Research Journal of Medical Sciences
ISSN: Online 1993-6095ISSN: Print 1815-9346
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Relationship Between USG Guided Subglottic Diameter, Age‐Based Formula and Little Finger Breadth with Outer Diameter of Endotracheal Tube in Pediatric Patients for the Estimation of Appropriate Size of Endotracheal Tube
Akhil Shekar, N. Suvina, Y. Prajwala and Swati Bisht
Page: 82-88 | Received 08 Jan 2025, Published online: 13 Jan 2025
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Abstract
Children are not the small size adults and have the distinct physiology of their own, distinct from adult which makes the pediatric anaesthesia diverse from adult anaesthesia and mainstay of anesthetic management in this pediatric age group in general anesthesia. This study was designed to correlate ultra‐sonography (USG) guided subglottic diameter, age based formula and little finger breadth (LFB) for the estimation of appropriate size of the uncuffed endotracheal (ET) tube in pediatric patients in view to decrease the repeated attempts of intubation and the consequences following it. To correlate USG guided subglottic diameter, age based formula and LFB(Little Finger Breadth) for the estimation of appropriate size of the uncuffed ET‐tube in pediatric patients in view to decrease the repeated attempts of intubation. This Prospective study was conducted among Pediatric patients falling into age group 6months‐6 years age group undergoing elective surgery under general anesthesia in Vydehi Institute of Medical Sciences and Research Centre, Bangalore. One year from October 2019 to October 2020. Fifty children with mean age of 38 months (SD 22.2 range‐Three Months to 72 months) were recruited for this prospective observational study after the informed written consent from the parents. Agreement between calculated ETT(Endotracheal tube) and correct ETT size shows that the age based formula provided better prediction of ETT size in children (40% of children). Ultrasound was correct in 16% of the cases. A difference of #0.3 mm between the tested methods (USG, LFB) and the OD of the correct ETT size was considered as an acceptable difference. In conclusion, USG measured subglottic diameter correlates with the actual tracheal tube used and may be useful in choosing the appropriate size ETT. Age based formulae are more reliable. Therefore, it is our opinion that there is no advantage in ultrasound measurement of subglottic diameter.
How to cite this article:
Akhil Shekar, N. Suvina, Y. Prajwala and Swati Bisht. Relationship Between USG Guided Subglottic Diameter, Age‐Based Formula and Little Finger Breadth with Outer Diameter of Endotracheal Tube in Pediatric Patients for the Estimation of Appropriate Size of Endotracheal Tube.
DOI: https://doi.org/10.36478/10.36478/makrjms.2025.2.82.88
URL: https://www.makhillpublications.co/view-article/1815-9346/10.36478/makrjms.2025.2.82.88