Characteristic endoscopic and magnified endoscopic findings in the normal stomach without <i>Helicobacter pylori</i> infection

Yagi, Kazuichi; Nakamura, Atsuo; Sekine, Atsuo

doi:10.1046/j.1440-1746.2002.02665.x

Cited by 177 publications

(219 citation statements)

References 15 publications

Supporting

Mentioning

208

Contrasting

Unclassified

Order By: Relevance

“…Compared to previous studies [11,13,14] we detected lower rates for RAC specificity and accuracy (66.1%, 68.1% respectively). The main difference between our study and others is the age of studied population.…”

Section: Discussioncontrasting

confidence: 95%

“…Previous studies [11,13,14] have reported good sensitivity, specificity and accuracy (around 95 %), for RAC in detecting normal gastric mucosa. This was in agreement with our results in terms of RAC sensitivity (91.7%).…”

Section: Discussionmentioning

confidence: 91%

“…Regular arrangement of collecting venules (RAC) is considered as a conventional endoscopic sign for identifying normal gastric mucosa [10] . Using standard endoscopy, RAC is visible as numerous minute starfish-like points covering the entire gastric corpus [11] . Previous studies [11][12][13][14] have reported reasonable accuracy of RAC in detecting normal gastric mucosa.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Alaboudy

Elbahrawy²,

Matsumoto³

et al. 2011

WJG

View full text Add to dashboard Cite

AIM:To address the diagnostic value of the regular arrangement of collecting venules (RAC) among old age patients. METHODS: A total of 390 consecutive patients whoseHelicobacter pylori (H. pylori ) status was known and who received upper gastrointestinal endoscopy, were retrospectively studied for the presence or absence of RAC as well as gastric mucosal atrophy. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of RAC to detect normal gastric mucosa were assessed and were compared among two different age groups of patients. RESULTS:The mean age ± standard deviation (SD) of included patients (n = 390), was 62.9 ± 13 years. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of RAC to detect normal gastric mucosa were 91.7%, 66.1%, 18.8%, 99% and 68.1% respectively. Although the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of RAC among patients < 60 years (n = 139) was 94.7%, 71.2%, 46.2%, 98.1%and 76.1%, respectively, it was 80%, 64.3%, 5.1%, 93% and 64.6%, respectively, among patients ≥ 60 years (n = 251). Younger Patients (< 60 years), have highly significant rates of RAC sensitivity, positive predictive value, and accuracy (P ≤ 0.001, ≤ 0.001 and ≤ 0.02, respectively). Older patients had highly significant rates of H. pylori infection and gastric mucosal atrophy (P ≤ 0.01). CONCLUSION:Although RAC is a valuable sign for real-time identification of normal gastric mucosa, its accuracy seems to be affected by the patient's age.

show abstract

Section: Discussioncontrasting

confidence: 95%

Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Alaboudy

Elbahrawy²,

Matsumoto³

et al. 2011

WJG

View full text Add to dashboard Cite

show abstract

“…Yagi et al [4] reported that in standard endoscopy, RAC is visible as numerous minute red points in the corpus of the noninfected stomach, which cannot be visualized in HP gastritis. As a determinant of a normal stomach without HP infection, the presence of RAC showed 93.8 % sensitivity and 96.2 % specificity [5]. Moreover, Miki [6] reported that a positive pepsinogen test result was significantly more likely in patients with HP?…”

Section: Methodsmentioning

confidence: 99%

Biological behavior of the intramucosal Helicobacter pylori-negative undifferentiated-type early gastric cancer: comparison with Helicobacter pylori-positive early gastric cancer

et al. 2014

View full text Add to dashboard Cite

Background The differences in the growth morphology, proliferative ability, and background mucosa of the cancer between Helicobacter pylori (HP)-positive (HP?) gastric cancer (GC) and HP-negative (HP-) GC are still unclear.To clarify the differences, we compared the characteristics of the two types of cancer. Methods Of the 91 patients with undifferentiated-type early GC who underwent endoscopic treatment at our hospital between August 2005 and April 2011, 23 HP-GC patients (all of whom had signet ring cell carcinoma measuring 20 mm or less in diameter) and 46 HP? GC patients with signet ring cell carcinoma measuring 20 mm or less in diameter (out of a total of 68 HP? GC patients) were enrolled in this study. Endoscopic atrophy and background mucosa were classified according to the updated Sydney system. The proliferative capacity of the cancer was assessed by examining the MIB-1 labeling index.Results With regard to the growth in the mucosal layer, the proportion of patients with cancer confined to the proliferative zone was significantly higher in the HP-GC group. Moderate or severer atrophy, intestinal metaplasia, mononuclear cell infiltration, and neutrophil infiltration according to the updated Sydney system were significantly commoner in the HP? GC patients. Also, the MIB-1 labeling index was significantly higher in the HP? GC group. Conclusion HP? GC appeared to show a higher proliferative capacity, more extensive spread, and more rapid progression, and inflammation associated with HP infection was suggested to be involved in the proliferation of this type of GC.

