To Rezūm or Not to Rezūm: A Narrative Review of Water Vapor Thermal Therapy for Benign Prostatic Hyperplasia
Abstract
Background/Objectives: Benign prostatic hyperplasia (BPH) is a common urological condition that can significantly impair quality of life in aging men by causing lower urinary tract symptoms (LUTS), including nocturia, weak stream, and incomplete emptying. While pharmacotherapy and surgical approaches such as transurethral resection of the prostate (TURP) remain cornerstone treatments, minimally invasive surgical therapies (MISTs) have emerged to bridge the gap between long-term medication use and invasive surgery. This narrative review assesses Rezūm therapy (water vapor thermal therapy, WVTT) by examining its mechanism of action, clinical efficacy, safety profile, and place in the BPH treatment algorithm. Methods: This narrative review synthesizes evidence from randomized controlled trials (RCTs), prospective studies, real-world cohorts, and published systematic reviews with meta-analyses to provide a comprehensive evaluation of Rezūm therapy for BPH. Key outcomes assessed include changes in International Prostate Symptom Score (IPSS), urinary flow rates, retreatment rates, adverse events, and sexual function preservation. Results: Across multiple studies, Rezūm significantly reduces IPSS (typically by ≥50%) and increases peak urinary flow by 4–5 mL/s. These improvements are durable, with five-year follow-up data showing low retreatment rates of approximately 4–5% and sustained symptom relief. The procedure, performed under local or minimal anesthesia, has a favorable…
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