Determination of the tracheal diameter with ultrasound and its relationship with the tube calculation formula in children aged 1 to 12 years Original Research

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María José Serrano Oleas
Francisco Antonio Cevallos Sacoto

Abstract

Introduction: The formulas used to determine the number of endotracheal tubes (ETT) are inaccurate, so using new methods such as Ultrasound (US) seems promising. The objective of the present study was to determine the tracheal diameter in the US in children aged 1-12 years and to establish its relationship with the formulas.


Methods: This observational, descriptive, and cross-sectional study was carried out between January 2020 and December 2021 in 129 patients aged 1 to 12 years who underwent scheduled and emergency surgery. The sample was based on: a confidence level of 95%, a precision of 5%, a variance of 0.2, inclusion criteria were met, sociodemographic and clinical variables were analyzed, and as a result variable the correlation between the tracheal diameter was determined by the 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 (69.8%), ASA I (76.7%), normal nutritional status (76.7%); it was shown that in the following groups there was no linear increase in tracheal diameter by the US concerning their age: 3 years old, 5.54 mm, with CI between 5.17-5.92 mm, six years old, 6.58 mm, with a CI between 5.67-7.49 mm and ten years old. 7.94 mm, with a CI between 7.39-8.50 mm It was correlated with the formulas, and a Pearson's r coefficient of 80.2% was obtained.


Conclusions: It is possible to predict the size of an ETT based on ultrasonographic measurements prior to intubation in children aged 1 to 12 years.

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How to Cite
Serrano Oleas, M. J., & Cevallos Sacoto, F. A. (2022). Determination of the tracheal diameter with ultrasound and its relationship with the tube calculation formula in children aged 1 to 12 years: Original Research. Revista Ecuatoriana De Pediatría, 23(1), 11-20. https://doi.org/10.52011/144
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Original Articles
Author Biographies

María José Serrano Oleas, Departament of postgraduate in Anesthesia, Faculty of Medicine, Universidad de Cuenca

Doctor from the Catholic University of Cuenca (2015). Specialist in Anesthesiology from the University of Cuenca (2021).

Francisco Antonio Cevallos Sacoto, Departament of postgraduate in Anesthesia, Faculty of Medicine, Universida de Cuenca

Physician from the University of Cuenca (2010), Specialist in first degree in Anesthesiology and Resuscitation (Villa Clara University of Medical Sciences, Cuba, 2016). Postgraduate professor of anesthesiology at the University of Cuenca and treating doctor at the Vicente Corral Moscoso Hospital-Cuenca-Ecuador. Orcid https://orcid.org/0000-0001-7416-1956

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