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Kaname Uno, Katsunori Iijima, Yasuhiko Abe, Tomoyuki Koike, Yasushi Takahashi, Nobuyuki Ara, Tooru Shimosegawa
PURPOSE: Endoscopic diagnosis of gastric cancer (GC) that emerges after eradication of Helicobacter pylori may be affected by unique morphological changes. Using comprehensive endoscopic imaging, which can reveal biological alterations in gastric mucosa after eradication, previous studies demonstrated that Congo red chromoendoscopy (CRE) might clearly show an acid non-secretory area (ANA) with malignant potential, while autofluorescence imaging (AFI) without drug injection or dyeing may achieve early detection or prediction of GC...
September 2016: Journal of Gastric Cancer
Liseth Rivero-Sanchez, Maria Lopez-Ceron, Sabela Carballal, Leticia Moreira, Xavier Bessa, Anna Serradesanferm, Angels Pozo, Josep Maria Augé, Teresa Ocaña, Ariadna Sánchez, María Liz Leoz, Míriam Cuatrecasas, Jaume Grau, Josep Llach, Antoni Castells, Francesc Balaguer, Maria Pellisé
Background and study aims: Serrated polyposis syndrome (SPS) is a high risk condition for colorectal cancer (CRC). Surveillance strategies for patients with serrated lesions remain controversial. We aimed to evaluate a diagnostic strategy to detect SPS consistently during reassessment colonoscopy in patients with proximal serrated lesions. Methods: This was a retrospective study of all individuals from a fecal immunochemical test (FIT)-based CRC screening program (2010 - 2013) with one or more serrated lesions of ≥ 5 mm proximal to the sigmoid colon on baseline colonoscopy...
October 14, 2016: Endoscopy
Abolfazl Mehdizadehkashi, Kobra Tahermanesh, Abbas Fazel Anvari-Yazdi, Shahla Chaichian, Negar Azarpira, Malihe Nobakht, Seyedeh Mehr Abed, Neda Hashemi
STUDY OBJECTIVE: In general, in the context of chronic pelvic pain (CPP) and endometriosis, there is no established relationship between the severity of pain and stage of endometriosis. The aim of this study was to evaluate the pelvic peritoneum under chromoendoscopy by Scanning Electron Microscopy (SEM) as well as light microscopy with H&E staining and immunohistochemical assay in patients of CPP associated with subtle endometriosis. DESIGN: Case series study. DESIGN: classification: Canadian Task Force classification II...
September 29, 2016: Journal of Minimally Invasive Gynecology
Anda Carmen Achim, Stefan Cristian Vesa, Eugen Dumitru
BACKGROUND: Diagnosis of portal hypertensive gastropathy (PHG) is based on endoscopic criteria. I-scan technology, a new technique of virtual chromoendoscopy, increases the diagnostic accuracy for lesions in the gastrointestinal tract. AIM: To establish the role of i-scan endoscopy in the diagnosis of PHG. METHOD: In this prospective study, endoscopic examination was conducted first by using white light and after that i-scan 1 and i-scan 2 technology in a group of 50 consecutive cirrhotic patients...
September 2016: Journal of Gastrointestinal and Liver Diseases: JGLD
Y Backes, A Moss, J B Reitsma, P D Siersema, L M G Moons
OBJECTIVES: Optical diagnosis of T1 colorectal cancer (CRC) and T1 CRC with deep submucosal invasion is important in guiding the treatment strategy. The use of advanced imaging is not standard clinical practice in Western countries. A systematic review and meta-analysis were conducted comparing the accuracy of narrow band imaging (NBI), magnifying chromoendoscopy (MCE), and gross morphological features (GMF) seen with conventional view for the optical diagnosis of T1 CRC and deep submucosal invasion...
