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Construct validity of an inanimate training model for laparoscopic appendectomy.

Omaira Rodriguez1, Alexis Sanchez-Ismayel, Renata Sanchez

  • 1Robotic and minimally invasive surgery center (CIMI). La Floresta medical Institute. Caracas, Venezuela, Central University of Venezuela; Surgery Department III, University Hospital of Caracas, Caracas, Venezuela; Avenida Principal de Santa Sofía, Torre Alfa, Piso 9, Consultório 9C, Santa Sofía, El Cafetal, Caracas, Miranda 1061, Venezuela. r_omaira@hotmail.com.

JSLS : Journal of the Society of Laparoendoscopic Surgeons
|September 11, 2013
PubMed
Summary

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This study validates an inanimate laparoscopic appendectomy model. The model effectively differentiates surgical skill levels, proving useful for training and evaluating surgical residents.

Area of Science:

  • Surgical Education
  • Medical Simulation
  • Laparoscopic Surgery Training

Background:

  • Laparoscopic surgery training models offer a safe practice environment.
  • Assessing surgical skill acquisition is crucial for resident development.

Purpose of the Study:

  • To determine the construct validity of an inanimate laparoscopic appendectomy model.
  • To evaluate the model's ability to differentiate between varying levels of surgical expertise.

Main Methods:

  • Three groups of surgeons (experts, intermediates, novices) performed an appendectomy on the model.
  • Performance was assessed using the Global Operative Assessment of Laparoscopic Skills (GOALS) score and procedure time.
  • Data were analyzed using analysis of variance.

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Main Results:

  • Experts achieved significantly higher GOALS scores than intermediate and novice surgeons.
  • Experts completed the procedure in significantly less time compared to other groups.
  • The model demonstrated clear discrimination between different expertise levels.

Conclusions:

  • The inanimate laparoscopic appendectomy model possesses construct validity.
  • This model is a valuable tool for surgical resident training and performance evaluation.