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https://www.readbyqxmd.com/read/29166546/back-to-back-colon-capsule-endoscopy-and-optical-colonoscopy-in-colorectal-cancer-screening-individuals
#1
Morten Kobaek-Larsen, Rasmus Kroijer, Anne-Kirstine Dyrvig, Maria Magdalena Buijs, Robert J C Steele, Niels Qvist, Gunnar Baatrup
AIM: To determine the polyp detection rate and per-patient sensitivity for polyps >9 mm of colon capsule endoscopy (CCE) compared with colonoscopy as well as the diagnostic accuracy of CCE. METHOD: Individuals who had positive immunochemical faecal occult blood test during screening had investigator blinded colon capsule endoscopy and colonoscopy. Participants underwent repeat endoscopy if significant lesions detected by colon capsule endoscopy were considered to have been missed by colonoscopy...
November 22, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29151306/evaluation-of-risk-factors-for-the-recurrence-of-colorectal-polyps-and-colorectal-cancer
#2
Öztürk Ateş, Bülent Sivri, Saadettin Kılıçkap
Background/aim: Colorectal adenomatous polyps are precursors of colorectal cancer (CRC), which can be prevented with surveillance colonoscopy. This study aimed to assess risk factors for the recurrence of colorectal polyps and CRC following polypectomy. Materials and methods: In this single-center trial, a total of 510 patients who applied to the endoscopy unit of Hacettepe University Hospital for various reasons and who were diagnosed with at least one colorectal adenomatous polyp between 2000 and 2010 were retrospectively analyzed...
November 13, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29148927/flat-serrated-polyps-at-ct-colonography-relevance-appearance-and-optimizing-interpretation
#3
David H Kim, Meghan G Lubner, Ashley R Cahoon, B Dustin Pooler, Perry J Pickhardt
Serrated polyps are a recently recognized family of colonic polyps with subgroups that harbor future malignant potential. In the past, the significance of these lesions to the colorectal cancer carcinogenesis pathway was not recognized nor well understood. It is now known that serrated polyps account for approximately one-fourth of all sporadic colorectal cancers. The sessile serrated polyp (SSP) (also known as a sessile serrated adenoma [SSA]) is the main lesion of interest given its prevalence and subtle presentation...
November 17, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29147879/increased-risk-for-colon-polyps-in-patients-with-reflux-disease
#4
Amnon Sonnenberg, Kevin O Turner, Robert M Genta
BACKGROUND: Previous studies have found an increased risk for colonic neoplasm in patients with Barrett's esophagus. It is unknown whether such risk applies similarly to other types of gastroesophageal reflux disease (GERD). AIMS: To test whether GERD represents a risk factor for the occurrence of colon polyps. METHODS: The Miraca Life Sciences Database is a large national electronic repository of histopathologic records of patients distributed throughout the entire USA...
November 17, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29136951/chemopreventive-effect-of-myricetin-a-natural-occurring-compound-on-colonic-chronic-inflammation-and-inflammation-driven-tumorigenesis-in-mice
#5
Mei-Jia Zhang, Han Su, Jing-Yue Yan, Na Li, Zhi-Yu Song, Huai-Jie Wang, Lian-Guang Huo, Feng Wang, Wan-Sheng Ji, Xian-Jun Qu, Mei-Hua Qu
Myricetin is a flavonoids compound extracted from edible myrica rubra. We aimed to evaluate the efficacy of Myricetin on colonic chronic inflammation and inflammation-driven tumorigenesis in mice. Myricetin was administrated by gavage for 4 consecutive weeks. Mice were sacrificed and the number of colonic polyps was counted. Myricetin significantly inhibited AOM/DSS-induced colitis and colorectal tumorigenesis. Myricetin prevented the incidence of colorectal tumorigenesis and reduced the size of colorectal polyps...
