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Evaluation of Small‐caliber Transnasal Panendoscopes for Upper G‐I Screening Examination
Author(s) -
NOZAKI Ryoichi,
FUJIYOSHP Tateshi,
TAMURA Masaki,
TSUCHIYA Akira,
TAKAGI Koichi,
TAKANO Masahiro
Publication year - 1995
Publication title -
digestive endoscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.5
H-Index - 56
eISSN - 1443-1661
pISSN - 0915-5635
DOI - 10.1111/j.1443-1661.1995.tb00154.x
Subject(s) - medicine , fiberscope , surgery , caliber , insertion time , materials science , metallurgy , airway
We evaluated two models of small‐caliber panendoscopes for the upper G‐I tract, for their applicability to gastric cancer mass screening or upper G‐I screening; one type is a fiberscope (GIF‐N30; Olympus Optical Co.) with an outer tip diameter of 5.3mm (start date. May, 1993) originally designed for newborns and infants, while the other is a newer electronic videoscope (XGIF‐N200; Olympus) with a tip diameter of 6mm (start date, February, 1994) recently developed to allow transnasal insertion. Both scopes are suitable for transnasal insertion. Of the 658 subjects examined, 403 were randomly selected to undergo transnasal insertion. Conversation between the operator and subject was possible during the procedure. Among those subjects who had previously been examined by means of panendoscopy, 90.3% (224/248) replied that the transnasal insertion was more comfortable than the ordinary peroral insertion, and 89.9% (223/248) stated that they would not mind undergoing transnasal endoscopic examination in the future. The examiners reported no difficulties with manipulation, visual acuity, or obtaining biopsy specimens. The mean examination time with the small‐caliber endoscopes was about five minutes, which is shorter than with previously reported examinations. Transnasal insertion of the small‐caliber panendoscopes is recommended particularly for screening purposes, such as the gastric cancer mass survey. However, the long‐term durability of the instrument must be assessed before widespread application becomes possible.