In Vitro Assessment of Ultrasonic Lithotriptors
2003; Lippincott Williams & Wilkins; Volume: 170; Issue: 4 Part 1 Linguagem: Inglês
10.1097/01.ju.0000088021.44446.d7
ISSN1527-3792
AutoresRamsay L. Kuo, Ryan F. Paterson, Tibério M. Siqueira, Andrew P. Evan, James A. McAteer, James C. Williams, James E. Lingeman,
Tópico(s)Gallbladder and Bile Duct Disorders
ResumoNo AccessJournal of UrologyCLINICAL UROLOGY: Original Articles1 Oct 2003In Vitro Assessment of Ultrasonic Lithotriptors RAMSAY L. KUO, RYAN F. PATERSON, TIBÉRIO M. SIQUEIRA, ANDREW P. EVAN, JAMES A. McATEER, JAMES C. WILLIAMS, and JAMES E. LINGEMAN RAMSAY L. KUORAMSAY L. KUO More articles by this author , RYAN F. PATERSONRYAN F. PATERSON More articles by this author , TIBÉRIO M. SIQUEIRATIBÉRIO M. SIQUEIRA More articles by this author , ANDREW P. EVANANDREW P. EVAN Financial interest and/or other relationship with Boston Scientific. More articles by this author , JAMES A. McATEERJAMES A. McATEER More articles by this author , JAMES C. WILLIAMSJAMES C. WILLIAMS More articles by this author , and JAMES E. LINGEMANJAMES E. LINGEMAN Financial interest and/or other relationship with Boston Scientific, Lumenis, TherMatrix, Olympus, Storz, Midwest Mobile Lithotripsy LP, Progressive Thermotherapy LP and Midstate Mobile Lithotripsy LP. More articles by this author View All Author Informationhttps://doi.org/10.1097/01.ju.0000088021.44446.d7AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: Ultrasonic lithotriptors are commonly used to fragment and remove stones during percutaneous nephrolithotomy. To date a comparative assessment of current units has not been accomplished without potential operator bias. An objective testing environment is required for optimal appraisal of the efficiency of ultrasonic lithotriptors. Materials and Methods: An in vitro test system was devised to evaluate the ability of ultrasonic lithotriptors to core through artificial stones. The system consisted of an irrigation sheath (Cook Urological, Spencer, Indiana) through which ultrasonic probes were placed. Ultrasonic hand pieces and probes were secured in an upright position. An Ultracal-30 (U.S. Gypsum, Chicago, Illinois) stone cylinder (mean length 12.8 ± 0.6 mm, mean diameter 7.6 ± 0.07 mm) was centered on the probe tip. A weight (62.7 gm) was placed atop the stone to provide a constant force. We evaluated the Olympus LUS-1 and LUS-2 (Olympus, Melville, New York), Circon-ACMI USL-2000 (Circon-ACMI, Southborough, Massachusetts), Karl Storz Calcuson (Karl Storz, Culver City, California) and Richard Wolf model 2271.004 (Richard Wolf, Vernon Hills, Illinois). All probes had outer diameters of 3.4 mm except for the Circon-ACMI unit (3.8 mm). Using 100% power settings times for complete stone penetration were assessed for all units. Differences in mean stone penetration times were compared using ANOVA. Results: The Olympus LUS-2 had the fastest mean stone penetration time (28.8 ± 2.7 seconds). This value was used to normalize the data into efficiency ratios, where other unit times were expressed as multiples of the LUS-2 time: Olympus LUS-2 (1.0 ± 0.1) equals Circon-ACMI USL-2000 (1.1 ± 0.3) greater than Karl Storz Calcuson (1.4 ± 0.3) greater than Olympus LUS-1 (2.1 ± 0.5) greater than Richard Wolf (3.6 ± 0.8). Efficiencies of the LUS-2 and USL-2000 units were essentially equivalent, with all others significantly less efficient (p <0.05). Conclusions: This new in vitro testing model provides an objective, reproducible method for evaluating the efficiency of intracorporeal lithotriptors. Of the units tested the Olympus LUS-2 and Circon-ACMI USL-2000 were the most efficient. References 1 : Percutaneous ultrasonic lithotripsy. AJR Am J Roentgenol1984; 143: 785. Google Scholar 2 : Percutaneous approach to nephrolithiasis. AJR Am J Roentgenol1985; 144: 451. Google Scholar 3 : Percutaneous ultrasonic lithotripsy. Urology1984; 23: 7. 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Google Scholar From the Methodist Hospital Institute for Kidney Stone Disease and Indiana University School of Medicine (RLK, RFP, TMS, Jr, JEL), and the Department of Anatomy and Cell Biology, Indiana University School of Medicine (APE, JAM, JCW), Indianapolis, Indiana© 2003 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited byYang H, Zhao P, Su D, Patel N, Monga M and Seftel A (2016) Impact of Stone Density on Percutaneous Nephrolithotomy Outcomes with a Dual Frequency Ultrasonic Lithotripter: Computerized Tomography Based Outcomes at a Low Volume CenterUrology Practice, VOL. 3, NO. 5, (393-398), Online publication date: 1-Sep-2016.Kim S, Matlaga B, Tinmouth W, Kuo R, Evan A, McAteer J, Williams J and Lingeman J (2018) In Vitro Assessment of a Novel Dual Probe Ultrasonic Intracorporeal LithotriptorJournal of Urology, VOL. 177, NO. 4, (1363-1365), Online publication date: 1-Apr-2007.AUGE B, SEKULA J, SPRINGHART W, ZHU S, ZHONG P and PREMINGER G (2018) IN VITRO COMPARISON OF FRAGMENTATION EFFICIENCY OF FLEXIBLE PNEUMATIC LITHOTRIPSY USING 2 FLEXIBLE URETEROSCOPESJournal of Urology, VOL. 172, NO. 3, (967-970), Online publication date: 1-Sep-2004. Volume 170Issue 4 Part 1October 2003Page: 1101-1104 Advertisement Copyright & Permissions© 2003 by American Urological Association, Inc.Keywordslithotripsy, ultrasonographynephrostomy, percutaneousMetricsAuthor Information RAMSAY L. KUO More articles by this author RYAN F. PATERSON More articles by this author TIBÉRIO M. SIQUEIRA More articles by this author ANDREW P. EVAN Financial interest and/or other relationship with Boston Scientific. More articles by this author JAMES A. McATEER More articles by this author JAMES C. WILLIAMS More articles by this author JAMES E. LINGEMAN Financial interest and/or other relationship with Boston Scientific, Lumenis, TherMatrix, Olympus, Storz, Midwest Mobile Lithotripsy LP, Progressive Thermotherapy LP and Midstate Mobile Lithotripsy LP. More articles by this author Expand All Advertisement PDF downloadLoading ...
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