having no symptoms or exhibiting abdominal symptoms
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients aged 20 years or older at the time of consent. Patients who agree to undergo transnasal endoscopy. Patients who have provided written informed consent to participate in this study.
Exclusion criteria
Exclusion criteria: Patients in whom transnasal endoscopy could not be inserted. Patients who wish to undergo sedation. Patients scheduled for endoscopic treatment. Patients who have undergone surgical resection of the upper gastrointestinal tract (esophagus, stomach, or duodenum). Patients who are unable to provide written informed consent to participate in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| patient tolerance and endoscopist operability | — |
Secondary
| Measure | Time frame |
|---|---|
| patency of the upper to middle pharynx, endoscopic insertion time, and adverse events | — |
Countries
Japan
Contacts
Asahikawa Medical University Gastroenterology