November 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29133257/comparative-efficacy-of-colonoscope-distal-attachment-devices-in-increasing-rates-of-adenoma-detection-a-network-meta-analysis
#6
REVIEW
Antonio Facciorusso, Valentina Del Prete, Rosario Vincenzo Buccino, Nicola Della Valle, Maurizio Cosimo Nacchiero, Fabio Monica, Renato Cannizzaro, Nicola Muscatiello
BACKGROUND & AIMS: Several add-on devices have been developed to increase rates of colon adenoma detection (ADR). We assessed their overall and comparative efficacy, and estimated absolute magnitude of benefit through a network meta-analysis. METHODS: We searched the PubMed/Medline and Embase database through March 2017 and identified 25 randomized controlled trials (comprising 16,103 patients) that compared the efficacy of add-on devices (cap, Endocuff, and Endorings) with each other or with standard colonoscopy...
November 10, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29133196/cold-endoscopic-mucosal-resection-of-large-sessile-serrated-polyps-at-colonoscopy-with-video
#7
Nicholas J Tutticci, David G Hewett
BACKGROUND AND AIMS: The optimal technique for the resection of sessile serrated polyps (SSPs) is unknown, with established limitations and risks with conventional polypectomy. Although cold snare polypectomy is safe, the efficacy of piecemeal resection for large lesions is untested. In this study, we evaluate the safety and efficacy of cold endoscopic mucosal resection (EMR) for large SSPs. METHODS: Patients presenting for elective colonoscopy at an academic endoscopy center with 1 or more SSPs ≥10mm in size were enrolled, excluding those on anticoagulants or antiplatelets other than aspirin...
November 10, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29125240/tumor-associated-dna-mutation-detection-in-individuals-undergoing-colonoscopy
#8
Phillip Fleshner, Glenn D Braunstein, Gayane Ovsepyan, Theresa R Tonozzi, Anja Kammesheidt
The majority of colorectal cancers (CRC) harbor somatic mutations and epigenetic modifications in the tumor tissue, and some of these mutations can be detected in plasma as circulating tumor DNA (ctDNA). Precancerous colorectal lesions also contain many of these same mutations. This study examined plasma for ctDNA from patients undergoing a screening or diagnostic colonoscopy to determine the sensitivity and specificity of the ctDNA panel for detecting CRC and precancerous lesions. Two hundred patients without a history of nonskin cancer had blood drawn before a colonoscopy...
November 10, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/29122084/vitamin-d%C3%A2-deficiency-and-its-association-with-nasal-polyposis-in-patients-with-cystic-fibrosis-and-patients-with-chronic-rhinosinusitis
#9
Iordanis Konstantinidis, Maria Fotoulaki, Ioannis Iakovou, Angelos Chatziavramidis, Vasilios Mpalaris, Kseniya Shobat, Konstantinos Markou
BACKGROUND: Currently vitamin D3 (VD3) or cholecalciferol is considered an immunomodulator that may be implicated in nasal polyposis (NP) pathophysiology. OBJECTIVES: This study aimed to investigate if deficiency of VD3 is associated with the presence of NP in patients with cystic fibrosis (CF) and patients with chronic rhinosinusitis (CRS). METHODS: In total, 152 adult participants were included in five phenotypic groups: CF with NP (CFwNP) (n = 27), CF without NP (CFsNP) (n = 31), CRS with NP (CRSwNP) (n = 32), CRS without NP (CRSsNP) (n = 30), and controls (n = 32)...
November 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29118162/does-mutated-k-ras-oncogene-attenuate-the-effect-of-sulindac-in-colon-cancer-chemoprevention
#10
Photini F S Rice, Kevin G Ehrichs, Mykella S Jones, Hwudarw Chen, Chiu-Hsieh Hsu, Edward R Abril, Raymond B Nagle, David G Besselsen, Jennifer K Barton, Natalia A Ignatenko
The non-steroidal anti-inflammatory drug (NSAID) Sulindac has been successfully used alone or in combination with other agents to suppress colon tumorigenesis in patients with genetic predisposition, and also showed its efficacy in prevention of sporadic colon adenomas. At the same time, some experimental and clinical reports suggest that a mutant K-RAS oncogene may negate Sulindac anti-tumor efficacy. To directly assess Sulindac activity at suppressing premalignant lesions carrying K-RAS mutation, we utilized a novel mouse model with an inducible colon-specific expression of the mutant K-ras oncogene (K-ras G12D)...
