High definition endoscopy and "narrow band imaging" in the diagnosis of gastroesophageal reflux disease

Assirati, Frederico Salvador; Hashimoto, Cláudio L.; Dib, Ricardo; Fontes, L.H.S.; Navarro–Rodriguez, Tomás

doi:10.1590/s0102-67202014000100015

Cited by 13 publications

(10 citation statements)

References 27 publications

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“…In the initial works in 1995, some authors concluded that it was not possible to establish this diagnosis based on only endoscopy [8,9]. However, newer technologies such as magnification and chromo endoscopy showed that there endoscopic aspects that are clearly associated with Hp infection, while others relate to uninfected or eradication [10][11][12]. Yagi et al described the characteristics of endoscopic findings with magnification in the gastric body with normal appearance and negative Hp: enanthema in tiny streaks or spots in "pinhole" aspect, which correspond to sub-epithelial capillaries and venules networks called RAC (regular arrangement of collecting venules) [13,14].…”

Section: Introductionmentioning

confidence: 99%

Endoscopic Findings Related To Helicobacter Pylori

2018

MCR

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Background: Studies with the latest technologies such as endoscopy with magnification and chromoendoscopy showed that various endoscopic aspects are clearly related to infection by Helicobacter pylori (Hp). The description of different patterns of erythema in gastric body under magnification of images revived interest in identifying these patterns by standard endoscopy. Aim: To validate the morphologic features of gastric mucosa to conventional gastroscopy Hprelated gastritis allowing predictability of their diagnosis as well as proper targeting biopsies. Methods: Prospective study of 339 consecutive patients with the standard videoendoscope image analysis were obtained, recorded and stored in a program database. These images were studied with respect to the presence or absence of HP, diagnosed by rapid urease test and/or by histological analysis. Were studied: a) normal mucosa appearance; b) mucosal nodularity; c) diffuse nonspecific erythemaor redness of antrum and body; d) mosaic pattern with focal area of hyperemia; e) erythema in streaks or bands (red streaks); f) raised erosions; g) flat erosions; h) fundic gland polyps. The main exclusion criteria were the use of drugs, Hp pre-treatment and other entities that could affect results. Results: Applying the exclusion criteria, were included 170 of the 339 patients, of which 52 (30.58%) were positive for Hp and 118 negative. On the positive findings, the most associated with infection were: antralnodularity (26.92%); raised erosion (15.38%) and mosaic pattern in the body (21,15%). On the negative group the normal appearance of the mucosa was 66.94%; red streaks in 9.32%; flat erosions 11.86%; and fundic gland polyps 11.86%. Conclusion: Endoscopic findings are useful in predicting the outcome, localization and targeting of biopsies in gastritis related to Helicobacter pylori infection.The most representative form of Hp related gastritis was the nodularity of the antralmucosa. Diffuse redness and mosaic pattern in the bodyare closely related to Hp infection.Raised erosions are suggestive but not specific to the infection. Normal-appearing forms, red streaks and fundic gland polyposis are related to the negativity of Helicobacter pylori infection. Flat erosions were not conclusive of the presence or absence of Hp.

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Section: Introductionmentioning

confidence: 99%

Endoscopic Findings Related To Helicobacter Pylori

2018

MCR

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“…In the initial works in 1995, some authors concluded that it was not possible to establish this diagnosis based only on endoscopy [8,9] . However, newer technologies such as magnification and chromo endoscopy [11,12] have shown that there are endoscopic features that are clearly associated with HP infection, while other endoscopic features are related to non-infected cases or cases in which the infection has already been eradicated [10] . Yagi et al [13,14] described the characteristics of endoscopic findings with magnification in the gastric body with normal appearance and negative HP: erythema in tiny streaks or spots in "pinhole" aspect, which correspond to sub epithelial capillaries and venules networks called RAC (Regular Arrangement of Collecting venules).…”

Section: Introductionmentioning

confidence: 99%

Conventional Videoendoscopy and Endoscopic Findings Related to Helicobacter Pylori

