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Nice and colorectal polyps

James Turvill, Assad Aghahoseini, Nala Sivarajasingham, Kazim Abbas, Murtaza Choudhry, Kostantinos Polyzois, Kostantinos Lasithiotakis, Dimitra Volanaki, Baek Kim, Fiona Langlands, Helen Andrew, Jesper Roos, Samantha Mellen, Daniel Turnock, Alison Jones
BACKGROUND: NICE guidance exists for the use of faecal calprotectin (FC) when irritable bowel syndrome or inflammatory bowel disease are suspected. Often, however, colorectal cancer is considered within the differential. Should FC have a high diagnostic accuracy for colorectal cancer, it may be applicable as a primary care screening test for all patients with lower gastrointestinal symptoms. AIM: To determine the negative and positive predictive value (NPV/PPV) of FC in patients referred from primary care with suspected colorectal cancer...
July 2016: British Journal of General Practice: the Journal of the Royal College of General Practitioners
Colin J Rees, Praveen T Rajasekhar, Ana Wilson, Helen Close, Matthew D Rutter, Brian P Saunders, James E East, Rebecca Maier, Morgan Moorghen, Usman Muhammad, Helen Hancock, Anthoor Jayaprakash, Chris MacDonald, Arvind Ramadas, Anjan Dhar, James M Mason
BACKGROUND: Accurate optical characterisation and removal of small adenomas (<10 mm) at colonoscopy would allow hyperplastic polyps to be left in situ and surveillance intervals to be determined without the need for histopathology. Although accurate in specialist practice the performance of narrow band imaging (NBI), colonoscopy in routine clinical practice is poorly understood. METHODS: NBI-assisted optical diagnosis was compared with reference standard histopathological findings in a prospective, blinded study, which recruited adults undergoing routine colonoscopy in six general hospitals in the UK...
April 19, 2016: Gut
Alessandro Repici, Camilla Ciscato, Loredana Correale, Raf Bisschops, Pradeep Bhandari, Evelien Dekker, Oliver Pech, Franco Radaelli, Cesare Hassan
BACKGROUND AND AIMS: The Narrow-band Imaging International Colorectal Endoscopic (NICE) Classification has been validated for differentiating hyperplastic from adenomatous polyps. This classification system was based on narrow-band imaging (NBI) technology, leaving uncertainty regarding its applicability to other systems. The aim of this study was to assess accuracy and reliability of histologic predictions for polyps <1 cm by applying the NICE classification to the Fujinon Spectral Imaging Color Enhancement (FICE) System...
September 2016: Gastrointestinal Endoscopy
Yinhe Sikong, Xiangchun Lin, Kuiliang Liu, Jing Wu, Wu Lin, Nan Wei, Guojun Jiang, Weiping Tai, Hui Su, Hong Liu, Mingming Meng
BACKGROUND AND AIM: To evaluate the effectiveness of systematic training in the application of narrow-band imaging (NBI) International Colorectal Endoscopic (NICE) classification for the prediction of the histology of colorectal polyps. METHODS: This is a single-center study. In total, 260 still images of colorectal polyps from 225 patients were included. Two series of 130 images obtained using NBI and white light without magnification were distributed to 10 endoscopists-five highly experienced endoscopists (HEE group) and five less experienced endoscopists (LEE group)-for assessment using the NICE classification, before and after systematic training...
July 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
Mineo Iwatate, Yasushi Sano, Santa Hattori, Wataru Sano, Noriaki Hasuike, Taro Ikumoto, Masahito Kotaka, Yoshitaka Murakami, David G Hewett, Roy Soetikno, Tonya Kaltenbach, Takahiro Fujimori
BACKGROUND AND STUDY AIMS: The real-time optical diagnosis of colorectal polyps with high confidence predictions can achieve high levels of accuracy. Increasing the rates of high confidence optical diagnosis can improve the clinical application of real-time optical diagnosis in routine practice. The primary aim of this prospective study was to evaluate whether high magnifying endoscopy improves the rates of high confidence narrow-band imaging (NBI) - based optical diagnosis for differentiating between neoplastic and non-neoplastic colorectal lesions according to the NBI international colorectal endoscopic (NICE) classification...
April 2015: Endoscopy International Open
Matthew D Rutter, Amit Chattree, Jamie A Barbour, Siwan Thomas-Gibson, Pradeep Bhandari, Brian P Saunders, Andrew M Veitch, John Anderson, Bjorn J Rembacken, Maurice B Loughrey, Rupert Pullan, William V Garrett, Gethin Lewis, Sunil Dolwani
These guidelines provide an evidence-based framework for the management of patients with large non-pedunculated colorectal polyps (LNPCPs), in addition to identifying key performance indicators (KPIs) that permit the audit of quality outcomes. These are areas not previously covered by British Society of Gastroenterology (BSG) Guidelines.A National Institute of Health and Care Excellence (NICE) compliant BSG guideline development process was used throughout and the Appraisal of Guidelines for Research and Evaluation (AGREE II) tool was used to structure the guideline development process...
December 2015: Gut
Kim Y C Fung, Bruce Tabor, Michael J Buckley, Ilka K Priebe, Leanne Purins, Celine Pompeia, Gemma V Brierley, Trevor Lockett, Peter Gibbs, Jeanne Tie, Paul McMurrick, James Moore, Andrew Ruszkiewicz, Edouard Nice, Timothy E Adams, Antony Burgess, Leah J Cosgrove
BACKGROUND: The majority of colorectal cancer (CRC) cases are preventable by early detection and removal of precancerous polyps. Even though CRC is the second most common internal cancer in Australia, only 30 per cent of the population considered to have risk factors participate in stool-based test screening programs. Evidence indicates a robust, blood-based, diagnostic assay would increase screening compliance. A number of potential diagnostic blood-based protein biomarkers for CRC have been reported, but all lack sensitivity or specificity for use as a stand-alone diagnostic...
