Determinación del diámetro traqueal con ultrasonido y su relación con la fórmula de cálculo del tubo en niños de 1 a 12 años. Hospitales Vicente Corral Moscoso y José Carrasco Arteaga. Cuenca, 2020-2021

Abstract

Background: formulas used to determine the number of ETT are inaccurate, using new methods such as US seems promising. Objectives: to determine the tracheal diameter by ultrasound in children aged 1-12 years and its relationship with the formulas. Methods: observational, descriptive and cross-sectional study, January 2020 to December 2021, 140 patients aged 1 to 12 years undergoing scheduled and emergency surgery. The sample was based on: confidence level 95%, precision 5%, variance 0.2, inclusion criteria were met, sociodemographic and clinical variables were analyzed and as a result variable the correlation between the tracheal diameter determined by US with determined by formulas, the data were analyzed by descriptive statistics, using the mean, standard error, CI, standard deviation, Pearson's correlation and Pearson's r coefficient. Results: the following variables prevailed: age 3, 11 and 12 years (12.9%), male sex (69.3%), ASA I (73.6%), normal nutritional status (70.7%), showed that in the following groups there was no linear increase in tracheal diameter by US with respect to their age: 0-11 months 4.58 mm, with CI between 3.60 - 5.56 mm, 6 years 6.58 mm , with a CI between 5.67-7.49 mm, at 7 years 7.14 mm, with a CI between 6.24-8.05 mm and at 9 years 8.21 mm, with a CI between 7.67 -8.77mm It was correlated with the formulas and a Pearson's r coefficient of 82.2% was obtained. Conclusions: very high correlation.