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Updated: Oct 21, 2026

Ultrasonography-Guided Nasogastric Tube Placement and Verification: A Standardized Nursing Protocol
Published on: April 7, 2026
Effects of nasogastric tubes on the young, normal swallowing mechanism
P S Huggins1, S K Tuomi, C Young
1Department of Logopaedics, University of Cape Town, Cape Town, South Africa.
Abstract:
The present study aimed to investigate the effects of different-sized nasogastric tubes on swallowing speed and function in 10 young normal volunteers. Using X-ray visualization, liquid barium swallows were recorded on video (videofluoroscopy) under three experimental conditions: no nasogastric tube, fine-bore nasogastric tube, and wide-bore nasogastric tube. Nasogastric tubes slowed swallowing but did not alter swallowing function, namely bolus transit and clearance, and airway protection. The presence of a wide-bore nasogastric tube caused significant duration changes in several swallowing measures, namely duration of stage transition, duration of pharyngeal response, duration of pharyngeal transit, and duration of upper esophageal sphincter opening. Similar trends were seen for the fine-bore tube. The implications for nonoral feeding of patients with swallowing disorders are discussed.
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