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https://www.readbyqxmd.com/read/28103453/-analysis-of-the-cochrane-review-chromoscopy-versus-conventional-endoscopy-for-the-detection-of-polyps-in-the-colon-and-rectum-cochrane-database-syst-rev-2016-4-cd006439
#1
Diogo Libânio, Luís Filipe Azevedo
Although colonoscopy is considered the most accurate test for the investigation of colorectal polyps, lesions ≤ 10 mm may be missed in approximately 10%. Chromoscopy may increase the detection of colorectal polyps. A systematic review and meta-analysis was performed to investigate the benefit of cromoscopy in colorectal polyps detection. Seven randomized controlled trials were included (incuding 2,727 participants) comparing polyp detection (both neoplastic and non- neoplastic polyps) in patients submitted to conventional colonoscopy or colonoscopy with chromoscopy...
October 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28101760/a-cad-of-fully-automated-colonic-polyp-detection-for-contrasted-and-non-contrasted-ct-scans
#2
Gökalp Tulum, Bülent Bolat, Onur Osman
PURPOSE: Computer-aided detection (CAD) systems are developed to help radiologists detect colonic polyps over CT scans. It is possible to reduce the detection time and increase the detection accuracy rates by using CAD systems. In this paper, we aimed to develop a fully integrated CAD system for automated detection of polyps that yields a high polyp detection rate with a reasonable number of false positives. METHODS: The proposed CAD system is a multistage implementation whose main components are: automatic colon segmentation, candidate detection, feature extraction and classification...
January 18, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28099884/characterization-of-human-and-staphylococcus-aureus-proteins-in-respiratory-mucosa-by-in-vivo-and-immunoproteomics
#3
Frank Schmidt, Tanja Meyer, Nandakumar Sundaramoorthy, Stephan Michalik, Kristin Surmann, Maren Depke, Vishnu Dhople, Manuela Gesell Salazar, Gabriele Holtappels, Nan Zhang, Barbara M Bröker, Claus Bachert, Uwe Völker
: Staphylococcus aureus is a Gram-positive opportunistic bacterium which can be found as a commensal in the nares of about 50% of the human population. Besides asymptomatic carriage, S. aureus has also been found to colonize nasal polyps, a subform of chronic rhinosinusitis, in 60 to 100% of cases, and even reside intracellularly in nasal polyp tissue. The aim of this study was to shed light on the behavior of S. aureus in the human airways by analyzing S. aureus-specific proteins in nasal polyp tissue from patients with chronic rhinosinusitis and to characterize the immunogenic potential of the identified (mainly secreted) proteins...
January 15, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28096059/clinical-utility-of-the-smsa-grading-tool-for-the-management-of-colonic-neoplastic-lesions
#4
Stefano Sansone, Krish Ragunath, Maria Antonia Bianco, Francesco Manguso, Sabina Beg, Abhay Bagewadi, Said Din, Gianluca Rotondano
BACKGROUND: Whilst polyp size has been traditionally used as a predictor of the complexity of endoscopic resection, the influence of other factors is increasingly recognised. The SMSA grading system takes into account polyp Site, Morphology, Size and Access, with higher scores correlating with increased technical difficulty. AIMS: To evaluate whether the SMSA grading tool correlates with endoscopic and clinical outcomes. METHODS: This retrospective study was conducted at two high volume centres in the United Kingdom and Italy...
January 6, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28095048/an-approach-to-using-data-mining-to-support-early-identification-of-acromegaly
#5
Michael S Broder, Eunice Chang, Sheila R Reddy, Maureen P Neary
OBJECTIVE: Data mining using insurance claims presents an opportunity to incorporate new analytic techniques in identifying rare conditions. This study aims to identify dyads of clinical conditions associated with acromegaly that may, with further validation and testing, be used to initially identify and diagnose this rare disease more accurately and efficiently. METHODS: This case-control study used two claims databases to identify acromegaly patients (cases) (ICD-9-CM: 253...
