Correlation between correctly sized uncuffed endotracheal tube and ultrasonographically determined subglottic diameter in paediatric population

Makireddy, Rekha; Cherian, Anusha; Elakkumanan, Lenin Babu; Bidkar, Prasanna Udupi; Kundra, Pankaj

doi:10.4103/ija.ija_619_19

Cited by 14 publications

(11 citation statements)

References 13 publications

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“…Therefore, the mid-glottic transverse diameter was also examined. To determine the fitted uncuffed ETT size, we used a leak pressure of 15-25 cm H 2 O to ensure optimal ETT size, which was consistent with the study of Makireddy 15 .…”

Section: Resultsmentioning

confidence: 99%

Ultrasonography measurement of glottic transverse diameter and subglottic diameter to predict endotracheal tube size in children: a prospective cohort study

Deekiatphaiboon

Oofuvong

Karnjanawanichkul

et al. 2022

Sci Rep

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We aimed to determine the correlation between mid-glottic transverse diameter/subglottic diameter and outer diameter of endotracheal tube (ETT) by ultrasonography in children. Ninety-five patients aged 1–8 years who underwent general anesthesia were included. Ultrasonography of glottic/subglottic transverse diameter was performed by two investigators after patients were anesthetized and when the train of four showed ≤ 4. The subglottic diameter was measured at the mid cricoid cartilage. The mid-glottic transverse diameter was measured at the mid-point of true vocal fold triangle whereas the distance between arytenoids was considered as the glottic transverse diameter. Linear regression models and correlation coefficients (r) were used to determine the best formula of glottic/subglottic transverse diameter to predict the outer diameter of ETT. The predicted outer diameter of ETT formula for subglottic diameter, mid-glottic transverse diameter, and glottic transverse diameter were 5.7 + (subglotticmm/3) with an r of 0.45, 5.5 + (midglotticmm/2) with an r of 0.47, and 5.7 + (glotticmm/4) with an r of 0.46, respectively. The correlation between subglottic diameter and mid-glottic transverse diameter was 0.50. Subglottic/mid-glottic/glottic transverse diameter formulae had moderate correlations with the outer diameter of ETT. The glottic/mid-glottic transverse diameter can be used alternatively to predict the ETT size.Trial registration: Thai Clinical Trial Registry: TCTR20191022002 Registered 22/10/2019—Prospectively registered, https://www.thaiclinicaltrials.org/# TCTR20191022002.

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Section: Resultsmentioning

confidence: 99%

Ultrasonography measurement of glottic transverse diameter and subglottic diameter to predict endotracheal tube size in children: a prospective cohort study

Deekiatphaiboon

Oofuvong

Karnjanawanichkul

et al. 2022

Sci Rep

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“…Apart from the formulae considered for our study, there are many other predictors that have been proposed in the literature and we did not include them. [ 9 10 11 12 13 14 15 ] Nonetheless, we have included some of the most commonly used formulae for prediction of size of ETT in the paediatric population.…”

Section: Discussionmentioning

confidence: 99%

“…Ultrasonography based predictors are gaining more attention, seem to be more accurate and it is possible that access to ultrasonography will increase in our country in the future. [ 9 10 11 12 ] Apart from ultrasonography, radiography and three-dimensional printer-based predictors have also been evaluated recently. [ 13 14 15 ] It will be interesting to compare them with these newly described predictive parameters.…”

Section: Discussionmentioning

confidence: 99%

Length of the middle finger of hand as a simple and reliable predictor of optimal size of uncuffed endotracheal tube in paediatric patients: An observational study

Saikia¹,

Thottan²

2021

Indian Journal of Anaesthesia

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Background and Aims: A recent study suggested middle finger length-based formula as a better predictive guide compared with age-based formula for selecting uncuffed endotracheal tubes (ETTs) in children. But that study did not meet sample size requirement. Thus, we primarily aimed to determine the accuracy of formula using length of the middle finger to determine the internal diameter of the uncuffed ETT and to compare its accuracy with the Cole's formula. As a secondary objective, we desired to compare its accuracy with some commonly used length and weight-based formulae. Methods: This prospective observational study included children aged up to 12 years posted for elective surgery under general anaesthesia. The length of the middle finger on the palmar aspect of the hand was measured in the preoperative period and the characteristics of the airway used were noted. A predefined criterion of optimal size of the uncuffed ETT was used. Results: A total of 139 patients were included in the final analysis. It was observed that the formula based on middle finger length can predict the optimal size of uncuffed ETT within an error of 0.5 mm in more than 90% instances and its predictive performance is better than Cole's formula. As a secondary outcome, we also observed that its accuracy is better than other formulae under evaluation. Conclusion: Formula based on middle finger length can be used as a predictor of optimal size of uncuffed ETT in paediatric patients and it is a better predictor than Cole's formula.

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“…[ 19 ] Strict quality vigilance exists for the manuscripts submitted to the IJA, and as a result, the COVID manuscripts have been associated with quite a high rejection rate of nearly 84% [ Figure 1 ]; nevertheless, a variety of COVID-19 related manuscripts got published in the previous issues of the IJA. [ 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ]…”

Section: Necessary Measures To Protect the Quality Of Covid Researchmentioning

confidence: 99%

Research in COVID times—Innovations, revolutions and contentions

Mehdiratta¹,

Bajwa

Kurdi

et al. 2021

Indian J Anaesth

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Correlation between correctly sized uncuffed endotracheal tube and ultrasonographically determined subglottic diameter in paediatric population

Cited by 14 publications

References 13 publications

Ultrasonography measurement of glottic transverse diameter and subglottic diameter to predict endotracheal tube size in children: a prospective cohort study

Ultrasonography measurement of glottic transverse diameter and subglottic diameter to predict endotracheal tube size in children: a prospective cohort study

Length of the middle finger of hand as a simple and reliable predictor of optimal size of uncuffed endotracheal tube in paediatric patients: An observational study

Research in COVID times—Innovations, revolutions and contentions

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