Clinical Trial: Functional Endoscopy in Neurogenic Dysphagia

Study Status: Recruiting
Recruit Status: Unknown status
Study Type: Observational

Official Title: Transnasal Endoscopic Evaluation of Swallowing: Functional Esophagoscopy Using an Ultrathin Video Endoscope in Neurogenic Dysphagia

Brief Summary:

The esophago-gastro-duodenoscopy is an endoscopic examination technique of the upper GI-tract which was founded by the German surgeon Johann Freiherr von Mikuliicz-Radecki at the end of 19th century. By this means, the luminal site of the esophagus, stomach and duodenum may be visualized after inserting a flexible endoscope through the mouth (transoral access). By the rapid technical development in the last years smaller flexible video endoscopes have been developed allowing also an alternative access to the upper GI-tract via the nose (transnasal access).

Patients with dysphagia are referred to physicians of different disciplines (gastroenterology, surgery, ear, nose, and throat (ENT) medicine, radiology, neurology) performing a variety of endoscopic and non-endoscopic techniques. Mostly, the endoscopic examination of the esophagus is done in sedated patients in left lateral examination. Typical findings during esophagoscopy might be tumors, strictures, achalasia or diverticula.

Patients suffering from neurogenic dysphagia often get caught in the trap: they find themselves somewhere in the space between gastroenterologist, neurologist, ENT-specialist and radiologist. This dilemma might be due to a lack of pathophysiological knowledge among many physicians and an inability to directly visualize the esophageal phase of deglutition. In sedated patients lying in left lateral position, endoscopists may receive a very limited impression of the function of the different phases of swallowing since this endoscopic access is a rather static one.

The focus of our observational study are patients with suspected neurogenic dysphagia. These patients shall be examined by transnasal endoscopy applying an ultrathin video endoscope with an outer diameter of 3.8 mm (BF-3C160, Olympus Europe)

Detailed Summary:

The esophago-gastro-duodenoscopy is an endoscopic examination technique of the upper GI-tract which was founded by the German surgeon Johann Freiherr von Mikuliicz-Radecki at the end of 19th century. By this means, the luminal site of the esophagus, stomach and duodenum may be visualized after inserting a flexible endoscope through the mouth (transoral access). By the rapid technical development in the last years smaller flexible video endoscopes have been developed allowing also an alternative access to the upper GI-tract via the nose (transnasal access).

Patients with dysphagia are referred to physicians of different disciplines (gastroenterology, surgery, ear, nose, and throat (ENT) medicine, radiology, neurology) performing a variety of endoscopic and non-endoscopic techniques. Mostly, the endoscopic examination of the esophagus is done in sedated patients in left lateral examination. Typical findings during esophagoscopy might be tumors, strictures, achalasia or diverticula. In sedated patients lying in left lateral position, endoscopists may, therefore, receive a very limited impression of the actual function of the different phases of swallowing since this endoscopic approach is a rather static one.

Patients suffering from neurogenic dysphagia often get caught in the trap: they find themselves somewhere in the space between gastroenterologist, neurologist, ENT-specialist and radiologist. This dilemma might be due to a lack of pathophysiological knowledge among many physicians and an inability to directly visualize the esophageal phase of deglutition.

The focus of our observational study are patients with suspected neurogenic dysphagia. These patients shall be examined by transnasal endoscopy applying an ultrathin video endoscope with an outer diameter of 3.8 mm (BF-3
Sponsor: University Hospital Muenster

Current Primary Outcome: Number of patients in which the procedure may be successfully performed (feasibility) [ Time Frame: 30 minutes ]

Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Pathologic endoscopic findings in patients suffering from neurogenic dysphagia [ Time Frame: 30 minutes ]
  • Number of patients with adverse events as a measure of safety and tolerability [ Time Frame: 1 week ]
    safety of transnasal functional endoscopy in diagnostics of neurogenic dysphagia


Original Secondary Outcome: Same as current

Information By: University Hospital Muenster

Dates:
Date Received: November 18, 2013
Date Started: September 2012
Date Completion: December 2014
Last Updated: November 21, 2013
Last Verified: November 2013