2015: PloS One
E Kidney, L Berkman, A Macherianakis, D Morton, G Dowswell, W Hamilton, R Ryan, H Awbery, S Greenfield, T Marshall
BACKGROUND: We report the findings of a feasibility study using information technology to search electronic primary care records and to identify patients with possible colorectal cancer. METHODS: An algorithm to flag up patients meeting National Institute for Health and Care Excellence (NICE) urgent referral criteria for suspected colorectal cancer was developed and incorporated into clinical audit software. This periodically flagged up such patients aged 60 to 79 years...
March 31, 2015: British Journal of Cancer
Santa Hattori, Mineo Iwatate, Wataru Sano, Noriaki Hasuike, Hidekazu Kosaka, Taro Ikumoto, Masahito Kotaka, Akihiro Ichiyanagi, Chikara Ebisutani, Yasuko Hisano, Takahiro Fujimori, Yasushi Sano
AIM: To assess the risk of failing to detect diminutive and small colorectal cancers with the "resect and discard" policy. METHODS: Patients who received colonoscopy and polypectomy were recruited in the retrospective study. Probable histology of the polyps was predicted by six colonoscopists by the use of NICE classification. The incidence of diminutive and small colorectal cancers and their endoscopic features were assessed. RESULTS: In total, we found 681 cases of diminutive (1-5 mm) lesions in 402 patients and 197 cases of small (6-9 mm) lesions in 151 patients...
December 16, 2014: World Journal of Gastrointestinal Endoscopy
Takeshi Yamashina, Yoji Takeuchi, Noriya Uedo, Kenji Aoi, Noriko Matsuura, Kengo Nagai, Fumi Matsui, Takashi Ito, Mototsugu Fujii, Sachiko Yamamoto, Noboru Hanaoka, Koji Higashino, Ryu Ishihara, Yasuhiko Tomita, Hiroyasu Iishi
BACKGROUND AND AIMS: The narrow band imaging classification system (NBI International Colorectal Endoscopic [NICE] classification) classifies colorectal polyps very accurately. However, sessile serrated adenoma/polyps (SSA/Ps) pathologically resembles hyperplastic polyp and has a possibility to be left in situ on NICE classification. The aim of this study was to establish and evaluate new simple diagnostic features for SSA/Ps using magnifying narrow band imaging (M-NBI). METHODS: We performed a single-arm observational study of diagnostic accuracy in two stages, as follows: seeking stage, development of simple diagnostic features for SSA/P and definition of diagnostic criteria based on retrospective assessments of M-NBI; and validation stage, prospective validation and evaluation of the new diagnostic criteria...
January 2015: Journal of Gastroenterology and Hepatology
Michael B Wallace
No abstract text is available yet for this article.
December 2013: Gastrointestinal Endoscopy
Sheila Kumar, Ann Fioritto, Aya Mitani, Manisha Desai, Naresh Gunaratnam, Uri Ladabaum
BACKGROUND: Serrated colorectal lesions include hyperplastic polyps (HPs) and sessile serrated adenomas (SSAs). Optical biopsy could misclassify SSAs as unimportant if they resemble HPs. OBJECTIVE: To explore the narrow-band imaging (NBI) features of SSAs. We hypothesized that SSAs resemble HPs under NBI. DESIGN: Retrospective analysis of data from our prospective study of NBI in routine practice. SETTING: Single specialty group...
December 2013: Gastrointestinal Endoscopy
Mineo Iwatate, Taro Ikumoto, Santa Hattori, Wataru Sano, Yasushi Sano, Takahiro Fujimori
Although magnifying chromoendoscopy had been a reliable diagnostic tool, narrow-band imaging (NBI) has been developed in Japan since 1999 and has now replaced the major role of chromoendoscopy because of its convenience and simplicity. In this paper, we principally describe the efficacy of magnifying chromoendoscopy and magnifying colonoscopy with NBI for detection, histological prediction, estimation of the depth of early colorectal cancer, and future prospects. Although some meta-analyses have concluded that NBI is not superior to white light imaging for detection of adenomatous polyps in screening colonoscopy, NBI with magnification colonoscopy is useful for histological prediction, or for estimating the depth of invasion...
2012: Diagnostic and Therapeutic Endoscopy
Ichiro Hirata, Yoshihito Nakagawa, Masaaki Ohkubo, Naohisa Yahagi, Kenshi Yao
A series of studies about the potential usefulness of magnifying endoscopy with narrow-band imaging (NBI) for the diagnosis of gastric and colonic lesion is reviewed. Concerning the magnifying NBI appearances of gastric lesions, a light blue crest is a highly accurate sign of the presence of histological intestinal metaplasia. Also, the degree of irregularity of the mucosal and vascular pattern is correlated with the histological severity of Helicobacter pylori-associated chronic gastritis. According to the 'VS classification', an irregular microvascular pattern and/or an irregular microsurface pattern together with a clear demarcation line are characteristic for early gastric carcinoma, and a multicenter prospective randomized controlled trial demonstrated that magnifying endoscopy with NBI is superior to ordinary white light endoscopy for making a differential diagnosis of a small depressed lesion between carcinoma and non-carcinoma...
2012: Digestion
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