September 20, 2016: American Journal of Gastroenterology
J R Ten Hove, E Mooiweer, E Dekker, A E van der Meulen-de Jong, G J A Offerhaus, C Y Ponsioen, P D Siersema, B Oldenburg
BACKGROUND & AIMS: When dysplastic lesions are encountered during surveillance colonoscopy of patients with inflammatory bowel diseases (IBD), guidelines recommend collection of additional biopsies from the surrounding mucosa, to ensure the lesion has been adequately circumscribed. We aimed to determine the rate of dysplasia in mucosa biopsies collected from tissues surrounding dysplastic lesions during IBD surveillance. METHODS: In a retrospective study, we collected endoscopy and pathology reports from 1065 patients undergoing colonoscopic surveillance for IBD, from 2000 through 2015, at 3 centers in the Netherlands...
September 6, 2016: Clinical Gastroenterology and Hepatology
Sabela Carballal, Sandra Maisterra, Antonio López-Serrano, Antonio Z Gimeno-García, María Isabel Vera, José Carlos Marín-Garbriel, José Díaz-Tasende, Lucía Márquez, Marco Antonio Álvarez, Luis Hernández, Luisa De Castro, Jordi Gordillo, Ignasi Puig, Pablo Vega, Marco Bustamante-Balén, Juan Acevedo, Beatriz Peñas, María López-Cerón, Elena Ricart, Miriam Cuatrecasas, Mireya Jimeno, María Pellisé
OBJECTIVE: Outside clinical trials, the effectiveness of chromoendoscopy (CE) for long-standing IBD surveillance is controversial. We aimed to assess the effectiveness of CE for neoplasia detection and characterisation, in real-life. DESIGN: From June 2012 to 2014, patients with IBD were prospectively included in a multicentre cohort study. Each colonic segment was evaluated with white light followed by 0.4% indigo carmine CE. Specific lesions' features were recorded...
September 9, 2016: Gut
Nei Soma
Evaluating the prevalence of gastritis by endoscopy is useful for estimating the risk of gastric cancer. Moreover, understanding the endoscopic appearances of gastritis is important for diagnosing gastric cancer due to the superficial mucosal lesions that mimic gastritis (gastritis-like lesions) are very difficult to detect even with optimum preparation and the best technique, and in such cases the tissue biopsy is often not very accurate for the diagnosis of gastric epithelial neoplasia. Magnifying endoscopy is a highly accurate technique for the detection of EGC (early gastric cancer)...
August 31, 2016: Journal of Digestive Diseases
Noriya Uedo, Kenshi Yao
Although dye-based and image-enhanced endoscopic techniques have revolutionized endoscopic diagnosis, conventional white light endoscopy still plays an important role in the diagnosis of early gastric cancer (EGC) during routine endoscopy. Chromoendoscopy reveals morphological characteristics of the mucosal lesions by enhancing mucosal contrast, while narrow-band imaging (NBI) facilitates detailed evaluation of the vascular architecture and surface features. Positive diagnostic findings of EGC on white light imaging and indigo carmine chromoendoscopy are a sharply demarcated lesion and irregularity in surface morphology or color...
2016: Advances in Experimental Medicine and Biology
Anne-Fré Swager, Wouter L Curvers, Jacques J Bergman
Evaluation of patients with Barrett's esophagus (BE) using dye-based chromoendoscopy, optical chromoendoscopy, autofluorescence imaging, or confocal laser endomicroscopy does not significantly increase the number of patients with a diagnosis of early neoplasia compared with high-definition white light endoscopy (HD-WLE) with random biopsy analysis. These newer imaging techniques are not more effective in standard surveillance of patients with BE because the prevalence of early neoplasia is low and HD-WLE with random biopsy analysis detects most cases of neoplasia...
2016: Advances in Experimental Medicine and Biology
Mauro W Bonatto, Luiz Kotze, Marcia Orlandoski, Ricardo Tsuchyia, Carlos A de Carvalho, Doryane Lima, Gustavo Kurachi, Ivan R B Orso, Lorete Kotze
BACKGROUND AND STUDY AIMS: Celiac disease (CD) is a chronic systemic autoimmune disorder affecting genetically predisposed individuals, triggered and maintained by the ingestion of gluten. Triggered and maintained by the ingestion of gluten, celiac disease is a chronic systemic autoimmune disorder affecting genetically predisposed individuals. Persistent related inflammation of the duodenal mucosa causes atrophy architecture detectable on esophagogastroduodenoscopy (EGD) and histopathology...
