High Power 980nm Diode Laser-preliminary Results in The Treatment of Benign Prostatic Hyperplasia

Keywords:Diode laser. 980 nm , Benign prostatic hyperplasia

OBJECTIVES: A clinical evaluation of the use of a 980 nm diode laser in the treatment of bladder outlet obstruction secondary to benign prostatic hyperplasia (BPH), focused on perioperatory morbidity and results in a short-term follow-up. METHODS: Fifteen patients were included in the study. All of them were evaluated by IPSS and Quality of Life (QoL) questionnaires, digital rectal examination, PSA, ul-trasound scan and uroflowmetry. Prostate vaporization was performed with a laser of diode at 980 nm (Inter-medic; Barcelona, Spain) using a 600 microns side-fire fiber. In the follow-up any event was recorded, as well as the IPSS and QoL scores and Qmax. RESULTS: Mean age of the patients was 66.7 years(45-75). The range of prostate volume was 20-76 cc (median 41.3 cc). Mean delivered energy was 161,012 kJ (78,3-243). No patient showed either a significant hematic loss or fluid absorption syndrome. A 22F urethral three-way catheter was inserted and removed between 12-40 hours in the postoperatory period. After a mean follow-up of 5,5 months (2-9) the average IPSS and QOL questionnaires scores changed, respectively, from 22,4 (19-26) and from 3 (2 -4) to an average of 6,8 (1 – 13) (p<0,01) and 1,4 (0 – 3), respectively, at the end of follow-up (p <0,01). Qmax increased from 6,4 ml/s (5-11,9) baseline to 19,7 ml/s (13,9-24 (p <0,01). No patient showed urinary incontinence. Retreatment was not nee-ded though three patients needed a short-time catheterization (24 hours) after developing acute urinary retention in the first 48h hours. CONCLUSIONS: Our preliminary results suggest that prostate vaporization using 980 nm diode laser with output power up to 120 W, is effective and associated to minimal morbidity. www.gigaalaser.com donna@gigaalaser.com