1. From: Prediction of Pediatric Endotracheal Tube Size by Ultrasonography
Anesthes. 2010;113(4): doi: /ALN.0b013e3181ef6757
Figure Legend:
The relationship between the outer diameter of optimally sized endotracheal tubes (ETT) in mm and subglottic diameter, also in mm: the outer ETT diameter = 0.46 × (subglottic diameter) , R  2= 0.90 for cuffed ETTs, and the outer ETT diameter = 0.55 × (subglottic diameter) , R  2= 0.90 for uncuffed ETTs (n = 48 in each group).
Date of download: 10/24/2017
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