Laser Vaporization of Bovine Prostate: A Quantitative Comparison of Potassium-Titanyl-Phosphate and Lithium Triborate Lasers

Abstract

In vitro the lithium triborate GreenLight HPS 120 W laser vaporizes bovine prostate far more efficiently than the KTP photoselective vaporization laser but coagulates it equally well. These favorable outcomes must be validated in vivo.

In vitro investigation of wavelength‐dependent tissue ablation: Laser prostatectomy between 532 nm and 2.01 µm

“…Regardless of wavelength, TS ¼ 4 mm/seconds maximized the ablation rate, and at a slower and faster TS than 4 mm/seconds, the rate decreased. This finding mirrors a previous study [12] showing that too slow (i.e., excessive energy application) and too rapid (i.e., insufficient time for light absorption and eventual heat accumulation) a TS leads to less efficient tissue ablation. and width eff increased with energy, indicating that larger ablation volume resulted from a deeper and wider ablation crater.…”

Lithium Triborate Laser Vaporization of the Prostate Using the 120 W, High Performance System Laser: High Performance All the Way?

“…The 120W HPS-laser has been shown to be 50% to 100% more efficient than the 80W KTP-laser invitro. [25][26][27] Fibre destruction and loss of power output observed in the present investigation are less vigorous than reported after KTP-LV. 13 This illustrates that not only the ablative capacity but also the performance throughout the procedure significantly differs between the two lasers.…”

Can We Predict the Outcome of 532 nm Laser Photoselective Vaporization of the Prostate? Time to Event Analysis

“…19 In contrast, we found a similar E/P ratio and vaporization rate. A higher intraoperative bleeding rate with more need to use energy for coagulation during PVP with the HPS laser may explain our findings.…”