Background and Aim: Tubular feeding is used, in patients who cannot take food through their mouths, but the digestive system has the ability to digest food. This method is safe and affordable for the patient and results in maintaining the function of the digestive system and reducing the risk of infection and sepsis. The purpose of this study was to compare the three methods of the NG tube placement in intubated patients in the emergency department of university-affiliated hospitals of Isfahan from2016 to 2018.

Materials and Methods: This study was a randomized and prospective clinical trial. The statistical population of this study was all patients who had been referred to the emergency department of Al-Zahra and Ayatollah Kashani hospitals in Isfahan between2016and2018. The sample size was 25 in each group, and in total 75 subjects. The first group was NG tube insertion by the conventional method, the second group was using brake cable and the third group was embeddedby highwayman's hitch or draw hitch, using a silk thread. For all patients, demographic characteristics and possible complications were recorded. Finally, the data were analyzed using SPSS20 software at two statistical levels of descriptive and inferential.

Inclusion Criteria:

• all intubated patients, referred to the emergency department

Exclusion Criteria:

• the presence of symptoms of skull base fracture,
• bleeding disorders and coagulopathies,
• maxillofacial trauma, which led to deformity and impairment of NG tube,
• upper respiratory tract diseases and anomalies,
• nasal congestion and nostril stenosis,
• esophageal disorder (esophageal stenosis and esophageal varicose vein),
• and a history of head and neck radiotherapy.
• Patients who had been intubated in other centers and being referred to these two centers were also excluded.