January 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28090006/expression-of-apical-junction-complex-proteins-in-colorectal-mucosa-of-miniature-dachshunds-with-inflammatory-colorectal-polyps
#6
Nozomu Yokoyama, Hiroshi Ohta, Yumiko Kagawa, Rommaneeya Leela-Arporn, Angkhana Dermlim, Khoirun Nisa, Tomoya Morita, Tatsuyuki Osuga, Noboru Sasaki, Keitaro Morishita, Kensuke Nakamura, Mitsuyoshi Takiguchi
We examine the expression of tight junction and adherence junction proteins in the colorectal mucosa of miniature dachshunds (MDs) with inflammatory colorectal polyps (ICRPs). Colorectal mucosa samples were endoscopically obtained from 8 MDs with ICRPs and 8 control dogs for immunoblotting. Paraffin-embedded tissues of surgically resected inflamed lesions from another 5 MDs with ICRPs and full-thickness colorectal specimens from 5 healthy beagles were obtained for immunohistochemistry. The expression patterns of claudin-1, -2, -3, -4, -5, -7 and -8, E-cadherin and β-catenin were analyzed in the non-inflamed mucosa and inflamed mucosa of ICRPs and colorectal mucosa of control dogs by immunoblotting...
January 16, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28089357/localization-of-toll-like-receptor-tlr-2-and-tlr4-mrna-in-the-colorectal-mucosa-of-miniature-dachshunds-with-inflammatory-colorectal-polyps
#7
N Yokoyama, H Ohta, J Yamazaki, Y Kagawa, O Ichii, N Khoirun, T Morita, T Osuga, S Y Lim, N Sasaki, K Morishita, K Nakamura, M Takiguchi
Inflammatory colorectal polyps (ICRPs) are characterized by the formation of multiple or solitary polyps with marked neutrophil infiltration in the colorectal area, and are speculated to be a novel form of breed-specific canine idiopathic inflammatory bowel disease (IBD). In human IBD, toll-like receptor (TLR) 2 and TLR4 have been reported to be involved in the pathogenesis of the disease. The aim of this study was to evaluate the expression of TLR2 and TLR4 mRNA in the colorectal mucosa of dogs with ICRPs by in-situ hybridization using an RNAscope assay...
January 12, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28078114/colorectal-cancer-anatomic-distribution-patterns-remain-the-same-after-sessile-serrated-adenoma-polyp-considered-cancer-precursor-a-9-year-comparison-study-from-community-based-endoscopy-centers
#8
Juliana F Yang, Amy E Noffsinger, Deepak Agrawal, Qing-Hua Yang
BACKGROUND: The overall incidence of colorectal cancer (CRC) in the United States has steadily decreased. However, the incidence of right-sided CRC remains unchanged for the past two decades. The serrated neoplastic pathway (sessile serrated adenoma/polyp, SSA/P) has been considered an important pathway of colorectal carcinogenesis, especially in the right-sided CRC. The aim of this study was to compare CRC anatomic distribution patterns in a 9-year interval in the general population before and after SSA/P was recognized and treated as a CRC precursor...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28075483/detecting-apc-gene-mutations-in-familial-adenomatous-polyposis-fap
#9
Babi Ramesh Reddy Nallamilli, Madhuri Hegde
Hereditary forms of colorectal cancer (CRC) account for up to 5% of total cases. Familial adenomatous polyposis (FAP) is an autosomal dominant condition affecting nearly 1 in 5000 people and accounts for only about 1% of all CRCs. It is characterized by the progressive development of hundreds to thousands of adenomatous colon polyps. The gene associated with FAP (APC) contains 15 coding exons. The mutation spectrum of the APC gene is broad in that 87% of causative mutations are point mutations (including other sequence variants) and around 10% to 15% are intragenic deletions and duplications...
January 11, 2017: Current Protocols in Human Genetics
https://www.readbyqxmd.com/read/28069476/missed-adenomas-with-behind-folds-visualizing-colonoscopy-technologies-compared-with-standard-colonoscopy-a-pooled-analysis-of-3-randomized-back-to-back-tandem-colonoscopy-studies
#10
Eelco C Brand, Vincent K Dik, Martijn G H van Oijen, Peter D Siersema
BACKGROUND AND AIMS: The Third Eye Retroscope, Full Spectrum Endoscope (FUSE) and EndoRings device have been shown to reduce overall adenoma miss rates. We evaluated the characteristics of adenomas and patient subgroups for which these "behind folds visualizing" technologies mostly reduce adenoma miss rates. METHODS: Data of 3 multicenter randomized trials (NCT01044732; NCT01549535; NCT01955122) were combined. Patients underwent same-day, back-to-back tandem examinations with standard colonoscopy and Third Eye Retroscope, FUSE or EndoRings colonoscopy, respectively...
