TY - JOUR
T1 - MP38-04 IMPACTED STONE MODEL USED TO COMPARE HYDROPHILIC GUIDEWIRE EFFICACY
AU - Faaborg, Daniel
AU - Khouri, Jacob
AU - Myklak, Kristene
AU - Alsyouf, Muhannad
AU - Baldwin, Duane
N1 - DISCLOSURES: The American Urological Association (AUA) is committed to maintaining transparency in its relationships. The AUA requires that individuals make full disclosures for themselves, their family and/or business partner of relationships, business transactions, leadership positions, presentations or publications prior to participating in AUA activities. All relevant relationships for the last 12 months should be disclosed.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - INTRODUCTION AND OBJECTIVES: Guide wire passage beyond impacted stones is the first step of either stone treatment or decompression of infected obstructed systems. The optimal guidewire for use with impacted ureteral stones has not been previously determined. The purpose of this study was to develop an in-vitro impacted ureteral stone model and to use this model to compare efficacy between several commercially available guide wires. METHOD(S): An in-vitro impacted ureteral stone model was constructed to simulate actual ureteral diameter, length, and angulation. Next, a calcium oxalate monohydrate stone was placed into the ureter and impacted to resist passage of fluid at 300 mm Hg. A ureteral catheter was positioned 2 cm below the impacted stone. In a randomized single blinded fashion, five attending urologists tested the model using 0.038 inch versions of the angle-tipped ZIPwire (Boston Scientific), angle-tipped Glidewire (Terumo), angle-tipped Hiwire (Cook), straight-tipped Roadrunner hydrophilic PC (Cook), and the straight-tipped Standard Teflon coated wire (Cook). In addition, in a separate benchtop trial the force required to pass the impacted stone was measured. Outcomes included time for wire passage (sec), number of attempts, force required for wire passage and attending blinded subjective preference ratings. An Independent-Samples Kruskal-Wallis test was used for statistical analysis, with p
AB - INTRODUCTION AND OBJECTIVES: Guide wire passage beyond impacted stones is the first step of either stone treatment or decompression of infected obstructed systems. The optimal guidewire for use with impacted ureteral stones has not been previously determined. The purpose of this study was to develop an in-vitro impacted ureteral stone model and to use this model to compare efficacy between several commercially available guide wires. METHOD(S): An in-vitro impacted ureteral stone model was constructed to simulate actual ureteral diameter, length, and angulation. Next, a calcium oxalate monohydrate stone was placed into the ureter and impacted to resist passage of fluid at 300 mm Hg. A ureteral catheter was positioned 2 cm below the impacted stone. In a randomized single blinded fashion, five attending urologists tested the model using 0.038 inch versions of the angle-tipped ZIPwire (Boston Scientific), angle-tipped Glidewire (Terumo), angle-tipped Hiwire (Cook), straight-tipped Roadrunner hydrophilic PC (Cook), and the straight-tipped Standard Teflon coated wire (Cook). In addition, in a separate benchtop trial the force required to pass the impacted stone was measured. Outcomes included time for wire passage (sec), number of attempts, force required for wire passage and attending blinded subjective preference ratings. An Independent-Samples Kruskal-Wallis test was used for statistical analysis, with p
UR - https://www.auajournals.org/article/S0022-5347(15)01690-0/fulltext
UR - http://www.jurology.com/article/S0022-5347(15)01690-0/fulltext
UR - https://www.mendeley.com/catalogue/c3a9e950-cd7b-3154-861b-416410f57a00/
U2 - 10.1016/J.JURO.2015.02.1379
DO - 10.1016/J.JURO.2015.02.1379
M3 - Meeting abstract
VL - 193
JO - The Journal of Urology
JF - The Journal of Urology
IS - 4S
ER -