Evaluation and comparison of oral endotracheal tube depth prediction formulas in children with scoliosis: a retrospective study - Takeaways - MDSpire

Evaluation and comparison of oral endotracheal tube depth prediction formulas in children with scoliosis: a retrospective study

  • By

  • Yangyang Zhang

  • Peng Gao

  • Qingshui Zheng

  • Bo Zhu

  • June 1, 2026

  • 0 min

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  • 1

    The study evaluated pediatric endotracheal tube (ETT) depth prediction methods in children with scoliosis undergoing corrective surgery.

  • 2

    Height was the strongest predictor of ETT depth, with the Height/10 + 5 formula showing the smallest mean absolute error.

  • 3

    Regression-derived formulas improved prediction accuracy but did not outperform the Height/10 + 5 formula in this cohort.

  • 4

    Tracheal length measured by x-ray had limited predictive power and should only be used as an adjunct in determining ETT depth.

  • 5

    The findings aim to enhance anesthesiologists' ability to predict intubation depth in children with scoliosis, addressing a significant evidence gap.

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