MP51-17 INITIAL EXPERIENCE OF TRANSURETHRAL BLUE LASER VAPORIZATION OF PROSTATE USING A NOVEL DUAL WAVELENGTH LASER SYSTEM

Abstract

You have accessJournal of UrologyCME1 Apr 2023MP51-17 INITIAL EXPERIENCE OF TRANSURETHRAL BLUE LASER VAPORIZATION OF PROSTATE USING A NOVEL DUAL WAVELENGTH LASER SYSTEM Lin Yang, Zhihui Zou, Xiaofeng Xu, Weimin Gan, Liyue Mu, and Dalin He Lin YangLin Yang More articles by this author , Zhihui ZouZhihui Zou More articles by this author , Xiaofeng XuXiaofeng Xu More articles by this author , Weimin GanWeimin Gan More articles by this author , Liyue MuLiyue Mu More articles by this author , and Dalin HeDalin He More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000003299.17AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: Our preclinical study confirmed that compared with the commonly used 532 nm, 980 nm and 1470 nm lasers, under the same power, the 450 nm laser has the advantages of higher vaporization efficiency, thinner coagulation layer and lower noise, theoretically it’s more suitable for BPH surgery. In this study, we reported the initial experience of transurethral blue laser vaporization of prostate (BLVP). METHODS: The novel blue laser surgical system is a dual wavelength laser system, which output 450 nm laser (Max: 200 W) and 976 nm laser (Max: 50 W), which are respectively used for tissue vaporization and coagulation by foot switch. Between May and September 2022, four centers were selected to perform BLVP using this novel blue laser surgical system and photo-selective prostate vaporization (PVP) was served as control with the patients ratio of 1:1. The international prostate symptom score (IPSS), Quality of life (QoL), maximum urinary flow rate (Qmax) before and 1 month after operation were collected, and also the operation time and bleeding. The evaluation of blue and green laser surgery from 8 operators was also collected. RESULTS: Total 101 BPH patients were enrolled and 51 received BLVP, 50 received PVP, 8 cases of PVP and 3 cases of BLVP convert to transurethral resection of prostate (TURP) mainly due to uncontrollability bleeding, the other 90 patients completed the follow-up. The novel 200 W 450 nm laser vaporized visible more rapidly than PVP. In surgeons with PVP experience, they found it’s easier to perform BLVP than PVP duo to the reliable hemostatic function by 976 nm laser. In surgeons with no PVP experience, it took 3-5 operations to overcome the desire of "TURP conversion" for BLVP and 5-10 operations for PVP. There was no significant difference between the two groups in baseline data, IPSS, QoL, Qmax and bleeding before and after operation, however, there were no difference of the operation time between two groups. The mainly reason was the power of the blue laser is very strong, which can lead to "bursting" of optical fiber once touch the tissue. It took about 10-20 operations to adapt to this "non-contact" vaporization mode. CONCLUSIONS: The novel blue laser surgical system has high vaporization efficiency, rapid and reliable hemostasis, therefore safe and effectiveness, and easy to learn. Source of Funding: None © 2023 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 209Issue Supplement 4April 2023Page: e700 Advertisement Copyright & Permissions© 2023 by American Urological Association Education and Research, Inc.MetricsAuthor Information Lin Yang More articles by this author Zhihui Zou More articles by this author Xiaofeng Xu More articles by this author Weimin Gan More articles by this author Liyue Mu More articles by this author Dalin He More articles by this author Expand All Advertisement PDF downloadLoading ...