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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.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.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.GlideScope facilitates NGT insertion and reduces the duration of the procedure.