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Feasibility of water vapor thermal therapy for treating lower urinary tract symptoms in men with localized prostate cancer on active surveillance: a case series

M. Babar, Farooz Babar, N. Hawks-Ladds, J. Loloi, M. Ciatto

The Canadian journal of urology, 2026

Abstract

BACKGROUND

Prostate cancer is a common malignancy, with many men on active surveillance for localized, low-risk disease also experiencing lower urinary tract symptoms (LUTS) from benign prostatic hyperplasia (BPH). Water Vapor Thermal Therapy (WVTT) is a minimally invasive BPH treatment, but its safety and efficacy in this setting are unclear.

CASE DESCRIPTION

We report three men with localized PCa on active surveillance who underwent WVTT for LUTS.

CONCLUSIONS

WVTT appears safe and potentially effective in treating LUTS, especially in those with lower-risk disease and smaller prostate volumes. Further research is needed to confirm safety, efficacy, and optimal patient selection.

How strong is the evidence?

Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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