January 6, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28065946/a-retrospective-study-of-clinico-pathological-characteristics-of-colonic-polyps-in-adults-seen-at-a-tertiary-care-centre
#11
Asim Qureshi, Zafar Ali, Asem Shalaby
OBJECTIVE: To analyse morphological types, location in the large bowel and demographic characteristics of colonic polyps. METHODS: The retrospective descriptive study was conducted at the Department of Pathology, Sultan Qaboos University Hospital, Muscat, Oman, and comprised biopsy specimens of colonic polyps from patients related to a two-year period from 2011 to 2012. Demographic data, types of polyps, anatomical location and grade of dysplasia were analysed. SPSS 20 was used for statistical analysis...
January 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28064440/dietary-fibre-for-the-prevention-of-recurrent-colorectal-adenomas-and-carcinomas
#12
REVIEW
Yibo Yao, Tao Suo, Roland Andersson, Yongqing Cao, Chen Wang, Jingen Lu, Evelyne Chui
BACKGROUND: This is an update of the Cochrane review published in 2002.Colorectal cancer (CRC) is a major cause of morbidity and mortality in industrialised countries. Experimental evidence has supported the hypothesis that dietary fibre may protect against the development of CRC, although epidemiologic data have been inconclusive. OBJECTIVES: To assess the effect of dietary fibre on the recurrence of colorectal adenomatous polyps in people with a known history of adenomatous polyps and on the incidence of CRC compared to placebo...
January 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28054186/radiographic-capsule-based-system-for-non-cathartic-colorectal-cancer-screening
#13
Yoav Kimchy, Ronen Lifshitz, Shlomo Lewkowitz, Guiseppe Bertuccio, Nadir Arber, Nathan Gluck, Perry J Pickhardt
Many patients are reluctant to undergo optical colonoscopy for colorectal cancer screening. The Check-Cap colon imaging system is a non-invasive test that comprises an ingestible imaging capsule that emits and detects ultra-low-dose radiation. The capsule generates a 3D reconstruction of the colonic lumen for detection of polyps and cancer. Preliminary preclinical and clinical testing has demonstrated safety and feasibility. Mean radiation dose is estimated at 0.04 mSv. In conclusion, we describe a novel capsule-based, patient-friendly colorectal test that holds potential for non-invasive screening...
January 4, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28052292/evaluation-for-the-clinical-efficacy-of-colon-capsule-endoscopy-in-the-detection-of-laterally-spreading-tumors
#14
Atsushi Igawa, Shiro Oka, Shinji Tanaka, Ichiro Otani, Sayoko Kunihara, Kazuaki Chayama
BACKGROUND AND AIM: The manner in which colorectal lesions are being detected with PillCam COLON2 capsule endoscopy (CCE2) has markedly improved in recent days. However, limited data are available on CCE2 for detecting laterally spreading tumors (LSTs). The aim of this study was to compare CCE2 with optical colonoscopy (OC), which is currently the gold standard used in the detection of LSTs. METHODS: We performed a prospective, single-academic center study comparing CCE2 with OC in patients with LSTs diagnosed using OC, which was performed during the 3-month period prior to CCE2...
2017: Digestion
https://www.readbyqxmd.com/read/28045200/quality-of-colonoscopy-performed-in-rural-practice-experience-from-the-clinical-outcomes-research-initiative-and-the-oregon-rural-practice-based-research-network
#15
Jennifer L Holub, Cynthia Morris, Lyle J Fagnan, Judith R Logan, LeAnn C Michaels, David A Lieberman
PURPOSE: Colon cancer screening is effective. To complete screening in 80% of individuals over age 50 years by 2018 will require adequate colonoscopy capacity throughout the country, including rural areas, where colonoscopy providers may have less specialized training. Our aim was to study the quality of colonoscopy in rural settings. METHODS: The Clinical Outcomes Research Initiative (CORI) and the Oregon Rural Practice-based Research Network (ORPRN) collaborated to recruit Oregon rural practices to submit colonoscopy reports to CORI's National Endoscopic Database (NED)...
