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A disposable, transnasal esophagoscope, E.G. ScanTM was developed by IntroMedic Co. Ltd. (Seoul, Korea). This device was designed to allow patient to undergo endoscopy with minimum pain without sedation. This endoscopy system consists of thin probe with a CMOS camera, controller and simple display system. This system is light enough to carry and does occupy much space, and thus, it can be used at patient bed sides in intensive care units, in emergency rooms, and even in doctor's offices.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study:
20 Years and older (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
aged 20 years or older
endoscopy indicated for reflux symptoms (heartburn, epigastric soreness and/or regurgitation), dyspepsia (epigastric discomfort, bloating, early satiety), or non-cardiogenic chest pain, or known or suspected to have esophageal varices, infectious esophagitis, or other esophageal disease based on their medical history
a written informed consent form
history or symptoms of severe rhinitis and sinusitis
symptoms of acute respiratory inflammation at the time of examination
abnormal anatomy of the nasal cavity or nasopharynx due to nasal tumors or previous nasopharyngeal surgery