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Magnifying endoscopy

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https://www.readbyqxmd.com/read/28395383/extending-magnifying-nbi-diagnosis-of-intestinal-metaplasia-in-the-stomach-the-white-opaque-substance-marker
#1
Takao Kanemitsu, Kenshi Yao, Takashi Nagahama, Kentaro Imamura, Shoko Fujiwara, Toshiharu Ueki, Kenta Chuman, Hiroshi Tanabe, Ota Atsuko, Akinori Iwashita, Toshio Shimokawa, Kunihisa Uchita, Takashi Kanesaka
Light-blue crests and white opaque substance are two features of intestinal metaplasia in the stomach that can be observed with magnifying narrow-band imaging. In a prospective pilot trial, Kanemitsu et al. show that combining these two findings significantly improves the sensitivity for detecting intestinal metaplasia. Background and aims Intestinal metaplasia (IM) of the stomach is associated with an increased risk of differentiated gastric cancer. While it is important to diagnose IM endoscopically, it can be difficult to observe by white-light endoscopy...
April 10, 2017: Endoscopy
https://www.readbyqxmd.com/read/28386209/prediction-of-the-invasion-depth-of-superficial-squamous-cell-carcinoma-based-on-microvessel-morphology-magnifying-endoscopic-classification-of-the-japan-esophageal-society
#2
Tsuneo Oyama, Haruhiro Inoue, Miwako Arima, Kumiko Momma, Tai Omori, Ryu Ishihara, Dai Hirasawa, Manabu Takeuchi, Akihisa Tomori, Kenichi Goda
Predicting invasion depth of superficial esophageal squamous cell carcinoma is crucial in determining the precise indication for endoscopic resection because the rate of lymph node metastasis increases in proportion to the invasion depth of the carcinoma. Previous studies have shown a close relationship between microvascular patterns observed by Narrow Band Imaging magnifying endoscopy and invasion depth of the superficial carcinoma. Thus, the Japan Esophageal Society (JES) developed a simplified magnifying endoscopic classification for estimating invasion depth of superficial esophageal squamous cell carcinomas...
2017: Esophagus: Official Journal of the Japan Esophageal Society
https://www.readbyqxmd.com/read/28382328/clinical-usefulness-of-magnifying-endoscopy-for-non-ampullary-duodenal-tumors
#3
Takeshi Mizumoto, Yoji Sanomura, Shinji Tanaka, Kazutoshi Kuroki, Mio Kurihara, Yoshikazu Yoshifuku, Shiro Oka, Koji Arihiro, Fumio Shimamoto, Kazuaki Chayama
Study aims This study aimed to investigate the clinical usefulness of magnifying endoscopy (ME) for non-ampullary duodenal tumors. Patients and methods We enrolled 103 consecutive patients with non-ampullary duodenal tumors that were observed by ME with narrow-band imaging (ME-NBI) and had pit pattern analysis before endoscopic resection at Hiroshima University Hospital before December 2014. ME-NBI images were classified as Type B or Type C according to the Hiroshima classification, and pit patterns were classified as regular or irregular...
April 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28315801/use-of-indocyanine-green-fluorescence-endoscopy-to-treat-concurrent-perimedullary-and-dural-arteriovenous-fistulas-in-the-cervical-spine
#4
Akira Ito, Toshiki Endo, Tomoo Inoue, Hidenori Endo, Kenichi Sato, Teiji Tominaga
BACKGROUND: Intraoperative microscopic fluorescence angiography using indocyanine green (ICG) provides visual information on real-time blood flow. However, this method cannot be applied for lesions that are not visible under microscopic imaging because excitation light does not reach the targeted vascular structures. Endoscope-integrated ICG video-angiography has recently been advocated to compensate for this limitation. This is the first reported case of a spinal arteriovenous malformation in which endoscope-integrated ICG video-angiography was successfully used...
March 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28275307/effects-of-hydrotalcite-combined-with-esomeprazole-on-gastric-ulcer-healing-quality-a-clinical-observation-study
#5
Rui-Qi Yang, Hua Mao, Li-Yun Huang, Pei-Zhu Su, Min Lu
AIM: To evaluate the effects of hydrotalcite combined with esomeprazole on gastric ulcer healing quality. METHODS: Forty-eight patients diagnosed with gastric ulcer between June 2014 and February 2016 were randomly allocated to the combination therapy group or monotherapy group. The former received hydrotalcite combined with esomeprazole, and the latter received esomeprazole alone, for 8 wk. Twenty-four healthy volunteers were recruited and acted as the healthy control group...
