
- This laser wavelength warrants further investigation for BPH surgical treatment.