Gomes¹,

Skare²,

Internationals³

2017

JGDLF

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Background: Studies with the latest technologies such as endoscopy with magnification and chromo endoscopy showed that various endoscopic aspects are clearly related to infection by Helicobacter pylori (HP). The description of different patterns of erythema in gastric body under magnification of images revived interest in identifying these patterns by standard endoscopy. Aim: Validate endoscopic aspects related to HP found in conventional video gastroscopy, allowing the predictability of the diagnosis as well as proper targeting biopsies. Methods: Prospective study of 339 consecutive patients with the standard video endoscope image analysis were obtained, recorded and stored in a program database. These images were studied with respect to the presence or absence of HP, diagnosed by rapid urease test and/or by histological analysis. Were studied: a) normal mucosa appearance b) mucosal nodularity c) diffuse nonspecific erythema or redness of antrum and body d) mosaic pattern with focal area of hyperemia e) erythema in streaks or bands (red streaks) f) elevated (raised) erosions g) flat erosions h) fundic gland polyps. The main exclusion criteria were the use of drugs, HP pre-treatment and other entities that could affect results. Results: Applying the exclusion criteria, were included 170 of the 339 patients, of which 52 (30.58%) were positive for HP and 118 negative. On the positive findings, the most associated with infection were: antral nodularity (26.92%); raised erosion (15.38%) and mosaic pattern in the body (21.15%). On the negative group the normal appearance of the mucosa was 66.94%; red streaks in 9.32%; flat erosions 11.86%; and fundic gland polyps 11.86%. Conclusion: Endoscopic findings are useful in predicting the outcome, localization and targeting of biopsies in gastritis related to HP infection. The most representative form of HP related gastritis was the nodularity of the antral mucosa. The raised erosion and mosaic pattern in the body are suggestive but not specific to the infection. Normal-appearing forms, red streaks and fundic gland polyposis are related to the negativity of HP infection. The other forms were not conclusive of the presence of HP.

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“…In view of the need for more diagnostic accuracy, high-definition endoscopy with narrow band imaging (NBI) was developed by Olympus Medical System in Japan. [ 6 ] It was first reported by Sano et al ., in 1999 and introduced commercially in 2005. [ 6 7 ] NBI endoscopy is said to be more sensitive in detecting mucosal abnormalities as it is an optical image technology that enhances structural mucosal patterns (pit-pattern), as well as mucosal/submucosal vessels by employing the characteristics of light spectrum.…”

mentioning

confidence: 99%

“…[ 6 ] It was first reported by Sano et al ., in 1999 and introduced commercially in 2005. [ 6 7 ] NBI endoscopy is said to be more sensitive in detecting mucosal abnormalities as it is an optical image technology that enhances structural mucosal patterns (pit-pattern), as well as mucosal/submucosal vessels by employing the characteristics of light spectrum. [ 8 ] It is based on the optical phenomenon that the depth of light penetration into tissues is dependent on the wavelength (415 and 540 nm).…”

mentioning

confidence: 99%

Correlation of narrow band imaging endoscopy and histopathology in the diagnosis of nonerosive reflux disease

Arul

Vinoth

Phansalkar

et al. 2015

Saudi J Gastroenterol

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Background /Aim:Narrow band imaging (NBI) is a novel, innovative high-resolution endoscopic technique, which utilizes spectral narrow band filter for the visualization of mucosal patterns and microvasculature. Nonerosive reflux disease (NERD) is a type of gastroesophageal reflux disease (GERD) and it is characterized by reflux symptoms without mucosal breaks on white light endoscopy (WLE). Biopsies from distal esophagus of GERD patients show group of histologic features such as basal cell hyperplasia, elongation of lamina propria papillae, and inflammatory cells. The present study was undertaken to evaluate diagnostic utility of NBI endoscopy and biopsy study in NERD patients and also to correlate NBI endoscopy findings with histologic features of GERD.Patients and Methods:A total of 71 cases of NERD having symptom score more than 10 and those not having erosion on WLE were recruited prospectively and underwent NBI endoscopic examination. Two mucosal biopsies were taken at 3 cm above the squamocolumnar junction.Results:Histologic features of GERD were seen in 50 (70.4%) out of 71 cases. No significant correlation between NBI endoscopic findings with histologic features of GERD was found.Conclusion:The present study showed that histopathologic evaluation of distal esophageal mucosa has promising diagnostic value over NBI endoscopy in NERD patients. Use of newly introduced NBI technique requires tremendous familiarity for the detection of the cases of NERD, which show histologic features of GERD.

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High definition endoscopy and "narrow band imaging" in the diagnosis of gastroesophageal reflux disease

Cited by 13 publications

References 27 publications

Endoscopic Findings Related To Helicobacter Pylori

Endoscopic Findings Related To Helicobacter Pylori

Conventional Videoendoscopy and Endoscopic Findings Related to Helicobacter Pylori

Correlation of narrow band imaging endoscopy and histopathology in the diagnosis of nonerosive reflux disease

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