January 3, 2017: Journal of Rural Health
https://www.readbyqxmd.com/read/28041973/prognostic-significance-of-stromal-grem1-expression-in-colorectal-cancer
#16
Bo Gun Jang, Hye Sung Kim, Weon Young Chang, Jeong Mo Bae, Hyeon Jeong Oh, Xianyu Wen, Seorin Jeong, Nam Yun Cho, Woo Ho Kim, Gyeong Hoon Kang
Cancer associated fibroblasts (CAFs) are the dominant cell population in the cancer stroma. Gremlin 1 (GREM1), an antagonist of the bone morphogenetic protein pathway, is expressed by CAFs in a variety of human cancers. However, its biological significance for cancer patients is largely unknown. We applied RNA in situ hybridization (ISH) to evaluate the prognostic value of stromal GREM1 expression in a large cohort of 670 colorectal cancers (CRCs). Overall GREM1 expression in CRCs was lower than that of the matched normal mucosa, and GREM1 expression had a strong positive correlation with BMI1 and inverse correlations with EPHB2 and OLFM4...
December 29, 2016: Human Pathology
https://www.readbyqxmd.com/read/28035253/colon-adenoma-features-and-their-impact-on-risk-of-future-advanced-adenomas-and-colorectal-cancer
#17
Audrey H Calderwood, Karen E Lasser, Hemant K Roy
AIM: To review the evidence on the association between specific colon adenoma features and the risk of future colonic neoplasia [adenomas and colorectal cancer (CRC)]. METHODS: We performed a literature search using the National Library of Medicine through PubMed from 1/1/2003 to 5/30/2015. Specific Medical Subject Headings terms (colon, colon polyps, adenomatous polyps, epidemiology, natural history, growth, cancer screening, colonoscopy, CRC) were used in conjunction with subject headings/key words (surveillance, adenoma surveillance, polypectomy surveillance, and serrated adenoma)...
December 15, 2016: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28028382/fice-vs-narrow-band-imaging-for-in-vivo-histologic-diagnosis-of-polyps
#18
Cevher Akarsu, Nuri Alper Sahbaz, Ahmet Cem Dural, Mustafa Gokhan Unsal, Osman Kones, Ali Kocatas, Ilkay Halicioglu, Halil Alis
BACKGROUND AND OBJECTIVES: Gastrointestinal cancers are the most frequently occurring cancers worldwide. Diagnosis and removal of polyps during screening endoscopy decreases the prevalence of colon cancer and cancer-related mortality, and it is considered to be the gold standard in gastrointestinal system cancer prevention. Technological innovations in endoscopy have led to revolutionary developments in many areas. Flexible spectral imaging color enhancement (FICE) and narrow-band imaging (NBI) are forms of digital chromoendoscopy and enhance the endoscopic images without the need for a dye...
October 2016: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/28025763/helicobacter-pylori-infection-is-an-independent-risk-factor-for-colonic-adenomatous-neoplasms
#19
Ji Hyung Nam, Chang Won Hong, Byung Chang Kim, Aesun Shin, Kum Hei Ryu, Bum Joon Park, Bun Kim, Dae Kyung Sohn, Kyung Su Han, Jeongseon Kim, Chan Wha Lee
PURPOSE: Helicobacter pylori infection is considered to have a positive association with colorectal neoplasms. In this study, we evaluated the association between H. pylori infection and colorectal adenomas, based on the characteristics of these adenomas in Korea, where the prevalence of H. pylori infection is high and the incidence of colorectal cancer continues to increase. METHODS: The study cohort consisted of 4,466 subjects who underwent colonoscopy and esophagogastroduodenoscopy during screening (1,245 colorectal adenomas vs...
December 27, 2016: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28025471/-new-colonoscopy-devices-to-improve-colon-neoplasm-detection
#20
REVIEW
Sung Jae Shin
Early detection and removal of adenomatous polyps can prevent the development of colorectal cancer. However, it is fairly common-up to 20%-for polyps to be undetected in a colonoscopy due to poor visualization of the proximal aspect of colonic folds and anatomical flexures. To overcome these limitations, many new endoscopes and accessories have been developed. A wide-angle colonoscopy did not improve the detection of adenoma compared with the standard colonoscopy. An extra-wide angle and Retroview colonoscopies showed a significantly lower miss rate of polyps in the colon model...
December 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
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