Comparison of the efficiency of lean body weight-based methods and thoracic radiograph measurement in determining endotracheal tube size in mesocephalic dogs

Ng, Shu Qing (2023) Comparison of the efficiency of lean body weight-based methods and thoracic radiograph measurement in determining endotracheal tube size in mesocephalic dogs. [Project Paper] (Submitted)

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Abstract

Endotracheal tube size (ETS) estimation is vital to prevent undesirable complications of improper size endotracheal tube utilization while maximizing its functions. However, no standardized optimal ETS selection method is indicated for dogs currently due to a great variety in breeds, conformations, and body weights xiv contributing to a wide individual tracheal diameter variation. Therefore, this study aimed to compare the ability of the lean body weight-based formula method (BWT), lean body weight range table (TAB), and thoracic radiographic measurement method (RAD) in estimating the actual inserted endotracheal tube size (ACT) for mesocephalic dogs. 12 mesocephalic dogs of different breeds were included as study subjects. The body weights and body condition scores were recorded for lean body weight-based formula calculation and lean body weight range table method to estimate BWT’s and TAB’s ETS respectively. The internal tracheal diameter was measured on digital lateral thoracic radiographs for RAD’s ETS estimation. ACT was determined based on the resistance upon intubation and leak test. There was a high degree of significant positive correlation between ETS of BWT and ACT (p = 0.000, r = 0.955), ETS of RAD and ACT (p = 0.000, r = 0.981), as well as ETS of TAB and ACT (p = 0.000, r = 0.925). In terms of correct prediction of exact ETS, RAD (66.7%) had the highest accuracy, followed by BWT (41.7%), and TAB with the lowest prediction accuracy (16.7%). 83.3%, 75%, and 50% of the patients’ ACT are within three sizes of endotracheal tubes (ETS, one 0.5mm smaller, one 0.5mm larger than the predicted size) using RAD, ACT, and TAB methods, respectively. In conclusion, BWT and RAD are practicable and suitable to be used as a guide to predict the ACT in mesocephalic dogs when three sizes of endotracheal tubes (ETS, one 0.5mm smaller, one 0.5mm larger than the predicted size) are prepared.

Item Type:	Project Paper
Faculty:	Faculty of Veterinary Medicine
Depositing User:	Ms. Nordeena Abdul Aziz
Date Deposited:	30 Oct 2024 07:48
Last Modified:	30 Oct 2024 07:48
URI:	http://psaspb.upm.edu.my/id/eprint/2099

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