November 8, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/29110374/towards-understanding-the-mechanisms-of-actions-of-ceacam6-in-cancer-progression
#11
REVIEW
Balsam Rizeq, Zain Zakaria, Allal Ouhtit
Human carcinoembryonic antigen (CEA) is the prototypic member of highly related cell surface glycoproteins that includes Carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) and others. CEACAM6 (formerly NCA) that belongs to the immunoglobulin superfamily, is a cell adhesion proteins of the CEA family. It is normally expressed on the epithelial surfaces and the surface of myeloid (CD66c). CEACAM6 is a multi-functional glycoprotein that mediates homotypic binding with other CEA family members and heterotypic binding with integrin receptors...
November 7, 2017: Cancer Science
https://www.readbyqxmd.com/read/29108402/clinicopathological-features-of-colorectal-polyps-in-2002-and-2012
#12
Yoon Jeong Nam, Kyeong Ok Kim, Chan Seo Park, Si Hyung Lee, Byung Ik Jang
Background/Aims: There are few comparative studies on the historical changes in the clinicopathologic characteristics of colorectal polyps in Korea. This retrospective study compared the clinicopathologic characteristics of colorectal polyps treated at our institution in 2002 and 2012. Methods: The medical records of 1,816 patients who underwent colonoscopy and were found to have colorectal polyps in 2002 (n = 597) or 2012 (n = 1,219) were reviewed retrospectively...
November 8, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29105290/endoscopic-resection-of-large-colorectal-adenomas-clinical-experience-of-a-tertiary-referral-center
#13
Liat Mlynarsky, Shira Zelber-Sagi, Eliaz Miller, Revital Kariv
BACKGROUND: Colorectal cancer is a leading cause for cancer-related mortality. Adenomatous polyps are typically resected endoscopically to prevent cancer while giant and complex polyps are managed surgically. No criteria clearly define the indications for surgical versus endoscopic resection. AIM: To evaluate factors associated with short-term efficacy and safety of endoscopic resection of large (≥20mm) and giant (≥40mm) adenomas. METHODS: Consecutive cases with colonic adenomas larger than 20mm, resected endoscopically were included...
November 4, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29103541/problematic-colorectal-polyps-is-it-cancer-and-what-do-i-need-to-do-about-it
#14
REVIEW
Maurice B Loughrey, Neil A Shepherd
Two issues commonly arise for pathologists reporting adenomatous polyps of the colorectum. Particularly problematic within large sigmoid colonic adenomas is the distinction between benign misplacement of epithelium into the submucosa and invasive malignancy. This distinction requires careful morphologic evaluation of key discriminatory features, assisted only rarely by the application of selected adjunctive immunohistochemistry. Following a diagnosis of adenocarcinoma within a polypectomy or other local excision specimen, systematic assessment is required of features that may indicate the risk of residual local and/or nodal neoplastic disease and inform management decision-making regarding the need for further endoscopic or surgical intervention...
December 2017: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29099467/genotype-phenotype-associations-of-apc-mutations-with-pouch-adenoma-in-patients-with-familial-adenomatous-polyposis
#15
Revital Kariv, Guy Rosner, Naomi Fliss-Isakov, Nathan Gluck, Adam Goldstein, Hagit Tulchinsky, Shira Zelber-Sagi
BACKGROUND: Patients with familial adenomatous polyposis (FAP) may carry various adenomatous polyposis coli (APC) mutations. However, genotype-phenotype correlation for APC mutations is still debated and is yet to be evaluated with regard to pouch polyp formation. OBJECTIVE: To evaluate the association between APC mutation type and exon location and the outcome of pouch adenoma. DESIGN SETTING AND PATIENTS: Forty-five FAP patients with defined pathogenic APC mutations, who underwent total proctocolectomy and ileal pouch anal anastomosis were classified by mutation type and location...
