Validity of a Novel Chicken and Porcine Model for Laparoscopic Neobladder Reconstruction

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Abstract
Introduction: Simulation-based training in laparoscopic urology is essential, as these surgeries require a skill set different from routine urological procedures. We aim to describe and validate the chicken and porcine intestine model for laparoscopic neobladder reconstruction. Materials and Methods: Prospective observational study was conducted at our institute. Twenty novice and twenty trained laparoscopic surgeons were included in the study. The relevant chicken anatomy and surgical steps were described to all the surgeons. The surgeons were asked to fill a nine point questionnaire after completing the exercise, comprising of bowel organization, ability to do urethro neovesical anastomosis, suturing time, suturing similarity, quality of suturing, tissue feel, integrity of anastomosis, realism and usefulness of model after finishing the procedure and score it on a scale of 1–5. Time taken to perform the entire exercise was noted in addition. An independent expert observer retrospectively rated the urethro-neovesical anastomosis on a scale of 1-5. Results: All the participants in the study gave a mean score of 3.5 or more to all the questions asked in the questionnaire. Both the groups rated the usefulness of the model highly with a mean score of 4.6 and 4.45 respectively. The mean score of the questionnaire was 35.9 and 36 respectively for both the groups. The quality of urethro-neovesical anastomosis as observed by an expert was better in the expert group (P=0.001). Conclusion: The Chicken and porcine model for laparoscopic neobladder reconstruction is a useful and effective training tool. This model has Face, Content and construct validity to be used as a teaching and training tool in laparoscopic urology.

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