細径(経鼻)内視鏡検査による観察の要点

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  • TECHNIQUES OF TRANSNASAL ESOPHAGO-GASTRO-DUODENOSCOPY

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Transnasal esopgago-gastro-duodenoscopy (TN-EGD) is spreading rapidly in Japan. TN-EGD gives good tolerance and slight damage of cardio-pulmonary system for the patients. The function of operation of TN-EGD is poor. The quantity of light guide and endoscopical image are also poor, it is necessary to close-up observation. On the other hand the detection rate of esophageal cancer, gastric cancer is higher than that of conventional EGD. So TN-EGD is useful for screening of upper gastrointestinal tract (GI tract). TN-EGD should be conducted slowly and politely, because TN-EGD was produced thinner, at the expense of the several functions. TN-EGD is a new option when the patients want to check their upper GI tract.

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