Related Experiment Video
Updated: Jun 19, 2026

The Flexible Rhino-Laryngoscope for Awake Nasotracheal Intubation
Published on: August 2, 2024
The GlideScope facilitates nasogastric tube insertion: a randomized clinical trial
Reza Shariat Moharari1, Amir Houshang Fallah, Mohammad Reza Khajavi
1Department of Anesthesiology, Sina Hospital, Tehran University of Medical Sciences, Iran.
Background:
The GlideScope (Saturn Biomedical Systems, B.C., Canada) is a reusable videolaryngoscope and is considered an effective device for tracheal intubation. We designed this study to evaluate the application of this device in nasogastric tube (NGT) insertion.
Methods:
This randomized clinical trial was performed at a teaching hospital on 80 adult patients who required intraoperative placement of an NGT. The patients were divided into 2 groups (the control and the GlideScope group) using computerized, random allocation software. In the control group, the NGT was inserted blindly as commonly performed in operating rooms; however, in the GlideScope group, the tube was inserted with the assistance of a GlideScope. The number of attempts for NGT insertion and the time required for inserting the NGT properly along with the occurrence of possible complications were recorded.
Results:
The mean intubation time in the GlideScope group was 27.7 +/- 20.7 s shorter than that in the control group. NGT insertion in the first attempt was successful in approximately 85% of the patients in the GlideScope group; in the control group, however, the tubes were inserted successfully after the first attempt in 57.5% of the patients. Complications were reported in 14 patients (35%) of the control group and 8 patients (20%) of the GlideScope group.
Conclusion:
GlideScope facilitates NGT insertion and reduces the duration of the procedure.
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