What does this research mean for the field?

Subglottic diameter measured by ultrasonography reliably predicts the outer diameter of the optimal endotracheal tube for infants undergoing cardiac surgery. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To determine if subglottic diameter measured via ultrasonography can predict the appropriate endotracheal tube size for infants in cardiac surgery.

April 16, 2026Annals of Cardiac Anaesthesia1 citationsOpen Access

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Sub-glottic Diameter Measured by Ultrasonography Predicts Outer Diameter of the Clinically Best Fit Endotracheal Tube in Infants Undergoing Pediatric Cardiac Surgery

JJJessin P. Jayasankar LSL. Sai Sudha PNPraveen Kumar Neema

Key Points

To determine if subglottic diameter measured via ultrasonography can predict the appropriate endotracheal tube size for infants in cardiac surgery.
Measured subglottic diameter using ultrasonography.
Evaluated the prediction of endotracheal tube size.
Focused on infants undergoing pediatric cardiac surgery.
Subglottic diameter measurements reliably predicted the outer diameter of the best-fit endotracheal tubes.
Findings are particularly meaningful in low-volume anesthesiology settings.

Abstract

Subglottic diameter measured by USG reliably predict outer diameter of the ETT size in infants undergoing cardiac surgery. The finding is particularly valuable in low-volume centers where anesthesiologists may have limited experience with pediatric cardiac surgery.

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View Full Paper

Sub-glottic Diameter Measured by Ultrasonography Predicts Outer Diameter of the Clinically Best Fit Endotracheal Tube in Infants Undergoing Pediatric Cardiac Surgery

Key Points

Abstract

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