The One Year Outcome after KTP Laser Vaporization of the Prostate According to the Calculated Vaporized Volume.
10.3346/jkms.2009.24.6.1187
- Author:
Ja Hyeon KU
1
;
Jeong Yeon CHO
;
Sung Yong CHO
;
Soo Woong KIM
;
Jae Seung PAICK
Author Information
1. Department of Urology, Seoul National University Hospital, Seoul, Korea. jspaick@snu.ac.kr
- Publication Type:Original Article
- Keywords:
Prostate;
Prostatic Hyperplasia;
Vaporization;
Laser Therapy
- MeSH:
Aged;
Aged, 80 and over;
Humans;
Laser Therapy/*methods;
Lasers, Solid-State/*therapeutic use;
Male;
Middle Aged;
Patient Satisfaction;
Prostate/pathology/*surgery;
Quality of Life;
Transurethral Resection of Prostate/*methods;
Treatment Outcome;
Volatilization
- From:Journal of Korean Medical Science
2009;24(6):1187-1191
- CountryRepublic of Korea
- Language:English
-
Abstract:
The aim of this study was to develop a new simple method for measuring the vaporized volume and to evaluate the outcome of high-power potassium-titanyl-phosphate (KTP) photoselective laser vaporization. A total of 65 patients, with a mean age of 67.7 yr (range 53 to 85), were included in the primary analysis. The vaporized volume was calculated as the pre-operative volume minus the immediate post-operative volume plus the volume of the defect. For all patients, the subjective and objective parameters improved significantly after surgery. Six and 12 months after surgery, the group with a smaller vaporized volume (<15 g) had a lower reduction of the mean International Prostate Symptom Score (P=0.006 and P=0.004) and quality of life index (P=0.006 and P=0.004) when compared to the group with a greater vaporized volume (> or =15 g). There were no differences in the change of the maximum flow rate and post-void residual based on the vaporized volume. Our findings suggest that the subjective improvement, after a high-power KTP laser vaporization, may be dependent on the vaporized volume obtained after the procedure.
