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You are here: Home / Abstracts / Virtual Electrosurgery Skills Trainer (VEST TM ) Bipolar Energy Module May be Used with FUSE Curriculum to Improve Safety in Using Bipolar Devices

Virtual Electrosurgery Skills Trainer (VEST TM ) Bipolar Energy Module May be Used with FUSE Curriculum to Improve Safety in Using Bipolar Devices

Ganesh Sankaranarayanan, PhD1, Carlos Lopez, PhD2, Nicholas Milef2, Rehma Shabbir, MBBS1, Coleman Odlozil1, Darius Sherman1, Jaisa Olasky, MD3, Katerina Wells, MD1, Sanket Chauhan, MD1, James Fleshman, MD1, Suvranu De, ScD2, Daniel B Jones, MD4. 1Baylor University Medical Center at Dallas, 2Rensselaer Polytechnic Institute, 3Mt Auburn Hospital, 4Beth Israel Deaconess Medical Ccenter

INTRODUCTION: Bipolar energy can cause thermal injury to adjacent organs when used improperly. SAGES FUSE curriculum provides didactic knowledge on principles and best practices for safety, but there is no hands-on component to practice these skills.  The objective of this study is to compare the effectiveness of the VESTTM Bipolar training module in addition to the FUSE Curriculum.

METHODS AND PROCEDURES: The study was a mixed design with two groups, control and simulation. After a pre-test that assessed their baseline knowledge, the subjects were randomized to two groups. Both groups were given a 10 min presentation, reading materials from the FUSE manual and an online didactic module on bipolar energy. The simulation group also practiced on the simulator for one session that consisted of five trials on the effect of activation time on thermal damage and the importance of providing a margin of safety by sealing short gastric vessels. After one week the performance of both groups was assessed using a post-questionnaire. One week after the post-test both groups performed sealing of 10 vessels on an explanted porcine mesentery with vessels perfused. Their performance was videotaped and their activation times were recorded. A total safety score was calculated by assessing the proximity of the location of activation to the intestine by two independent raters. Wilcoxon – Signed Rank and Mann-Whitney U tests were used to assess difference within and between groups.

RESULTS: A total of 16 residents (8 in each group) participated in this IRB approved study. Median test scores for both groups increased (Simulation, p = 0.041 and Control, p = 0.027). No difference was found between the two groups in their pre-test (p = 1.0) and post-test (p = 0.955) scores indicating learning. The median total activation time for control group was higher (42.55 seconds) compared to simulation (30.6 seconds) but was not statistically significant (p = 0.336). There was a moderate agreement between two raters for margin of safety (kappa = 0.58, p < 0.001). Total safety scores showed no difference between the two groups (p = 0.573).

CONCLUSIONS: Subjects with simulation training had lower activation time compared to control. Training for margin of safety requires more simulation refinement. Small sample size and variations in the explanted models contributed to variability in data but even with small sample size, simulation training along with the FUSE curriculum trended towards being more beneficial than the FUSE curriculum alone.


Presented at the SAGES 2017 Annual Meeting in Houston, TX.

Abstract ID: 88379

Program Number: P303

Presentation Session: iPoster Session (Non CME)

Presentation Type: Poster

132

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