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Assessment of Voiding Outcome, Sexual Function and Quality of Life Two Years following KTP/YAG Hybrid Laser Prostatectomy

Objective: To assess the long-term outcome of patients undergoing KTP/YAG hybrid laser treatment for bladder outlet obstruction due to benign prostatic enlargement, in terms of symptomatic relief, complications, sexual function, patient satisfaction and acceptance of procedure. Patients and Methods: The study recruited 148 patients prospectively. The hybrid laser treatment involved performing an initial bladder neck incision using KTP laser at 34 W followed by 4/6 point coagulation using NdYAG laser at 60 W. Patients were followed up till 2 years and assessed using uroflowmetry, International Prostate Symptom Score (IPSS), Patient Satisfaction Score (PSS), BPH impact index (BII) and the Danish Prostate Symptom Score (DAN-PSS) sexual function questionnaire. Results: 137 patients were followed up for 2 years. There was a significant improvement in the maximum flow rate, IPSS and Quality of Life Scale (QLS). The mean BII (2.9) and the mean PSS (1.9) were low suggesting overall satisfaction with the procedure. The complications included urethral stricture (0.73%), bladder neck obstruction (2.15%) and retreatment (3.6%). 79.4% had a significant decrease in the ejaculate and 32.8% had a significant change in the strength of erections. On comparing the two groups (sexual function affected vs. not affected), the age, BII, IPSS and PSS were significantly higher (p < 0.05) in the group of patients that were affected. Conclusions: Following KTP/YAG hybrid laser prostatectomy the outcome for voiding is good and durable for up to 2 years. The patient satisfaction level following the procedure is high and the procedure well accepted. However, significant interference with sexual function occurs, which appears to be occurring in tandem with a poor voiding outcome.