February 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28260713/a-case-of-gastric-type-adenoma-with-chief-cell-and-parietal-cell-differentiation-surrounded-by-complete-intestinal-metaplasia
#6
Ryutaro Furukawa, Tsuneo Oyama, Akiko Takahashi, Nobukazu Yorimitsu, Tadakazu Shimoda, Hiroyoshi Ota, Satoshi Shiozawa
A man in his 70s received Helicobacter pylori eradication therapy after endoscopic submucosal dissection (ESD) of the stomach. A small, yellowish, protuberant lesion was later observed on the anterior wall of the lower body of the stomach on surveillance esophagogastroduodenoscopy. Narrow band imaging-magnified endoscopy showed an irregular pit and net-like vascular pattern, with the background mucosa having a light blue crest pattern. A biopsy was performed, which led to a diagnosis of adenoma with a gastric phenotype, so repeat ESD was performed...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/28258560/new-subtype-of-gastric-adenocarcinoma-mixed-fundic-and-pyloric-mucosa-type-adenocarcinoma
#7
Takashi Kanesaka, Noriya Uedo, Kenshi Yao, Hiroshi Tanabe, Yasushi Yamasaki, Yoji Takeuchi, Akinori Iwashita, Yasuhiko Tomita
A 73-year-old woman underwent upper endoscopic screening that revealed a 30-mm superficial elevated lesion in the anterior wall of the upper gastric body. The lesion had a whitish color and coarse granular surface in conventional white light endoscopy. Magnifying narrow-band imaging indicated irregular microvascular and microsurface patterns within a demarcation line. The microvessels had a distorted polygonal shape within the area surrounded by the marginal crypt epithelium. The patient underwent endoscopic resection...
March 3, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28248842/role-of-targeted-biopsy-under-magnifying-endoscopy-with-narrow-band-imaging-may-be-not-necessary-a-prospective-diagnostic-accuracy-study
#8
Qing-Wei Zhang, Ying Zhou, Jing-Jing Zhang, Hai-Yan Li, Jie-Ying Song, Zhi-Zheng Ge, Xiao-Bo Li
BACKGROUND AND AIMS: Targeted biopsy under the guidance of magnifying endoscopy with narrow band imaging (ME-NBI) has higher accuracy than endoscopic forceps biopsy (EFB) in the differential diagnosis of cancerous lesions from noncancerous lesions. The aims of this study were to validate diagnostic efficacy of targeted biopsy under the guidance of ME-NBI (MNTB) and further evaluate whether it is necessary to perform MNTB when combined with ME-NBI. METHODS: This study prospectively analyzed 211 gastric lesions of suspected cancerous tissues...
April 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28238013/lanthanum-deposition-in-the-stomach-usefulness-of-scanning-electron-microscopy-for-its-detection
#9
Masaya Iwamuro, Haruo Urata, Takehiro Tanaka, Akemi Ando, Takahiro Nada, Kosuke Kimura, Kenji Yamauchi, Chiaki Kusumoto, Fumio Otsuka, Hiroyuki Okada
After having been treated with lanthanum carbonate administration for 4 years for hyperphosphatemia, a 75-year-old Japanese woman undergoing hemodialysis was diagnosed with lanthanum phosphate deposition in the stomach. The deposition, seen as white microgranules, was observed using esophagogastroduodenoscopy with magnifying observation. To the best of our knowledge, these are the minutest endoscopy images of lanthanum phosphate deposition in the gastric mucosa. Scanning electron microscopy (SEM) observation enabled easier identification of the deposited material, which was visible as bright areas...
February 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/28201841/evaluation-of-narrow-band-imaging-signs-in-eosinophilic-and-lymphocytic-esophagitis
#10
Tamaki Ichiya, Kyosuke Tanaka, Carlos A Rubio, Ulf Hammar, Peter T Schmidt
Background and study aims No specific endoscopic signs for diagnosing eosinophilic esophagitis (EoE) have been described and very few studies have reported endoscopic signs for lymphocytic esophagitis (LyE). This study aimed to assess the utility of narrow-band imaging magnifying endoscopy (NBI-ME) in predicting EoE/LyE diagnosis before histopathological assessment. Patients and methods Adult patients with dysphagia and/or food impaction who underwent esophagogastroduodenoscopy followed by NBI-ME and biopsies were included...
