Fig. 6
From: Fundamental concepts and the latest evidence for esophageal pressure monitoring
Copyright © 2022 American Thoracic Society. All rights reserved. Cite: Khemani RG, Hotz J, Morzov R, et al. 2016 Evaluating Risk Factors for Pediatric Post-extubation Upper Airway Obstruction Using a Physiology-based Tool. Am J Respir Crit Care Med. 193:198–209. The American Journal of Respiratory and Critical Care Medicine is an official journal of the American Thoracic Society. Example of subglottic upper airway obstruction data of an infant after extubation. The data indicate inspiratory flow limitation (left), that is, no increase in flow despite a continual decrease in esophageal pressure. A significant improvement was observed 20 minutes after racemic epinephrine administration (right). Esophageal pressure was measured in centimeters of water. RIP respiratory inductance plethysmography
Example of a flow-limitation pattern in a patient with subglottic upper airway obstruction after extubation. Applying permission to reprint from [24] with permission of the American Thoracic Society. Example of subglottic upper airway obstruction data of an infant after extubation. The data indicate inspiratory flow limitation (left), that is, no increase in flow despite a continual decrease in esophageal pressure. A significant improvement was observed 20 min after racemic epinephrine administration (right). Esophageal pressure was measured in centimeters of water. RIP = respiratory inductance plethysmography.