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Transnasal diagnostic upper gastrointestinal endoscopy appears to be a promising alternative to peroral upper endoscopy

Transnasal small-caliber upper endoscopy was well tolerated and safe, and is associated with less gagging than peroral endoscopy, according to a study in Endoscopy.

News image

A study published in the August issue of Endoscopy has compared the feasibility and tolerance of transnasal small-caliber and peroral small-caliber upper endoscopy with conventional peroral endoscopy.

A team of doctors in Dusseldorf, Germany, allocated 150 patients, referred for diagnostic endoscopy, to undergo either transnasal small-caliber endoscopy, peroral small-caliber endoscopy or conventional peroral endoscopy.

Complete examination, including the second part of the duodenum and biopsy sampling, was possible in all 150 patients.

Patients examined with a small-caliber instrument required sedation significantly less often than those examined with a conventional endoscope.

Transnasal endoscopy was initially more painful on insertion, but caused less gagging than the peroral procedure.

Patients examined with an ultrathin instrument required sedation significantly less often and consequently spent less time in the recovery room.
Endoscopy
4 out of 50 patients were unable to undergo transnasal endoscopy because of a narrow nasal tract. These patients instead underwent a peroral procedure.

The authors of the study conclude. “Transnasal diagnostic endoscopy appearsto be a promising alternative to peroral endoscopy.”

“Procedures with small-caliber endoscopes were better tolerated and required sedation less often than those with conventional endoscopes.”

Endoscopy 2003; 641-646
22 August 2003

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