ELITE--the ex vivo training unit for NOTES: development and validation.

Area of Science:

• Surgical Education and Training
• Medical Simulation Technology
• Minimally Invasive Surgery

Background:

• Current surgical simulators often focus on single procedures (laparoscopic or endoscopic).
• There is a need for versatile training models that accommodate complex procedures like hybrid surgery and Natural Orifice Transluminal Endoscopic Surgery (NOTES).
• Existing models lack realistic physiological simulation, such as respiratory motion.

Purpose of the Study:

• To integrate respiration simulation and electro dissection capabilities into the ELITE (endoscopic-laparoscopic interdisciplinary training entity) system.
• To evaluate the effectiveness and user acceptance of these new features in surgical training.
• To further validate ELITE as a comprehensive training tool for various minimally invasive procedures.

Main Methods:

• The ELITE system, a full-size synthetic human torso replica, was enhanced with latex balloons simulating diaphragmatic respiration.
• Electro dissection was implemented for procedures like cholecystectomy and appendectomy.
• Novice and expert surgeons trained NOTES procedures on the enhanced model, with performance and subjective feedback evaluated.

Main Results:

• Respiration simulation and electro dissection were successfully integrated into the ELITE training system.
• All participants demonstrated a significant learning curve, with experts reliably distinguished from novices.
• 97% of subjects found the ELITE simulator useful for NOTES training, validating its efficacy.

Conclusions:

• The enhanced ELITE system provides a realistic and effective platform for training laparoscopic, hybrid, and NOTES procedures.
• The integration of respiratory motion and electro dissection significantly improves training fidelity.
• ELITE serves as a valuable, cost-effective alternative to animal models for foundational surgical skill acquisition.