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https://www.readbyqxmd.com/read/27821077/a-case-series-of-intestinal-adenomatous-polyposis-of-unidentified-etiology-a-late-effect-of-irradiation
#1
Lisanne Sara Rigter, Frank G J Kallenberg, Barbara Bastiaansen, Theo A M van Os, Floor E van Leeuwen, Monique Esther van Leerdam, Evelien Dekker
BACKGROUND: In a large number of patients with multiple gastrointestinal adenomatous polyps, no causal germline mutation can be found. Non-genetic factors may contribute to the development of adenomatous polyps in these unexplained polyposis patients. In the development of gastrointestinal cancer, prior exposure to abdominal radiotherapy has been identified as such a factor, as it increases the gastrointestinal cancer risk in cancer survivors. A relationship of radiotherapy with intestinal polyposis, however, has not yet been described...
November 8, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27783336/attenuated-polyposis-of-the-large-bowel-a-morphologic-and-molecular-approach
#2
Maurizio Ponz de Leon, Monica Pedroni, Luca Roncucci, Federica Domati, Giuseppina Rossi, Giulia Magnani, Annalisa Pezzi, Rossella Fante, Luca Reggiani Bonetti
Attenuated polyposis could be defined as a variant of familial adenomatous polyposis (FAP) in which synchronous polyps of the large bowel range between 10 and 99. We analysed all cases of attenuated polyposis observed over the last 30 years with the objectives: (A) to classify the disease according to different type and proportion of polyps; (B) To ascertain the contribution of APC and MutYH genes; (C) to discover features which could arise the suspicion of mutations; (D) To obtain indications for management and follow-up...
October 25, 2016: Familial Cancer
https://www.readbyqxmd.com/read/27747278/efficacy-of-argon-plasma-coagulation-in-the-management-of-portal-hypertensive-gastropathy
#3
Amr Shaaban Hanafy, Amr Talaat El Hawary
Objectives: Evaluation of the outcome and experience in 2 years of management of portal hypertensive gastropathy (PHG) by argon plasma coagulation (APC) in a cohort of Egyptian cirrhotic patients. Methods: This study was conducted over a 2-year period from January 2011 to February 2013. Upper gastrointestinal endoscopy was performed to evaluate the degree and site of PHG. APC was applied to areas with mucosal vascular lesions. Results: In total, 200 cirrhotic patients were enrolled; 12 patients were excluded due to death (n = 6) caused by hepatic encephalopathy (n = 3), hepatorenal syndrome (n = 2), or chronic lymphatic leukemia (n = 1), or did not complete the treatment sessions (n = 6), so 188 patients completed the study...
October 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27725649/defining-benchmarks-for-adenoma-detection-rate-and-adenomas-per-colonoscopy-in-patients-undergoing-colonoscopy-due-to-a-positive-fecal-immunochemical-test
#4
Robert J Hilsden, Ronald Bridges, Catherine Dube, S Elizabeth McGregor, Christopher Naugler, Sarah M Rose, Alaa Rostom, Steven J Heitman
OBJECTIVES: Although there is an accepted benchmark for adenoma detection rate (ADR) in average risk screening colonoscopy, a benchmark for ADR or the associated quality indicator, adenomas per colonoscopy (APC), for colonoscopies performed for a positive fecal immunochemical test (FIT+) has not been established. The purpose of this study was to propose methods for establishing a benchmark ADR and APC for FIT+ patients. METHODS: In this historical cohort study, we included 15,329 patients aged 50-74 years who underwent a colonoscopy at Alberta Health Services' Colon Cancer Screening Centre, Calgary, Canada, from 1 January 2014 to 30 June 2015 for either investigation of a positive FIT or average risk screening...
October 11, 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27477990/successful-endoscopic-submucosal-dissection-for-early-gastric-cancer-adjacent-to-gastric-cardia-varix
#5
Ko Watanabe, Takuto Hikichi, Jun Nakamura, Tadayuki Takagi, Rei Suzuki, Mitsuru Sugimoto, Yuichi Waragai, Hitomi Kikuchi, Naoki Konno, Hiroyuki Asama, Mika Takasumi, Hiroshi Watanabe, Katsutoshi Obara, Hiromasa Ohira
A 58-year-old man with liver cirrhosis and renal failure was diagnosed with esophageal varices (EVs) and a gastric cardia varix (GCV) by esophagogastroduodenoscopy (EGD). The patient also exhibited early gastric cancer (EGC) in the upper gastric body adjacent to the GCV. The EVs and GCV were treated using endoscopy before endoscopic submucosal dissection (ESD) of the EGC to prevent variceal bleeding during ESD. Endoscopic variceal ligation (EVL) was performed to treat the EVs. In addition, extra-variceal polidocanol injection and argon plasma coagulation (APC) were performed after EVL...
July 30, 2016: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/27406832/increased-variability-in-apc-min-intestinal-tissue-can-be-measured-with-microultrasound
#6
A Fatehullah, S Sharma, I P Newton, A J Langlands, H Lay, S A Nelson, R K McMahon, N McIlvenny, P L Appleton, S Cochran, I S Näthke
Altered tissue structure is a feature of many disease states and is usually measured by microscopic methods, limiting analysis to small areas. Means to rapidly and quantitatively measure the structure and organisation of large tissue areas would represent a major advance not just for research but also in the clinic. Here, changes in tissue organisation that result from heterozygosity in Apc, a precancerous situation, are comprehensively measured using microultrasound and three-dimensional high-resolution microscopy...
