Orotracheal intubation with 3-D videolaryngoscope, conventional videolaryngoscope and direct laryngoscopy: comparative study on a pediatric mannequin

• Grant number: 20/09312-9
• Support Opportunities: Regular Research Grants
• Start date: March 01, 2023
• End date: February 28, 2025
• Field of knowledge: Health Sciences - Medicine - Maternal and Child Health
• Principal Investigator: Joelma Gonçalves Martin
• Grantee: Joelma Gonçalves Martin
• Host Institution: Faculdade de Medicina (FMB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil
• Associated researchers: José Roberto Fioretto ; Norma Sueli Pinheiro Módolo

Abstract

Videolaryngoscopes (VL) are devices that help orotracheal intubation (OTI) in pediatric patients, being indicated in different situations, such as in difficult airways, limited cervical movement or in intubation of patients with suspected or confirmed SARS- coronavirus infection. CoV-2. Their availability in services is limited by their high costs. Assembling a 3D video laryngoscope using a blade print associated with the borescope can make the equipment cheaper and help overcome this difficulty. OBJECTIVE: To compare the VL via 3D printing associated with a borescope with the traditional video laryngoscope and direct laryngoscopy, on a pediatric mannequin, with and without difficult airway simulation, regarding the time and success of the IOT. METHOD: Experimental study with a pediatric simulation mannequin, with the participation of physicians with different levels of training and experience in intubation via direct laryngoscopy and video laryngoscopy. After training, IOT will be proposed in 6 different scenarios, using 3 devices (videolaryngoscope via 3D printing, traditional videolaryngoscope and direct laryngoscopy) and simulating normal and difficult airway on a pediatric mannequin. The following variables will be evaluated: time for intubation, time for better glottic visualization, number of attempts required for intubation, best glottic visualization according to Cormack Lehane classification and the need to use maneuvers to improve visualization. Each participant will answer a short questionnaire. Comparison of means will be done using ANOVA followed by Tukey's multiple comparison test for measures with normal distribution for each scenario and for the volunteers. Qualitative variables, associations between scenarios and outcomes will be assessed by chi-square test or proportion comparison tests. (AU)