Related Experiment Video
Updated: Aug 15, 2026

Ultrasonography-Guided Nasogastric Tube Placement and Verification: A Standardized Nursing Protocol
Published on: April 7, 2026
[A study on insertion of a nasogastric tube in intubated patients]
Ryotaro Kayo1, Ichiro Kajita, Soongji Cho
1Division of Anesthesia, Matsushita Memorial Hospital, Moriguchi.
Background:
Insertion of a nasogastric tube in anesthetized and intubated patients is sometimes difficult. We studied the movement of a gastric tube in order to find a way for successful insertion of a nasogastric tube.
Methods:
We used the method of Ozer's; bronchofiber examination of nasogastric tube placement in an anethetized patient, with changing heights of a pillow [0 cm, 5 cm, 10 cm], rotating head [45 degree each side] and jaw lifting.
Results:
The height of the pillow is an important factor regardless of other maneuvers.
Conclusions:
Our study showed that using a 5 cm height pillow was a best way to insert a nasogastric tube, but ipsilateral head rotation did not contribute to the procedure.
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