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Updated: Jul 10, 2026
Photoselective Vaporesection of the Prostate via an End-firing Lithium Triborate Crystal Laser
Published on: May 9, 2018
High-power potassium-titanyl-phosphate or lithium triboride laser photoselective vaporization prostatectomy for
Carson Wong1, Motoo Araki, Jeremy B Tonkin
1Department of Urology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, USA. carson-wong@ouhsc.edu
Background And Purpose:
We describe a safe and reproducible technique for potassium-titanyl-phosphate (KTP) and lithium triboride (LBO) laser photoselective vaporization prostatectomy (PVP).
Technique:
With the patient under anesthesia in the dorsal lithotomy position, cystoscopy is performed. Using a high-power KTP/LBO laser system, a groove is created along the lateral-median lobe junction from the bladder neck to the verumontanum to delineate the margins of vaporization. The remainder of the ipsilateral lobe is vaporized using a series of overlapping passes along the length of the groove. The contralateral lobe is vaporized in a similar manner. Finally, the median lobe is vaporized from lateral to medial. A 20F urethral catheter is placed at the conclusion of the procedure.
Results:
This technique has been successful in 240 consecutive patients over an 18-month period.
Conclusion:
This systematic approach has been safe, effective, and reproducible for KTP/LBO laser PVP. It has become our standard technique for this procedure.