July 2016: Endoscopy International Open
Itsuko Asada-Hirayama, Shinya Kodashima, Yoshiki Sakaguchi, Satoshi Ono, Keiko Niimi, Satoshi Mochizuki, Yosuke Tsuji, Chihiro Minatsuki, Satoki Shichijo, Keisuke Matsuzaka, Tetsuo Ushiku, Masashi Fukayama, Nobutake Yamamichi, Mitsuhiro Fujishiro, Kazuhiko Koike
BACKGROUND AND STUDY AIMS: Although magnifying endoscopy with narrow-band imaging (ME-NBI) is reported to be useful for delineating the horizontal extent of early gastric cancers (EGCs), there are few reports which have objectively demonstrated the superiority of ME-NBI over chromoendoscopy with indigo carmine for this purpose. We conducted an exploratory comparison of the diagnostic accuracy of both modalities for the delineation of EGCs using prospectively collected data, and clarified the clinicopathological features related to inaccurate evaluation of the horizontal extent of EGCs...
June 2016: Endoscopy International Open
Aldona Dlugosz, Ammar Mohkles Barakat, Niklas K Björkström, Åke Öst, Annika Bergquist
BACKGROUND AND STUDY AIMS: Primary sclerosing cholangitis associated inflammatory bowel disease (PSC-IBD) is characterized by a high risk of colorectal dysplasia. Surveillance colonoscopies with random biopsies have doubtful power for dysplasia detection. Our aim was to prospectively investigate the feasibility and efficacy of pCLE in surveillance colonoscopies in patients with PSC-IBD. PATIENTS AND METHODS: Sixty-nine patients with PSC-IBD underwent colonoscopy in 2 steps...
August 2016: Endoscopy International Open
Kyung Ho Song, Jeong Ah Hwang, Sun Moon Kim, Hyoung Suk Ko, Min Kyu Kang, Ki Hyun Ryu, Hoon Sup Koo, Tae Hee Lee, Kyu Chan Huh, Young Woo Choi, Young Woo Kang
BACKGROUND AND AIMS: The diagnosis of gastric intestinal metaplasia (IM) is currently performed by histologic assessment of multiple endoscopic biopsies, methylene blue chromoendoscopy, or narrow-band imaging with magnification. However, practical and readily available methods are lacking. We assessed the diagnostic accuracy and reproducibility of acetic acid chromoendoscopy (AAC) for determining the extent of gastric IM. METHODS: One hundred twenty-six participants were enrolled...
August 8, 2016: Gastrointestinal Endoscopy
Chikatoshi Katada, Tetsuji Yokoyama, Tomonori Yano, Kazuhiro Kaneko, Ichiro Oda, Yuichi Shimizu, Hisashi Doyama, Tomoyuki Koike, Kohei Takizawa, Motohiro Hirao, Hiroyuki Okada, Takako Yoshii, Kazuo Konishi, Takenori Yamanouchi, Takashi Tsuda, Tai Omori, Nozomu Kobayashi, Tadakazu Shimoda, Atsushi Ochiai, Yusuke Amanuma, Shinya Ohashi, Tomonari Matsuda, Hideki Ishikawa, Akira Yokoyama, Manabu Muto
BACKGROUND & AIMS: Some patients develop multiple squamous cell carcinomas (SCCs) in the upper aerodigestive tract, attributed to field cancerization; alcohol consumption has been associated with this process. We examined the association between multiple areas of dysplastic squamous epithelium with the development of SCC of the esophagus or head and neck cancer, as well as alcohol consumption and smoking. METHODS: We examined 331 patients with early stage esophageal SCC using Lugol chromoendoscopy to evaluate the dysplastic squamous epithelium in the esophagus...