November 3, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29081443/colonoscopy-examination-requires-a-longer-time-in-patients-with-acromegaly-than-in-other-individuals
#16
Masaya Iwamuro, Miho Yasuda, Kou Hasegawa, Satoshi Fujisawa, Kanako Ogura-Ochi, Yuusaku Sugihara, Keita Harada, Sakiko Hiraoka, Hiroyuki Okada, Fumio Otsuka
This study aimed to determine the prevalence of colorectal neoplasms and to investigate the rate of and time required for cecal intubation in patients with acromegaly. A database search performed at our institution identified 29 patients with acromegaly who underwent colonoscopy. Data regarding the endoscopic, biological, and pathological examinations performed were retrospectively reviewed from the clinical records. Subsequently, the rate of and time required for cecal intubation were investigated in 23 patients with acromegaly and compared with the corresponding data of the control group...
October 28, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29079186/investigating-the-association-between-african-spontaneously-fermented-dairy-products-faecal-carriage-of-streptococcus-infantarius-subsp-infantarius-and-colorectal-adenocarcinoma-in-kenya
#17
Dasel W M Kaindi, Wambui Kogi-Makau, Godfrey N Lule, Bernd Kreikemeyer, Pierre Renault, Bassirou Bonfoh, Esther Schelling, Jakob Zinsstag, Christophe Lacroix, Leo Meile, Christoph Jans, Jan Hattendorf
Consumption of traditional fermented dairy products (tFDP) in Africa leads to the ingestion of up to 10(8)Streptococcus infantarius subspecies infantarius (Sii) per millilitre of spontaneously fermented milk. Sii is a member of the Streptococcus bovis/Streptococcus equinus complex (SBSEC) for which some members are associated particularly with colorectal cancer or endocarditis. The extent of health risks to tFDP consumers is largely unknown. A hospital-based unmatched case-control study was conducted at Kenyatta National Hospital, Nairobi (Kenya) on 80 cases and 193 controls that were selected exhaustively from patients attending colonoscopy at the hospital...
October 25, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29076685/causes-of-lower-gastrointestinal-bleeding-on-colonoscopy
#18
Attique-Ur-Rehman Jehangiri, Rahid Gul, Rania Hadayat, Adil Naseer Khan, Zabiullah, Liaqat Khursheed
BACKGROUND: Bleeding from anus is usually referred as rectal bleeding but actually rectal bleeding is defined as bleeding from lower colon or rectum, which means bleeding from a place distal to ligament of Treitz. This study was conducted to determine the frequency of different causes of rectal bleeding in patients at Ayub Teaching Hospital, Abbottabad. METHODS: One hundred and seventy-five patients with evidence of rectal bleed, without gender discrimination were selected by non-probability convenient sampling from the out-patient department and general medical wards...
July 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29072121/colonic-stasis-and-chronic-constipation-demystifying-proposed-risk-factors-for-colon-polyp-formation-in-a-spinal-cord-injury-veteran-population
#19
Jason Colizzo, Jonathan Keshishian, Ambuj Kumar, Gitanjali Vidyarthi, Donald Amodeo
BACKGROUND AND AIMS: Patients with spinal cord injury (SCI) suffer significant morbidity from neurogenic bowel. Chronic constipation has long-been a proposed risk factor for polyp development. We performed a retrospective cohort study in veterans with SCI to assess polyp presence in the setting of colonic stasis. METHODS: All consecutive patients at the James A. Haley Veterans Affairs Hospital with SCI and neurogenic bowel who completed screening colonoscopy between January 1, 2004 to June 30, 2013 were included...
October 26, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29072082/chemoprevention-of-polyp-recurrence-with-curcumin-followed-by-silibinin-in-a-case-of-multiple-colorectal-adenomas
#20
Vicente Alfonso-Moreno, Antonio López-Serrano, Eduardo Moreno-Osset
Chemoprevention is a practical approach to reduce the risk of various cancers including colorectal cancer (CRC). The goal is to reduce the incidence of pre-neoplastic adenomatous polyps and prevent its progression to CRC. Curcumin and silibinin prevent intestinal polyp formation in mice. Curcumin sensitizes silymarin to exert synergistic anticancer activity in colon cancer cells. Patients presenting with multiple colorectal adenomatous polyps (MCRA) have a high lifetime risk for CRC. We present a 57-year-old man with MCRA, without deleterious germline APC or MYH mutations...
October 23, 2017: Revista Española de Enfermedades Digestivas
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