show abstract

“…The ratio of seeing H. Pylori if any, by means of a properly performed stomach biopsy is almost 100%. The sensitivity of the endoscopes with high resolution is quite high in defining the stomach mucosa abnormalities and determining the H. Pylori positive mucosal pattern [16][17][18]. The mucosa structure normally seen endoscopically, is normal also as histopathologically.…”

Section: Discussionmentioning

confidence: 99%

The Impact of Endoscopy Training During Residency on the Diagnostic

Eryılmaz¹

2015

Ann Clin Anal Med

View full text Add to dashboard Cite

ÖzetAmaç: Cerrahların asistanlığı süresince endoskopi eğitimi almış olmasının, endoskopik tanı üzerine etkisini değerlendirmeyi amaçladık. Gereç ve Yön-tem: Cerrahi Endoskopi Ünitesin de 2009-2011 tarihleri arasında endoskopi yapılan hastalara ait dosyalar retrospektif olarak incelendi. Endoskopistler asistanlığı süresince endoskopi eğitimi alanlar (Grup I) ve almayanlar (Grup II) olarak ayırıldı. Endoskopik tanıyı doğrulama yöntemi olarak biyopsi sonucu kabul edildi. Endoskopi sonuçları ile biyopsi sonuçları karşılaştırılarak endoskopistin tanı koymadaki tutarlılığı hesaplandı. Bulgular: Üç yıllık süre içinde 9055 hastaya endoskopi işlemi yapılmış, 1285 (%14) hastadan biyopsi alın-mıştı. Hastaların yaş ortalaması 54 (15-94) idi. 15 genel cerrahi uzmanından 8 tanesi grup I' de, 7 taneside grup II' de idi. Grup I ve Grup II endoskopistlerin tanıları ile alınan biyopsi sonuçları karşılaştırıldı. Üst GİS endoskopi işle-minde grup I endoskopistler %79 tutarlılık gösterirken grup II endoskopistler %72 tutarlılık göstermiş olup fark anlamlı idi (P=0.035). Alt GİS endoskopi iş-leminde ise Grup I %79 tutarlılık gösterirken Grup II %80 tutarlılık göstermiş olup fark anlamlı değil idi (P=0.709). Tartışma: Endoskopi yapan cerrahların asistanlığı süresince endoskopi eğitimi alarak yetişmeleri üst GİS lezyonlarını doğru tanıma üzerine olumlu katkı sağlamıştır. Anahtar KelimelerEndoskopi; Asistanlık; Tanı Abstract Aim: The aim of the study is to evaluate the impact of endoscopy training during residency on endoscopic diagnosis. Material and Method: the patients files who had undergone endoscopy between 2009 and 2011 in surgical endoscopy unit, retrospectively evaluated. Endoscopists were divided into 2 groups as endoscopy training during residency (group 1) or than after (group 2). Histopathological evaluation was accepted as the method to confirm the diagnosis. Endoscopic and pathological diagnoses were compared and the consistencies of the Endoscopists were calculated. Results: There were 9055 endoscopic evaluation and 1285 biopsies were taken in 3 years period. The mean age of the patients were 54 (15-94). There were 15 surgeons, 8 in group 1, 7 in group 2. In upper gastrointestinal system endoscopy the consistency rates were 79% in group 1 and 72% in group 2 (p=0,035). In lower gastrointestinal system endoscopy, the consistency rates were 79% in group 1 and 80% in group 2 (p=0,709). Discussion: Endoscopy training during residency has positive impact on identification of upper gastrointestinal system lesions.

show abstract

Characteristic endoscopic and magnified endoscopic findings in the normal stomach without Helicobacter pylori infection

Abstract: The presence of RAC is characteristic of a normal stomach without H. pylori. Magnified views of the normal antrum were different from that of the normal corpus.

Cited by 177 publications

References 15 publications

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

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

Biological behavior of the intramucosal Helicobacter pylori-negative undifferentiated-type early gastric cancer: comparison with Helicobacter pylori-positive early gastric cancer

The Impact of Endoscopy Training During Residency on the Diagnostic

Contact Info

Product

Resources

About