Regular arrangement of collecting venules: Does patient age affect its accuracy?

Alaboudy, Alshimaa; Elbahrawy, Ashraf; Matsumoto, Shigemi; Galal, Ghada Moustafa; Chiba, Tsutomu

doi:10.4253/wjge.v3.i6.118

Cited by 15 publications

(12 citation statements)

References 23 publications

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“…Previously, Yagi et al (14,19) reported that RAC in the gastric corpus seen by close observation essentially excluded H. pylori infection. There were also several reports that supported their seminal study (20)(21)(22)(23)(24). Moreover, it has been reported that magnifying narrow-band imaging (NBI) is useful for predicting H. pylori infection (25 In this study, we confirmed that there was good agreement between endoscopic findings and H. pylori status.…”

Section: Discussionsupporting

confidence: 82%

Irregular arrangement of collecting venules (IRAC) provides a critical endoscopic insight in Helicobacter pylori-induced gastritis: A secondary publication

et al. 2012

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The aim of this study was to evaluate the significance of an endoscopic atrophic border and irregular arrangement of collecting venules (IRAC) in the diagnosis of ()-induced gastritis. Upper gastrointestinal tract endoscopy was performed on 723 patients, who were screened them for infection. Any patients who had undergone eradication therapy were excluded from the study. The endoscopic atrophic border and IRAC in each patient were assessed. The status was determined in the patients by combination of a serological test and/or histopathological examination. The infection rates were 95.4% (455/477) in the group with an endoscopic atrophic border and 22.3% (55/246) in the group without an endoscopic atrophic border. In the diagnostic validity check, presence of an endoscopic atrophic border had a sensitivity of 89.2% and a specificity of 89.7%. Furthermore, the infection rates were 95.5% (506/530) in the IRAC group and 2.1% (4/193) in the regular arrangement of collecting venules (RAC) group. In the diagnostic validity check, IRAC had a sensitivity of 99.2% and a specificity of 88.7%. In conclusion, the presence of an endoscopic atrophic border and IRAC are highly indicative of an-infected gastric mucosa.

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Section: Discussionsupporting

confidence: 82%

Irregular arrangement of collecting venules (IRAC) provides a critical endoscopic insight in Helicobacter pylori-induced gastritis: A secondary publication

et al. 2012

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“…Two studies used retrospective image collection but were deemed only medium risk of bias; these were therefore included in the analysis. 37,38 Overall, the studies showed low risk of bias and good applicability. The results are displayed in Figure 2.…”

Section: Quality Assessmentmentioning

confidence: 87%

The endoscopic predictors of Helicobacter pylori status: a meta-analysis of diagnostic performance

Glover

Teare

Ashrafian

et al. 2020

Clin Med Insights Gastroenterol

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Objective: The endoscopic findings associated with Helicobacter pylori–naïve status, current infection or past infection are an area of ongoing interest. Previous studies have investigated parameters with a potential diagnostic value. The aim of this study was to perform meta-analysis of the available literature to validate the diagnostic accuracy of mucosal features proposed in the Kyoto classification. Data sources: The databases of MEDLINE and Embase, clinicalTrials.gov and the Cochrane Library were systematically searched for relevant studies from October 1999 to October 2019. Methods: A bivariate random effects model was used to produce pooled diagnostic accuracy calculations for each of the studied endoscopic findings. Diagnostic odds ratios and sensitivity and specificity characteristics were calculated to identify significant predictors of H pylori status. Results: Meta-analysis included 4380 patients in 15 studies. The most significant predictor of an H pylori-naïve status was a regular arrangement of collecting venules (diagnostic odds ratio 55.0, sensitivity 78.3%, specificity 93.8%). Predictors of active H pylori infection were mucosal oedema (18.1, 63.7%, 91.1%) and diffuse redness (14.4, 66.5%, 89.0%). Map-like redness had high specificity for previous H pylori eradication (99.0%), but poor specificity (13.0%). Conclusion: The regular arrangement of collecting venules, mucosal oedema, diffuse redness and map-like redness are important endoscopic findings for determining H pylori status. This meta-analysis provides a tentative basis for developing future endoscopic classification systems.

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“…Nodularity was characterized by the appearance of multiple white raised lesions in the pyloric gland mucosa, and the presence of nodularity was scored as 1[ 24 , 25 ]. Diffuse redness referred to uniform redness involving the entire fundic gland mucosa, and the presence of diffuse redness with RACs was rated as 1 and without RACs as 2[ 10 , 15 ]. After the diagnosis of gastric cancer, the tumor size, histological type, the Union for International Cancer Control cancer stage, and treatment modality were recorded in clinical chart and database.…”

Section: Methodsmentioning

confidence: 99%

“…Atrophy, intestinal metaplasia, enlarged folds, and nodularity contribute to gastric cancer risk. Diffuse redness and regular arrangement of collecting venules (RACs) are related to H. pylori infection status[ 13 , 15 ]. Toyoshima et al[ 13 ] described that a Kyoto classification score ≥ 2 indicates H. pylori infection, and a Kyoto classification score ≥ 4 might indicates gastric cancer risk.…”

Section: Introductionmentioning

confidence: 99%

Kyoto classification in patients who developed multiple gastric carcinomas after Helicobacter pylori eradication

Sakitani¹,

Nishizawa²,

Toyoshima³

et al. 2020

WJGE

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BACKGROUND Endoscopic Kyoto classification predicts gastric cancer risk; however, the score in the patients with primary gastric cancer after Helicobacter pylori ( H. pylori ) eradication therapy is unknown. AIM To elucidate the Kyoto classification score in patients with both single gastric cancer and multiple gastric cancers developed after H. pylori eradication. METHODS The endoscopist recorded the Kyoto classification at the endoscope and the Kyoto classification score at the time of the first diagnosis of gastric cancer after H. pylori eradication. The score was compared between single gastric cancer group and multiple gastric cancers group. RESULTS The Kyoto score at the time of diagnosis of 45 cases of gastric cancer after H. pylori eradication was 4.0 points in average. The score was 3.8 points in the single gastric cancer group, and 5.1 points in the multiple gastric cancers group. The multiple group had a significantly higher score than the single group ( P = 0.016). In the multiple gastric cancers group, all the patients (7/7) had 5 or higher Kyoto score, while in single gastric cancer group, the proportion of patients with a score of 5 or higher was less than half, or 44.7% (17/38). CONCLUSION Patients diagnosed with gastric cancer after H. pylori eradication tended to have advanced gastritis. In particular, in cases of multiple gastric cancers developed after H. pylori eradication, the endoscopic Kyoto classification score tended to be 5 or higher in patients with an open type atrophic gastritis and the intestinal metaplasia extended to the corpus.

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Regular arrangement of collecting venules: Does patient age affect its accuracy?

Cited by 15 publications

References 23 publications

Irregular arrangement of collecting venules (IRAC) provides a critical endoscopic insight in Helicobacter pylori-induced gastritis: A secondary publication

Irregular arrangement of collecting venules (IRAC) provides a critical endoscopic insight in Helicobacter pylori-induced gastritis: A secondary publication

The endoscopic predictors of Helicobacter pylori status: a meta-analysis of diagnostic performance

Kyoto classification in patients who developed multiple gastric carcinomas after Helicobacter pylori eradication

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