The Surgical Practice of Robert Sewell, M.D., F.A.C.S.
Unique Services We Offer
for your appointment
Seeing patients in the offices of
Wise County Medical & Surgical Associates
1001 W. Eagle Dr.
Decatur, Texas 76234
Before your TNE exam, we ask that you not eat or drink anything for four hours prior. Afterward there are really no restrictions, and you will have the results of the examination immediately. TNE is the easiest and least expensive way to assess the health of the esophagus. It can often be done as part of your initial evaluation.
Transnasal Esophagoscopy (TNE)
Anyone who has persistent symptoms of acid reflux is at risk for developing a condition called Barrett's Esophagus. Chronic irritation of the esophagus caused by repeated exposure to stomach contents can cause the sensitive tissues that line the esophagus to change, making them look more like the lining of the stomach. This is called Barrett's esophagus, and while these areas are usually benign, they carry a risk of becoming malignant. In the same way mammograms are used to screen patients for breast cancer, TNE can be used to screen patients who are at risk for Barrett's, and determine whether a formal EGD with biopsy under sedation is needed.
North Texas Heartburn & Reflux Center is one of only a few practices in the USA to offer TNE as a Screening examination for Barrett's Esophagus, Esophagitis, Hiatal Hernia, and other conditions associated with Acid Reflux symptoms.
Limitations of TNE
Dr. Sewell talks about
Why get a TNE Exam?
TNE is considered to be a screening exam, and is not the same as conventional Upper GI Endoscopy. First, the instrument is only long enough to reach the upper third of the stomach, making it impossible to thoroughly examine the entire stomach and duodenum. Second, the small diameter of the TNE scope naturally limits the number of fiberoptic bundles within the scope, which means the quality of the image is a lower than larger conventional scopes. Lastly, the Working channel that is contained within the disposable TNE sleeve on the outside of the TNE scope is quite small, making it difficult and often impractical to obtain adequate tissue biopsies using this technique. If anything is seen during TNE that requires biopsy, a conventional endoscopy with a larger scope performed under sedation is likely to be recommended.
At North Texas Heartburn & Reflux Center screening for Barrett's Esophagus is accomplished using Transnasal Esophagoscopy or TNE. This procedure involves the use of a very small, flexible endoscope (6mm in diameter) to inspect the inside of the entire esophagus and upper stomach, and it is done right in our office, and unlike conventional endoscopy, there is no need for sedation or general anesthesia. Local anesthesia only is used to minimize any sensitivity or discomfort in the nose and throat. You can have the exam, which takes only a few minutes, and go right back to work or any other activity. Screening for Barrett's Esophagus does not require that you have someone accompany you, since you’ll be able to drive yourself, and you’ll also be able to eat right away.