Usefulness of Magnifying Narrow-Band Imaging Endoscopy in the Helicobacter pylori-Related Chronic Gastritis

Okubo, Masaaki; Tahara, Tomomitsu; Shibata, Tomoyuki; Nakamura, Masakatsu; Kamiya, Yoshio; Yoshioka, Daisuke; Maeda, Yuto; Yonemura, Joh; Ishizuka, Takamitsu; Arisawa, Tomiyasu; Hirata, Ichiro

doi:10.1159/000321799

Cited by 22 publications

(14 citation statements)

References 41 publications

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“…The another limitation of NBI system is the presence of a thick keratin layer covering underlying mucosa where NBI view could not detect microvascular changes interfered by the keratin layer 11. Thus the diagnostic accuracy of NBI may be affected by the learning curve associated with this new technique, and extra time is needed to acquire the procedure 9–14, 31, 32. A second limitation was our use of a gastrointestinal endoscope instead of a flexible fiberoptic laryngoscope.…”

Section: Discussionmentioning

confidence: 99%

Detection of the primary lesion in patients with cervical metastases from unknown primary tumors with narrow band imaging endoscopy: Preliminary report

Ryu¹,

Choi²,

Kim³

et al. 2012

Head & Neck

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Section: Discussionmentioning

confidence: 99%

Detection of the primary lesion in patients with cervical metastases from unknown primary tumors with narrow band imaging endoscopy: Preliminary report

Ryu¹,

Choi²,

Kim³

et al. 2012

Head & Neck

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“…Recent advance of image-enhanced endoscopy, NBI, blue laser imaging, and linked color imaging has improved the accuracy and reproducibility of endoscopic diagnosis of H. pylori-infected gastritis, CAG, and IM as well as premalignant lesions or early gastric cancer [18,19]. High-resolution endoscopes with magnification-NBI are highly efficient in detecting premalignant lesions or early gastric cancer [20,21].…”

Section: Discussionmentioning

confidence: 99%

Evaluating the Accuracy of the Endoscopic ABC Classification System in Diagnosing Helicobacter pylori-Infected Gastritis

et al. 2019

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Aims: Evaluating the accuracy of the modified Endoscopic ABC (Endo ABC) classification with an electronic endoscopy with narrow band imaging without magnification in diagnosing Helicobacter pylori (H. pylori)-infected gastritis. Methods: A total of 576 patients were enrolled and they underwent modified Endo ABC. They were stratified into 5 groups (A to E) based on the grades of endoscopic findings. H. pylori-infected gastritis status was determined in the following ways: current H. pylori gastritis was defined as active gastritis and/or chronic atrophic gastritis (CAG) seen on endoscopy and positive H. pylori test, naïve H. pylori gastritis was defined as regular arrangement of collecting venules in the angle of the lesser curvature without CAG and negative H. pylori test, and previous H. pylori gastritis was defined as negative H. pylori tests regardless of the presence of CAG. Results: Endo A has 97% accuracy and 100% positive predictive value in diagnosing naïve H. pylori gastritis. Endo E has 97% accuracy and 100% positive predictive value in diagnosing previous H. pylori gastritis. The accuracy of Endo B and Endo C in diagnosing current H. pylori gastritis was 89 and 82% respectively. Endo D has 87% accuracy in diagnosing previous H. pylori gastritis. Conclusion: This study showed that the modified Endo ABC classification enables to accurately determine the H. pylori-infected gastritis status.

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“…Almost all these studies used magnifying NBI endoscopes, and the results revealed a high sensitivity and specificity for diagnosing H. pylori infection (29)(30)(31)(32). First, Alaboudy et al (12) defined four characteristic views of H. pylori infection by using a non-magnifying NBI endoscope and revealed an association between histopathological severity and endoscopic views (Figures 1-4).…”

Section: Discussionmentioning

confidence: 99%

The diagnostic value of endoscopic narrow band imaging in helicobacter pylori gastritis in children

Özgür

Özkan²,

Erdemir³

et al. 2015

Turk J Gastroenterol

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Background/Aims: In this study we aimed to investigate the sensitivity and specificity of Narrow Band Imaging (NBI) in H. pylori gastritis and compare them with those of rapid urease test and urea breath test. Materials and Methods: A hundred sixty-five children who admitted to Uludag University Pediatric Gastroenterology Unit between October 2009-March 2011 with upper gastrointestinal symptoms were consecutively enrolled. During the endoscopy procedure gastric corporeal, antral and fundal images were obtained, afterwards the same areas were visualized with narrow band imaging and images were recorded again. Results: The study included 68 (41.2%) boys and 97(58.8%) girls. The mean age of the patients were 11.88±4.55. Tissue culture positivity and/or histopathological staining for H. pylori was determined in 56 (33.9%) patients (Group 1) and the other patients (n:109, 43.6%) didn't have an evidence of H. pylori infection (Group 2). Narrow band images have supported H. pylori infection in 56.4%. The sensitivity of narrow band images for determining H. pylori infection was 92.86% (95% CI 82.7-98), specificity was 62.39% (95% CI 52.6-71.5). Conclusion: Our study is the first to show the role of NBI in diagnosing H. pylori infection in children, as well as determining the sensitivity and specificity of the technique. The specificity is low; however, we suggest that the specific mucosal view of H. pylori gastritis provided by NBI is useful for identifying the areas from which the biopsies should be taken. Moreover, by using this technique, treatment of H. pylori infection may be initiated immediately without performing rapid urease test and without waiting for histopathology report and tissue culture.

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Usefulness of Magnifying Narrow-Band Imaging Endoscopy in the Helicobacter pylori-Related Chronic Gastritis

Cited by 22 publications

References 41 publications

Detection of the primary lesion in patients with cervical metastases from unknown primary tumors with narrow band imaging endoscopy: Preliminary report

Detection of the primary lesion in patients with cervical metastases from unknown primary tumors with narrow band imaging endoscopy: Preliminary report

Evaluating the Accuracy of the Endoscopic ABC Classification System in Diagnosing Helicobacter pylori-Infected Gastritis

The diagnostic value of endoscopic narrow band imaging in helicobacter pylori gastritis in children

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