Predicting dog tracheal diameter and length: A tool for improved intubation

Authors

  • Maneenooch Khiao in Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
  • Suppada Kananub Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Nakornpathom, Thailand
  • Tepyuda Sritrakul Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Nakornpathom, Thailand
  • Pattarawadee Thamsatit Critical Care Unit, Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
  • Sirin Theerawatanasirikul Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
  • Naparee Srisowanna Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand

Keywords:

Endotracheal tube; dogs; formula; tracheal diameter; tracheal length

Abstract

Objective: This study aims to develop formulas for estimating tracheal diameter and length in dogs using easily measurable anatomical parameters.

Materials and Methods: The samples consisted of 20 dogs of various breeds, comprising 10 males and 10 females, sourced from cadavers. The measured parameters included occipital tuberosity to tail base (OT), eye angle to ear tragus, nose to ear tragus, inner vertical diameters (IVD), and tracheal length (TL). The study conducted correlation and linear regression analyses, and subse­quently, the formulated models underwent validation using 16 live dogs. The results were com­pared to radiographic measurements.

Results: Linear regression recommended formulas based on OT, resulting in IVD (mm) = 0.203 × OT – 3.724 (r2 = 0.608, p < 0.001) and TL (cm) = 0.346 × OT–3.773 (r2 = 0.837, p < 0.001). The predicted tracheal diameter and length from formulas were slightly smaller than radiographic measurements (IVD = 2.76 ± 1.85 mm, p < 0.0001 and TL = 2.07 ± 1.81 cm, p < 0.0001).

Conclusion: These formulas offer a practical way to estimate tracheal dimensions in live dogs, facilitating the selection of suitable endotracheal tube sizes and insertion depth. Further studies with larger sample sizes and consistent measurement methods can enhance the accuracy of these findings.

Adv. Vet. Anim. Res., 11(2): 323-329, June 2024

http://doi.org/10.5455/javar.2024.k780

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Published

2024-06-08

How to Cite

Khiao in, M., Kananub, S., Sritrakul, T., Thamsatit, P., Theerawatanasirikul, S., & Srisowanna, N. (2024). Predicting dog tracheal diameter and length: A tool for improved intubation. Journal of Advanced Veterinary and Animal Research, 11(2), 323–329. Retrieved from https://banglajol.info/index.php/JAVAR/article/view/75676

Issue

Vol. 11 No. 2 (2024)

Section

Original Articles

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Copyright (c) 2024 Maneenooch Khiao in, Suppada Kananub, Tepyuda Sritrakul, Pattarawadee Thamsatit, Sirin Theerawatanasirikul, Naparee Srisowanna

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