Back to 2014 Annual Meeting Posters

OBJECTIVES:
Nowadays the aortic valve replacement(AVR) in minimal invasive technique is used increasingly because quick postoperative recovery and cosmetic results. Therefore we propose low-fidelity trainer for cardiac trainees and junior surgeons to reduce the learning curve in key hole surgery.
METHODS:
Low-fidelity trainer is designed from a box, in which we inserted aortic root models. The models were made from self-moulded Silicon. The diameters and measurements are made to simulate the real work environment. The design steps is described in this study. 6 cardiothoracic surgery trainees used the simulator for 3 days. The procedures were performed according multimedia guideline. The results were reviewed by a senior surgeon.
RESULTS:
The usage of the simulator results in cannulation of the aorta and right atrium in key hole circumstances. Providing the simulator with aortic substitute lead to performing of all AVR techniques involving interrupted, semi-continuous, continuous and sutureless AVR, The time taken to perform the procedures improved by 30-40% after 3 days. The needle direction and angle were scored according an assessment sheet. Closure of the Aortotomy was done successfully in single and double layer fashion.
CONCLUSIONS:
The low-fidelity Trainer may improve the surgical skills in minimal invasive aortic valve replacement. The familiarity and repetition in performing of surgical procedures results in shortening the learning curve and in reducing the time consumed in the operation room.