February 15, 2017: Endoscopy
https://www.readbyqxmd.com/read/28160332/histopathological-analysis-of-cold-snare-polypectomy-and-its-indication-for-colorectal-polyps-10-14mm-in-diameter
#11
Ryohei Hirose, Naohisa Yoshida, Takaaki Murakami, Kiyoshi Ogiso, Yutaka Inada, Osamu Dohi, Tetsuya Okayama, Kazuhiro Kamada, Kazuhiko Uchiyama, Osamu Handa, Takeshi Ishikawa, Hideyuki Konishi, Yuji Naito, Yasuko Fujita, Mitsuo Kishimoto, Akio Yanagisawa, Yoshito Itoh
BACKGROUND AND AIM: Cold snare polypectomy (CSP) is commonly used for treating colorectal polyps <10 mm in diameter. We evaluated the histopathological and safety of CSP for larger polyps. METHODS: We retrospectively analyzed 1,006 colorectal polyps resected with CSP. The indication for CSP was polyps 2-14 mm that were diagnosed as benign neoplastic polyp by magnifying endoscopy. Various clinicopathological characteristics were analyzed. Multivariate analyses were utilized to determine the independent risk factors for failure of complete CSP resection...
February 3, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28152974/endoscopic-imaging-modalities-for-diagnosing-invasion-depth-of-superficial-esophageal-squamous-cell-carcinoma-a-systematic-review-and-meta-analysis
#12
REVIEW
Ryu Ishihara, Noriko Matsuura, Noboru Hanaoka, Sachiko Yamamoto, Tomofumi Akasaka, Yoji Takeuchi, Koji Higashino, Noriya Uedo, Hiroyasu Iishi
BACKGROUND: Diagnosis of cancer invasion depth is crucial for selecting the optimal treatment strategy in patients with gastrointestinal cancers. We conducted a meta-analysis to determine the utilities of different endoscopic modalities for diagnosing invasion depth of esophageal squamous cell carcinoma (SCC). METHODS: We conducted a comprehensive search of MEDLINE, Cochrane Central, and Ichushi databases to identify studies evaluating the use of endoscopic modalities for diagnosing invasion depth of superficial esophageal SCC...
February 2, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/27998304/foveolar-gastric-metaplasia-presenting-as-a-duodenal-tumor-with-an-atypical-appearance-a-case-report
#13
Takahiro Abe, Masayuki Kato, Shuzo Kohno, Sigeharu Hamatani, Yosuke Kawahara, Kimio Isshi, Koji Matsuda, Kazuki Sumiyama
BACKGROUND: Foveolar gastric metaplasia of the duodenum is a frequent but not as yet considered correlate of endoscopically detected duodenal polyps. The majority of foveolar gastric metaplasias associated with polyps presented a typical benign endoscopic appearance and they were diagnosed by biopsy. Here we report a case of a surgical-resected foveolar gastric metaplasia manifesting as a duodenal tumor with an atypical appearance. CASE PRESENTATION: An asymptomatic 56-year-old Asian man who presented with a foveolar gastric metaplasia of atypical appearance and had previously undergone esophagogastroduodenoscopy was referred to our hospital...
December 20, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27992489/diagnostic-performance-of-magnifying-endoscopy-for-helicobacter-pylori-infection-a-meta-analysis
#14
Qingqing Qi, Chuanguo Guo, Rui Ji, Zhen Li, Xiuli Zuo, Yanqing Li
BACKGROUND: Diagnosis of Helicobacter pylori (H. pylori) infection using magnifying endoscopy offers advantages over conventional invasive and noninvasive tests. OBJECTIVE: This meta-analysis aimed to assess the diagnostic performance of magnifying endoscopy in the prediction of H. pylori infection. METHODS: A literature search of the PubMed, Medline, EMBASE, Science Direct and the Cochrane Library databases was performed. A random-effects model was used to calculate the diagnostic efficiency of magnifying endoscopy for H...
2016: PloS One
https://www.readbyqxmd.com/read/27977882/helicobacter-pylori-negative-early-gastric-adenocarcinoma-with-complete-intestinal-mucus-phenotype-mimicking-verrucous-gastritis
#15
LETTER
Shunsuke Yoshii, Yoshito Hayashi, Tetsuo Takehara
No abstract text is available yet for this article.
December 15, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/27915451/interobserver-agreement-in-detection-of-white-globe-appearance-and-the-ability-of-educational-lectures-to-improve-the-diagnosis-of-gastric-lesions
#16
Hitoshi Omura, Naohiro Yoshida, Tomoyuki Hayashi, Kazuhiro Miwa, Hajime Takatori, Hirokazu Tsuji, Katsuhisa Inamura, Yukihiro Shirota, Hiroyuki Aoyagi, Takaharu Masunaga, Kazuyoshi Katayanagi, Hiroshi Kurumaya, Shuichi Kaneko, Hisashi Doyama
BACKGROUND: White globe appearance (WGA) refers to a small white lesion of globular shape underneath cancerous gastric epithelium that can be clearly visualized by magnifying endoscopy with narrowband imaging (M-NBI). WGA has been reported to be a novel endoscopic marker that is highly specific in differentiating early gastric cancer (GC) from low-grade adenoma, and has a significantly higher prevalence in early GCs than in noncancerous lesions. However, interobserver agreement in detecting WGA and whether training intervention can improve diagnostic accuracy are unknown...
