Development and validation of a simulator for teaching minimally invasive thoracic surgery in Brazil

ABSTRACT Purpose To develop and validate a chest cavity simulator for teaching video-assited thoracic surgery (VATS). Methods The first phase of the study consisted of developing a chest cavity simulator. A quasi-experimental study was performed in the second phase, and 25 surgeons and residents par...

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Bibliographic Details
Published in:	Acta cirúrgica brasileira Vol. 36; no. 5
Main Authors:	Martins Neto, Francisco, Moura Júnior, Luiz Gonzaga de, Rocha, Hermano Alexandre Lima, Castro Neto, Josué Viana de, Lima, Alexandre Marcelo Rodrigues, Siqueira, Rafael Pontes de, Castillo, Daniela Lima Chow, Moura, Régis Luiz Sabiá de, Valente, Acrísio Sales
Format:	Journal Article
Language:	English
Published:	Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 01-01-2021
Subjects:	Education Medical Technical Skill Thoracic Surgery Video-Assisted
Online Access:	Get full text
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Summary:	ABSTRACT Purpose To develop and validate a chest cavity simulator for teaching video-assited thoracic surgery (VATS). Methods The first phase of the study consisted of developing a chest cavity simulator. A quasi-experimental study was performed in the second phase, and 25 surgeons and residents participated in a three-stage pulmonary suture experiment. The videos were recorded and timed. Generalized linear regression models for repeated measures were used to analyze the outcome change over time. Results The chest cavity simulator consists of a console simulating the left hemithorax. Among the participants, 96% rated the design, visual aspect, positioning ergonomics, and triangulation of the portals as very good or excellent (face validity). There was a decrease in suturing time in step 1 from 435.7 ± 105 to 355.6 ± 76.8 seconds compared to step 3 (p = 0.001). The evaluation of the simulation effectiveness and performance (content validity) was rated as very good or excellent by 96% ofparticipants. The most experienced surgeon showed significant reduction in procedure time (p = 0.021) (construct validity). Conclusions The thoracic cavity simulator is realistic, showing content and construct validity, and can be used in VATS training. The simulation model allowed skill gain in the endoscopic suture.
Bibliography:	Authors’ contributions: Substantive scientific and intellectual contributions to the study: Martins Neto F, Valente AS and Moura Júnior LG; Conception and design: Martins Neto F and Moura RLS; Acquisition of data: Martins Neto F and Castillo DLC; Analysis and interpretation of data: Martins Neto F and Rocha HAL; Technical procedures: Lima AMR and Siqueira RP; Statistical analysis: Rocha HAL; Manuscript preparation: Martins Neto F and Valente AS; Manuscript writing: Martins Neto F and Castillo DLC; Critical revision: Castro Neto JV; Final approval: Martins Neto F and Valente AS. Conflict of interest: Nothing to declare.
ISSN:	0102-8650 1678-2674
DOI:	10.1590/acb360508