Observational studyRevista Brasileira de terapia intensiva2020
Does the endotracheal tube insertion depth predicted by formulas in children have a good concordance with the ideal position observed by X-ray?
Observational study in Revista Brasileira de terapia intensiva, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 10 citations in OpenAlex.
- Concordance Between Anthropometric Formula Predictions and Chest Radiograph-Confirmed Endotracheal Tube Depth in Young Infants: A Retrospective Cohort Study from Saudi Arabia.Journal of clinical medicine · 2026Article
- An interpretable machine learning model for predicting emergence agitation in children: a multicenter development and validation study.BMC anesthesiology · 2026Article
- Evaluation and comparison of oral endotracheal tube depth prediction formulas in children with scoliosis: a retrospective study.Frontiers in pediatrics · 2026Article
- New Formula for Depth of Insertion of Endotracheal Tube in Children: A Prospective Observational Study.Indian journal of pediatrics · 2024Observational
- Endotracheal tube placement using glottic depth marker in children.Indian journal of anaesthesia · 2023Article
- Predicting the risk of inappropriate depth of endotracheal intubation in pediatric patients using machine learning approaches.Scientific reports · 2023Article
- Development and internal validation of an equation using anthropometric measures to predict correct endotracheal tube insertion depth.Canadian journal of respiratory therapy : CJRT = Revue canadienne de la therapie respiratoire : RCTR · 2022Article
- Machine learning model for predicting the optimal depth of tracheal tube insertion in pediatric patients: A retrospective cohort study.PloS one · 2021Article
- Variation in endotracheal tube length distal to depth marking in pediatrics: A need for standardization.Journal of anaesthesiology, clinical pharmacologyArticle
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3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate the effectiveness of the different formulas for estimating the insertion depth of an endotracheal tube in children.
methodsThis was an observational and cross-sectional study that included children between 29 days and 2 years of age who were hospitalized in a pediatric intensive care unit and mechanically ventilated. The formulas based on height [(height/10) + 5], the inner diameter of the tube (endotracheal tube × 3), and weight (weight + 6) were evaluated to determine which of them showed better concordance with the ideal insertion depth of the endotracheal tube as evaluated by X-ray.
resultsThe correlation between the height-based calculation and the ideal depth observed on X-ray was strong, with r = 0.88, p < 0.05, and a concordance correlation coefficient of 0.88; the correlation between the weight-based calculation and depth on X-ray was r = 0.75, p < 0.05, and concordance correlation coefficient 0.43; and the correlation between endotracheal tube diameter-based calculation and depth on X-ray was r = 0.80, p < 0.05, and concordance correlation coefficient 0.78. Lin's concordance correlation analysis indicated that the measurements showed weak concordance (< 0.90).
conclusionThe formulas that estimate the insertion depth of the endotracheal tube in children were not accurate and were discordant with the gold-standard method of X-ray evaluation. There is a need for a new method based on anthropometric variables (weight and height) and age that is effective in guiding health professionals of pediatric intensive care units at the time of intubation.
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