December 3, 2016: Gastric Cancer
https://www.readbyqxmd.com/read/27904859/endoscopic-approach-for-superficial-colorectal-neoplasms
#17
REVIEW
Jun-Feng Xu, Lang Yang, Peng Jin, Jian-Qiu Sheng
BACKGROUND: Colorectal cancer (CRC) is the third most commonly diagnosed cancer in males and the second in females, with an estimated 1.4 million cases and 693,900 deaths in 2012. Colonoscopy is the cornerstone for the detection and prevention of CRC. In addition, endoscopic treatment for CRC at an early stage can effectively improve patients' quality of life and cure rate. SUMMARY: This review focuses on endoscopic approaches, including white light endoscopy, chromoendoscopy, magnifying endoscopy and therapeutic endoscopy, for the evaluation and treatment of superficial colorectal neoplasms...
October 2016: Gastrointestinal Tumors
https://www.readbyqxmd.com/read/27895406/simplified-criteria-for-diagnosing-superficial-esophageal-squamous-neoplasms-using-narrow-band-imaging-magnifying-endoscopy
#18
Akira Dobashi, Kenichi Goda, Noboru Yoshimura, Tomohiko R Ohya, Masayuki Kato, Kazuki Sumiyama, Masato Matsushima, Shinichi Hirooka, Masahiro Ikegami, Hisao Tajiri
AIM: To simplify the diagnostic criteria for superficial esophageal squamous cell carcinoma (SESCC) on Narrow Band Imaging combined with magnifying endoscopy (NBI-ME). METHODS: This study was based on the post-hoc analysis of a randomized controlled trial. We performed NBI-ME for 147 patients with present or a history of squamous cell carcinoma in the head and neck, or esophagus between January 2009 and June 2011. Two expert endoscopists detected 89 lesions that were suspicious for SESCC lesions, which had been prospectively evaluated for the following 6 NBI-ME findings in real time: "intervascular background coloration"; "proliferation of intrapapillary capillary loops (IPCL)"; and "dilation", "tortuosity", "change in caliber", and "various shapes (VS)" of IPCLs (i...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27884517/endoscopic-morphologic-features-of-ulcerative-colitis-associated-dysplasia-classified-according-to%C3%A2-the%C3%A2-scenic%C3%A2-consensus-statement
#19
Shinya Sugimoto, Makoto Naganuma, Yasushi Iwao, Katsuyoshi Matsuoka, Masayuki Shimoda, Shuji Mikami, Shinta Mizuno, Yoshihiro Nakazato, Kosaku Nanki, Nagamu Inoue, Haruhiko Ogata, Takanori Kanai
BACKGROUND AND AIMS: Recent advances in endoscopic equipment and diagnostic techniques have made possible the detection of early dysplasia in the inflamed mucosa of ulcerative colitis (UC). The SCENIC consensus statement recommends the use of unified terminology for the morphology of dysplasia. In this study, we investigated the endoscopic features of high-grade dysplasia (HGD) in a clinical setting. METHODS: We retrospectively identified 62 patients with UC who were diagnosed with colitis-associated cancer or HGD between 1997 and 2015...
March 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27853747/can-magnifying-endoscopy-with-narrow-band-imaging-discriminate-between-carcinomas-and-low-grade-adenomas-in-gastric-superficial-elevated-lesions
#20
Takashi Nonaka, Masahiko Inamori, Yasushi Honda, Kenji Kanoshima, Yumi Inoh, Mizue Matsuura, Shiori Uchiyama, Eiji Sakai, Takuma Higurashi, Hidenori Ohkubo, Hiroshi Iida, Hiroki Endo, Koji Fujita, Akihiko Kusakabe, Kazuhiro Atsukawa, Hisao Takahashi, Yoko Tateishi, Shin Maeda, Kenichi Ohashi, Atsushi Nakajima
Background and study aims: The aim of this study was to investigate the capability of magnifying endoscopy with narrow-band imaging (ME-NBI) to discriminate between early carcinomas (EC) and low grade adenomas (LGA) in gastric superficial elevated epithelial neoplasias. Patients and methods: We investigated 100 consecutive cases of gastric superficial elevated epithelial neoplasias that were removed using endoscopic submucosal dissection. The pathological diagnostic criteria were based on the revised Vienna classification; category 4 (mucosal high grade neoplasia) and category 5 (submucosal invasion by carcinoma) lesions were diagnosed as EC, whereas category 3 (mucosal low grade neoplasia) lesions were diagnosed as LGA...
November 2016: Endoscopy International Open
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