Budget impact analysis of transurethral water vapor therapy for treatment of lower urinary tract symptoms associated with benign prostatic hyperplasia in the Spanish national healthcare system.

Background: Several surgical treatments are available for managing lower urinary tract symptoms secondary to benign prostatic hyperplasia (LUTS/BPH). Water vapor thermal therapy (WVTT) is a new minimally invasive therapy. This study estimates the budget impact of introducing WVTT for LUTS/BPH into the Spanish health care system.

Methods: A model simulated the evolution of men over 45 years of age with moderate-severe LUTS/BPH after surgical treatment, over a 4-year time horizon, from the Spanish public health care service´s perspective. The technologies in scope included those most used in Spain: WVTT, transurethral resection (TURP), photoselective laser vapourization (PVP) and holmium laser enucleation (HoLEP). Transition probabilities, adverse events and costs were identified from the scientific literature and validated by a panel of experts. Sensitivity analyses were performed by varying the most uncertain parameters.

Results: Per intervention, WVTT resulted in savings of €3,317, €1,933 and €2,661 compared to TURP, PVP and HoLEP. Over a 4-year time horizon, when performed in 10% of the cohort of 109,603 Spanish males with LUTS/BPH, WVTT saved €28,770,125 against the scenario without WVTT availability.

Conclusions: WVTT could reduce the cost of managing LUTS/BPH, increase the quality of health care and reduce the length of procedure and hospital stay.