Gut Liver.  2008 Dec;2(3):155-165.

Transnasal Route: New Approach to Endoscopy

• Lee SY
• Kawai T

Abstract

Transnasal esophagogastroduodenoscopy (TN-EGD) has recently become one of the frequently used methods of upper gastrointestinal endoscopy in some countries. Changes in blood pressure, heart rate, and oxygen saturation are smaller for TN-EGD than for conventional transoral esophagogastroduodenoscopy, making it a safer procedure. Lower pain and gag reflex enable TN-EGD to be performed without conscious sedation. TN-EGD is applied in various gastrointestinal (GI) procedures such as percutaneous endoscopic gastrostomy, nasoenteric feeding tube placement, endoscopic retrograde cholangiopancreaticography with nasobiliary drainage and lithotripsy, long intestinal tube placement in small-bowel obstruction, esophageal manometry, foreign body removal, botulinum toxin injection for achalasia, esophageal varix evaluation with the aid of endoscopic ultrasonography, and the double-scope technique for endoscopic submucosal dissection. The establishment of standard training programs and nationwide guidelines, the dissemination of educational information, the improvement in endoscopy devices and accessories, and the availability of insurance coverage for the procedure will obviously further widen the adoption of TN-EGD.

Keyword

Transnasal; Esophagogastroduodenoscopy; Gastrointestinal; Endoscopy

MeSH Terms

Adoption
Blood Pressure
Botulinum Toxins
Conscious Sedation
Drainage
Endoscopy
Endoscopy, Digestive System
Endoscopy, Gastrointestinal
Endosonography
Esophageal Achalasia
Foreign Bodies
Gastrostomy
Heart Rate
Insurance Coverage
Lithotripsy
Manometry
Oxygen
Reflex
Varicose Veins
Botulinum Toxins
Oxygen