Merck Manual

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Relief of esophageal obstruction under general anesthesia, horse
Relief of esophageal obstruction under general anesthesia, horse

Relief of esophageal obstruction in a horse under general anesthesia. Note the nasotracheal tube is in the left nostril, positioned into the esophagus, and then the cuff is inflated. A nasogastric tube is then inserted into the nasotracheal tube, and the esophagus is lavaged to relieve the obstruction.

Courtesy of Dr. Jan Hawkins, Purdue University.