PD35-10 A PROSPECTIVE CASE COHORT STUDY DEMONSTRATES THAT LITHOVUETM, A SINGLE-USE FLEXIBLE DISPOSABLE URETEROSCOPE, REDUCES OPERATIVE TIME

Abstract

You have accessJournal of UrologyStone Disease: Surgical Therapy IV1 Apr 2017PD35-10 A PROSPECTIVE CASE COHORT STUDY DEMONSTRATES THAT LITHOVUETM, A SINGLE-USE FLEXIBLE DISPOSABLE URETEROSCOPE, REDUCES OPERATIVE TIME Manint Usawachintachit, Dylan Isaacson, Kazumi Taguchi, David Tzou, Ryan Hsi, Benjamin Sherer, Marshall Stoller, and Thomas Chi Manint UsawachintachitManint Usawachintachit More articles by this author , Dylan IsaacsonDylan Isaacson More articles by this author , Kazumi TaguchiKazumi Taguchi More articles by this author , David TzouDavid Tzou More articles by this author , Ryan HsiRyan Hsi More articles by this author , Benjamin ShererBenjamin Sherer More articles by this author , Marshall StollerMarshall Stoller More articles by this author , and Thomas ChiThomas Chi More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2017.02.1546AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES LithoVueTM (Boston Scientific), a novel single-use digital flexible ureteroscope, was released in January 2016. There are currently scant data regarding its performance in humans. Our center has been utilizing Lithovue as a primary ureteroscope for all cases since March 2016. Here we present procedural outcomes comparing LithoVue to reusable ureteroscopes in patients undergoing ureteroscopy for upper urinary tract pathology. METHODS Data from upper urinary tract ureteroscopy were prospectively collected for this case cohort study with 30 days of clinical follow up. Flexible reusable ureteroscope (URF-P6, Olympus) cases performed August 2014-April 2015 were compared to consecutive LithoVue cases performed March 2016-September 2016. Differences in procedural outcomes, operative times and time spent in hospital were analyzed using t-test, chi-square and Fisher's exact tests. RESULTS One hundred and fifteen cases utilizing LithoVue and 65 cases utilizing reusable ureteroscopes met criteria. For all patients, mean age at surgery was 53.8±14.4 years, males (51.1%) slightly predominated females, and mean BMI was 29.6±9.0 kg/m2. Most cases were conducted for removal of kidney or ureteral stones (78.9%), followed by diagnostic purposes (17.2%) and treatment of urothelial carcinoma (3.9%). Demographics, surgical indications, laterality, procedural outcomes, complications, as well as stone size, location, total burden, and composition were comparable between the LithoVue and reusable ureteroscope groups. For all cases, reusable scope procedures lasted 64.5±37.0 minutes compared to 54.1±25.7 minutes for LithoVue procedures (p <0.05) and for stone removal cases, 70.3±36.9 versus 57.3±25.1 minutes respectively (p <0.05). Scope failure occurred in 4.4% of LithoVue cases and 7.7% of reusable cases (p = 0.27). Using multivariate regression analysis, controlling for stone size, patient age, and BMI, the use of LithoVue was associated with a 14 and 15.5-minute reduction in procedure (p <0.05) and operating room durations (p <0.05) respectively. CONCLUSIONS We present a case-cohort study of the largest single-center experience with LithoVue to date. Our data suggest that LithoVue represents a feasible, safe alternative to reusable flexible ureteroscopes with a low rate of scope failure comparable to that of reusable scopes. Its use was associated with a significant, potentially cost-saving finding of shorter procedure and overall operating room duration. This finding warrants further investigation. © 2017FiguresReferencesRelatedDetails Volume 197Issue 4SApril 2017Page: e666 Advertisement Copyright & Permissions© 2017MetricsAuthor Information Manint Usawachintachit More articles by this author Dylan Isaacson More articles by this author Kazumi Taguchi More articles by this author David Tzou More articles by this author Ryan Hsi More articles by this author Benjamin Sherer More articles by this author Marshall Stoller More articles by this author Thomas Chi More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ...