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Early gastric cancer diagnostic ability of ultrathin endoscope loaded with laser light source.

Abstract：

BACKGROUND:Conventionally, the low luminous intensity, low image resolution, and difficulty in operation have been reported with the ultrathin endoscope. However, it has markedly advanced recently. The improvement of the diagnostic ability is expected. AIM:To compare the early gastric cancer diagnostic ability of an ultrathin endoscope loaded with a laser light source and that of the conventional endoscope. METHODS:The target subjects were 375 consecutive patients who underwent endoscopy at our hospital for post-endoscopic submucosal dissection follow-up of gastric cancer from January to August 2018. During endoscopy, the ultrathin endoscope was used in 140 patients (37.3%), and the conventional endoscope was used in 235 patients (62.7%). Patient background was adjusted using the propensity score matching method, and gastric cancer detection ability was evaluated in the two groups. RESULTS:The gastric cancer detection rate was 7.8% in the ultrathin endoscope group and 7.0% in the conventional endoscope group, and the mean intragastric observation time was 4.1 ± 1.7 min in the ultrathin endoscope group and 4.1 ± 1.9 min in the conventional endoscope group, showing no significant differences between the groups. Moreover, the biopsy implementation rate was 31.8% in the ultrathin endoscope group and 41.1% in the conventional endoscope group, and the biopsy prediction rate was 17.9% and 13.2%, respectively, showing no significant differences between the groups. CONCLUSION:The gastric cancer diagnostic ability of the ultrathin endoscope loaded with a laser light source was comparable to that of the conventional endoscope. The observation time was also comparable. Thus, endoscopy using the ultrathin endoscope loaded with the laser light source would be the first option in screening examinations of gastric cancer due to its low invasion.

journal_name

World J Gastroenterol

journal_title

World journal of gastroenterology

authors

Suzuki T,Kitagawa Y,Nankinzan R,Yamaguchi T

doi

10.3748/wjg.v25.i11.1378

subject

Has Abstract

pub_date

2019-03-21 00:00:00

pages

1378-1386

issue

eissn

1007-9327

issn

2219-2840

journal_volume

pub_type

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Early gastric cancer diagnostic ability of ultrathin endoscope loaded with laser light source.