• Sigmund J Kharasch, Sonja Salandy, Paloma Hoover, and Virginia Kharasch.
• Pediatric Emergency Medicine Fellow, Division of Pediatric Emergency Medicine, Cohen Children's Medical Center, New Hyde Park, NY.
• Pediatr Emerg Care. 2025 Jan 1; 41 (1): 687468-74.

AbstractThe diaphragm is the major muscle of inspiration accounting for approximately 70% of the inspired tidal volume. Point-of-care diaphragmatic ultrasound offers the ability to quantitatively assess diaphragmatic function, perform serial evaluations over time, and visualize structures above and below the diaphragm. Although interest in point-of-care ultrasound (POCUS) of the diaphragm is developing in the emergency medicine, assessment of the diaphragm and its function is not recognized as a core application by national organizations or expert guidelines. As a result, it is infrequently performed, and its potential value in research or clinical practice may not be fully appreciated. The purpose of this review is to describe the developmental aspects of the diaphragm as it pertains to POCUS, discuss the POCUS techniques for evaluating diaphragmatic function, address competency acquisition in this POCUS application, summarize relevant research in the ED, and provide a summary of recommendations for further research and clinical utilization of POCUS in diaphragm evaluation.Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.

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