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Updated: Jul 13, 2026

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models
Published on: March 1, 2015
Deglutition and respiration: development, coordination, and practical implications
Maureen A Lefton-Greif1, Sharon A McGrath-Morrow
1Department of Pediatrics, Eudowood Division of Pediatric Respiratory Sciences, The Johns Hopkins Medical Institutions, Baltimore, MD 21287, USA. mlefton@jhmi.edu
Insights
Coordinated swallowing and breathing in infants is vital for lung development. Disruptions can cause aspiration and dysphagia, requiring early identification and intervention for at-risk children.
Area of Science:
- Pediatric Medicine
- Respiratory Physiology
- Swallowing Disorders
Background:
- Swallowing (deglutition) and breathing share the pharyngeal pathway.
- Coordination is critical for infant survival and lung development.
- Dysfunction can lead to aspiration and lung injury.
Purpose of the Study:
- To review the coordination of swallowing and breathing in infants and children.
- To discuss aspiration risks during lung development.
- To highlight airway protective mechanisms and identify at-risk populations.
Main Methods:
- Literature review focusing on infant and pediatric deglutition-respiration.
- Analysis of airway protection and aspiration mechanisms.
- Discussion of risk factors for oropharyngeal dysphagia and respiratory disease.
Main Results:
- Temporal coordination is essential, with shared pharyngeal pathway.
- Infant dysphagia can cause aspiration and lung injury.
- Respiratory issues may precipitate swallowing problems.
Conclusions:
- Identifying infants at risk for dysphagia and respiratory disease is crucial.
- Early assessment and management are key for optimal outcomes.
- Understanding the interplay between breathing and swallowing aids intervention.
Abstract:
Temporal coordination of deglutition and respiration is essential for survival because both functions share the pharynx as a common pathway. Disruptions in this interface in young infants may result in dysphagia that may lead to aspiration and injury to the developing lung. Likewise, respiratory problems may contribute to the development of swallowing problems. This article focuses on the coordination between swallowing and breathing in infants and children, aspiration during periods of postnatal lung development and airway protective mechanisms. Identification of infants and children at increased risk for oropharyngeal dysphagia and respiratory disease is critical for optimal intervention. Assessment and management considerations are described.
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