Journal article
Reflex laryngospasm induced by stimulation of distal esophageal afferents
The Laryngoscope, Vol.104(2), pp.209-214
02/1994
DOI: 10.1288/00005537-199402000-00015
PMID: 8302126
Abstract
Distal esophageal sensory nerves were stimulated in 17 anesthetized dogs divided into three age groups to determine the laryngeal, cardiovascular, and respiratory effects. Group I puppies were 5 to 6 weeks of age, group II puppies were 8 to 19 weeks of age, and group III animals were adult dogs. Marked laryngeal adductor activity and laryngospasm were observed in group II puppies, while no or minimal laryngeal adduction was seen in younger puppies and adult dogs. Mean arterial pressure and heart rate increased significantly in groups II and III (P<.005) but remained unchanged in group I animals (P>.4). This response is distinctly different from the laryngeal chemoreflex because central apnea, hypotension, and bradycardia were absent. The afferent limb of the response is mediated by the vagus nerve as bilateral transthoracic truncal vagotomy eliminated the reflex. The laryngeal response observed following stimulation of distal esophageal afferent fibers may be important in the mechanism of apparent life‐threatening events (ALTEs) and the sudden infant death syndrome (SIDS) associated with gastroesophageal reflux disease.
Details
- Title: Subtitle
- Reflex laryngospasm induced by stimulation of distal esophageal afferents
- Creators
- Nancy M BaumanAnthony D SandlerCharles SchmidtJames W MaherRichard J. H Smith
- Resource Type
- Journal article
- Publication Details
- The Laryngoscope, Vol.104(2), pp.209-214
- DOI
- 10.1288/00005537-199402000-00015
- PMID
- 8302126
- NLM abbreviation
- Laryngoscope
- ISSN
- 0023-852X
- eISSN
- 1531-4995
- Publisher
- John Wiley & Sons, Inc; Hoboken, NJ
- Number of pages
- 6
- Language
- English
- Date published
- 02/1994
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Molecular Physiology and Biophysics; Anatomy and Cell Biology; Stead Family Department of Pediatrics; Iowa Neuroscience Institute; Surgery; Otolaryngology; Internal Medicine
- Record Identifier
- 9984006416002771
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