Su1613 Reuse of Medical Devices Labeled for Single Use: Accepting and Overcoming a Need As a Cost-Saving Measure in an ERCP Unit

ablation length and microscopic maximal injury depth of 10 watts using 33mm RFA electrode is significantly longer and deeper than 7 watts using 18mm electrode (24.3 2.0 vs. 18.5 3.3 mm,pZ0.015; 2.93 0.67 vs. 2.05 0.27 mm, pZ0.002). Microscopic ablation area(microscopic ablation length x maximal injury depth) of 10 watts is also significantly larger than 7 watts (55.0 13.3 vs. 36.5 8.0 mm, pZ0.015). However, there are no statistically differences of macroscopic/microscopic ablation related parameters according to target temperatures. In addition, the assessment of resected specimen at 24 hour after RFA did not show any perforation or bleeding. Conclusion: Endobiliary radiofrequency ablation with novel RFA catheter (ELRA ) successfully ablates the normal bile duct wall without complications in vivo swine model. The optimal power setting of radiofrequency ablation was 7-10 watts at target temperature of 75-80 C for 2 minutes. Further prospective human clinical studies are warranted in order to validate the effectiveness of EB-RFA treatment in patients with malignant biliary obstruction. Efficacy of endobiliary RFA according to power and electrode length Table 1. Patient Rad Category Fluoroscopic Time, min