<unk>  <unk>  is a safe and inexpensive way to examine the esophagus in patients at risk for esophageal cancer and other disorders.<unk>  doesn't require sedation, unlike other techniques widely used to look into the esophagus. This is possible because<unk>  uses a camera that is passed through the nose, whereas other techniques, such as upper endoscopy, are performed through the mouth, requiring a patient to be sedated.<unk> , as it is used today, was developed by Jonathan E. Aviv who published his findings on the first series of<unk>  that he performed. The origins of the idea to pass the camera through the nose date from 1993 as first described by C. A. Prescott, MD, a pediatrician otolaryngologist in Cape Town, South Africa and further embellished by Reza Shaker, MD, a gastroenterologist in Milwaukee, WI in 1994. However, it wasn't until the year 2000 when Jonathan E. Aviv, MD, published his findings on the first series of<unk>  he performed, that it began to have a widespread attention by ear, nose, and throat doctors. Since that time it has been used by both otolaryngologists and gastroenterologists as a diagnostic tool to detect globus, dysphagia, laryngopharyngeal reflux (LPR), gastroesophageal reflux disease (GERD).<unk>  may also be useful in detecting Barrett's, but there is incongruence between<unk>  findings and biopsy results. Experts in the field suggest that<unk>  may replace radiographic imaging of the esophagus in otolaryngology patients with reflux, globus, and dysphagia.
Transnasal esophagoscopy
Mediastinoscope
Falloposcopy
Nasoendoscopy
Mediastinoscopy
Stroboscope
Laryngoscopy
Gonioscopy