PMID- 32791742 OWN - NLM STAT- MEDLINE DCOM- 20200821 LR - 20221005 IS - 1536-5964 (Electronic) IS - 0025-7974 (Print) IS - 0025-7974 (Linking) VI - 99 IP - 30 DP - 2020 Jul 24 TI - Water vapor thermal therapy for lower urinary tract symptoms secondary to benign prostatic hyperplasia: Systematic review and meta-analysis. PG - e21365 LID - 10.1097/MD.0000000000021365 [doi] LID - e21365 AB - BACKGROUND: Water vapor thermal therapy (WVTT) is a minimally invasive procedure for treatment of lower urinary tract symptoms secondary to benign prostatic hyperplasia (BPH). There are no known systematic reviews reporting the effectiveness and safety of this increasingly common BPH therapy. METHODS: We performed a systematic review and meta-analysis of studies utilizing WVTT for symptomatic BPH. The international prostate symptom score (IPSS), IPSS-quality of life (IPSS-QOL), BPH impact index (BPHII), and maximum flow rate (Qmax) were calculated as the weighted mean difference relative to baseline and reported in minimal clinically important difference (MCID) units. MCID thresholds were -3 for IPSS, -0.5 for IPSS-QOL, -0.5 for BPHII, and 2 mL/s for Qmax. The surgical retreatment rate was calculated using life-table methods. RESULTS: We identified 5 cohorts treated with WVTT from 4 studies (514 patients; 40% with median lobe obstruction) with 2 years median follow-up (range: 6 months to 4 years). The IPSS, IPSS-QOL, BPHII, and Qmax significantly improved at all intervals between 3 months and 4 years; this benefit ranged from 3.3 to 3.8 MCID units for IPSS, 3.9 to 4.6 MCID units for IPSS-QOL, 6.8 to 8.2 MCID units for BPHII, and 1.5 to 3.0 MCID units for Qmax. The surgical retreatment rate was 7.0% at 4 years of follow-up data. Most adverse events were nonserious and transient; dysuria, urinary retention, and urinary tract infection were most common. No cases of de novo erectile dysfunction occurred. CONCLUSIONS: WVTT provided improvement in BPH symptoms that exceeded established MCID thresholds, preserved sexual function, and was associated with low surgical retreatment rates over 4 years. FAU - Miller, Larry E AU - Miller LE AUID- ORCID: 0000-0003-1594-1885 AD - Miller Scientific, Johnson City, TN. FAU - Chughtai, Bilal AU - Chughtai B AD - Department of Urology, Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY. FAU - McVary, Kevin AU - McVary K AD - Center for Male Health, Department of Urology, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL. FAU - Gonzalez, Ricardo R AU - Gonzalez RR AD - Houston Methodist Hospital, Houston, TX. FAU - Rojanasarot, Sirikan AU - Rojanasarot S AD - Boston Scientific, Marlborough, MA. FAU - DeRouen, Kyle AU - DeRouen K AD - Boston Scientific, Marlborough, MA. FAU - Bhattacharyya, Samir AU - Bhattacharyya S AD - Boston Scientific, Marlborough, MA. LA - eng PT - Journal Article PT - Meta-Analysis PT - Systematic Review PL - United States TA - Medicine (Baltimore) JT - Medicine JID - 2985248R RN - 0 (Steam) SB - IM MH - *Ablation Techniques MH - Humans MH - Lower Urinary Tract Symptoms/etiology/*therapy MH - Male MH - Prostatic Hyperplasia/*complications MH - Steam PMC - PMC7387023 EDAT- 2020/08/15 06:00 MHDA- 2020/08/22 06:00 PMCR- 2020/07/24 CRDT- 2020/08/15 06:00 PHST- 2020/08/15 06:00 [entrez] PHST- 2020/08/15 06:00 [pubmed] PHST- 2020/08/22 06:00 [medline] PHST- 2020/07/24 00:00 [pmc-release] AID - 00005792-202007240-00088 [pii] AID - MD-D-20-01310 [pii] AID - 10.1097/MD.0000000000021365 [doi] PST - ppublish SO - Medicine (Baltimore). 2020 Jul 24;99(30):e21365. doi: 10.1097/MD.0000000000021365.