August 1, 2016: Gastroenterology
John B Kisiel, Gauree G Konijeti, Andrew J Piscitello, Tarun Chandra, Thomas F Goss, David A Ahlquist, Francis A Farraye, Ashwin N Ananthakrishnan
BACKGROUND & AIMS: Patients with chronic ulcerative colitis are at increased risk for colorectal neoplasia (CRN). Surveillance by white-light endoscopy (WLE) or chromoendoscopy may reduce risk of CRN, but these strategies are underused. Analysis of DNA from stool samples (sDNA) can detect CRN with high levels of sensitivity, but it is not clear if this approach is cost-effective. We simulated these strategies for CRN detection to determine which approach is most cost-effective. METHODS: We adapted a previously published Markov model to simulate the clinical course of chronic ulcerative colitis, the incidence of cancer or dysplasia, and costs and benefits of care with 4 surveillance strategies: (1) analysis of sDNA and diagnostic chromoendoscopy for patients with positive results, (2) analysis of sDNA with diagnostic WLE for patients with positive results, (3) chromoendoscopy with targeted collection of biopsies, or (4) WLE with random collection of biopsies...
July 25, 2016: Clinical Gastroenterology and Hepatology
Alexandre Gomes, Thelma Larocca Skare, Manoel Alberto Prestes, Maiza da Silva Costa, Roberta Dombroski Petisco, Gabriela Piovezani Ramos
BACKGROUND: Studies with 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 related to H. pylori infection gastritis allowing predictability of their diagnosis as well as proper targeting biopsies...
April 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Sawan Bopanna, Maitreyee Roy, Prasenjit Das, S Dattagupta, V Sreenivas, V Pratap Mouli, Saurabh Kedia, Rajan Dhingra, Rajesh Pradhan, N Suraj Kumar, Dawesh P Yadav, Govind Makharia, Vineet Ahuja
BACKGROUND/AIMS: Recent data suggest that the incidence of ulcerative colitis (UC) related colorectal cancer (CRC) in India is similar to that of West. The optimum method for surveillance is still a debate. Surveillance with random biopsies has been the standard of care, but is a tedious process. We therefore undertook this study to assess the yield of random biopsy in dysplasia surveillance. METHODS: Between March 2014 and July 2015, patients of UC attending the Inflammatory Bowel Disease clinic at the All India Institute of Medical Sciences with high risk factors for CRC like duration of disease >15 years and pancolitis, family history of CRC, primary sclerosing cholangitis underwent surveillance colonoscopy for dysplasia...
July 2016: Intestinal Research
Fergus J Q Chedgy, Sharmila Subramaniam, Kesavan Kandiah, Sreedhari Thayalasekaran, Pradeep Bhandari
Barrett's esophagus (BE) is an important condition given its significant premalignant potential and dismal five-year survival outcomes of advanced esophageal adenocarcinoma. It is therefore suggested that patients with a diagnosis of BE undergo regular surveillance in order to pick up dysplasia at an earlier stage to improve survival. Current "gold-standard" surveillance protocols suggest targeted biopsy of visible lesions followed by four quadrant random biopsies every 2 cm. However, this method of Barrett's surveillance is fraught with poor endoscopist compliance as the procedures are time consuming and poorly tolerated by patients...
July 7, 2016: World Journal of Gastroenterology: WJG
Ferdinand Knieling, Maximilian J Waldner
Patients with inflammatory bowel disease are known to have a high demand of recurrent evaluation for therapy and disease activity. Further, the risk of developing cancer during the disease progression is increasing from year to year. New, mostly non-radiant, quick to perform and quantitative methods are challenging, conventional endoscopy with biopsy as gold standard. Especially, new physical imaging approaches utilizing light and sound waves have facilitated the development of advanced functional and molecular modalities...
July 7, 2016: World Journal of Gastroenterology: WJG
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