July 13, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27353028/distinct-transcriptional-changes-and-epithelial-stromal-interactions-are-altered-in-early-stage-colon-cancer-development
#7
Allen Mo, Stephen Jackson, Kamini Varma, Alan Carpino, Charles Giardina, Thomas J Devers, Daniel W Rosenberg
UNLABELLED: Although the progression of mutated colonic cells is dependent upon interactions between the initiated epithelium and surrounding stroma, the nature of these interactions is poorly understood. Here, the development of an ultrasensitive laser capture microdissection (LCM)/RNA-seq approach for studying the epithelial and stromal compartments of aberrant crypt foci (ACF) is described. ACF are the earliest identifiable preneoplastic lesion found within the human colon and are detected using high-definition endoscopy with contrast dye spray...
September 2016: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/27319229/the-efficacy-of-treatment-of-local-residual-neoplasia-under-standardized-conditions
#8
Ondřej Urban, Barbora Pipek, Ivana Mikoviny Kajzrlíková, Přemysl Falt, Petr Fojtík, Petr Vítek
OBJECTIVES: Piecemeal endoscopic mucosal resection (EMR) is frequently used for the treatment of non-poly-poid colorectal lesions larger than 20 mm. Nevertheless, local residual neoplasia occurs (LRN) in as much as 15 % of cases. The aim of our prospective interventional study was to evaluate the efficacy of treatment of LRN under standardized conditions. METHODS: In two high volume non-university endoscopy centers, LRN has been treated according to the newly proposed classification based on endoscopic appearance by argon plasma coagulation (APC), endoscopic mucosal resection (EMR) or endoscopic submucosal dissection (ESD)...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27299918/septotomy-and-balloon-dilation-to-treat-chronic-leak-after-sleeve-gastrectomy-technical-principles
#9
Josemberg Marins Campos, Flávio Coelho Ferreira, André F Teixeira, Jones Silva Lima, Rena C Moon, Marco Aurélio D'Assunção, Manoel Galvão Neto
BACKGROUND: Chronic leaks after laparoscopic sleeve gastrectomy (LSG) are often difficult to treat by endoscopy metallic stent. Septotomy has been indicated as an effective procedure, but the technical aspects have not been detailed in previous publications (Campos JM, Siqueira LT, Ferraz AA, et al., J Am Coll Surg 204(4):711, 2007; Baretta G, Campos J, Correia S, et al., Surg Endosc 29(7):1714-20, 2015; Campos JM, Pereira EF, Evangelista LF, et al., Obes Surg 21(10):1520-9, 2011). We herein present a video (6 min) demonstrating the maneuver principles of this technique, showing it as a safe and feasible approach...
August 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27239120/longitudinal-molecular-characterization-of-endoscopic-specimens-from-colorectal-lesions
#10
Petra Minarikova, Lucie Benesova, Tereza Halkova, Barbora Belsanova, Stepan Suchanek, Jiri Cyrany, Inna Tuckova, Jan Bures, Miroslav Zavoral, Marek Minarik
AIM: To compare molecular profiles of proximal colon, distal colon and rectum in large adenomas, early and late carcinomas. To assess feasibility of testing directed at molecular markers from this study in routine clinical practice. METHODS: A prospective 3-year study has resulted in the acquisition of samples from 159 large adenomas and 138 carcinomas along with associated clinical parameters including localization, grade and histological type for adenomas and localization and stage for carcinomas...
May 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27136962/endoscopic-variceal-ligation-followed-by-argon-plasma-coagulation-against-endoscopic-variceal-ligation-alone-a-randomized-controlled-trial
#11
Ahmed Kamal, Amr A Abd Elmoety, Yasser Hamza, Ahmed Zeid
GOALS: Our aim was to study the efficacy and the safety of argon plasma coagulation (APC) in secondary prophylaxis against esophageal varices in view of many contraindications and side effects to β-blockers in cirrhotic patients. BACKGROUND: Rebleeding rates from esophageal varices after endoscopic variceal ligation (EVL) are high; thus, the current recommendation is to combine nonselective β-blockers to it, but side effects and relative contraindications to nonselective β-blockers hinder their usage or require discontinuation in 15% to 20% of the cirrhotic patients...
April 30, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27087961/type-1-serrated-polyposis-represents-a-predominantly-female-disease-with-a-high-prevalence-of-dysplastic-serrated-adenomas-without-germline-mutation-in-mutyh-apc-and-pten-genes
#12
Marco Petronio, Stephane Pinson, Thomas Walter, Marie-Odile Joly, Valerie Hervieu, Julien Forestier, Jean-Christophe Saurin
AIM: The aim of this article is to clarify the epidemiologic, clinical, endoscopic, biological and genetic characteristics of type 1 serrated polyposis patients. PATIENTS AND METHODS: Consecutive patients responding to the WHO definition of type 1 serrated polyposis in one reference center for polyposis patients accepted genetic counseling. Detailed data on previous endoscopies, histology, and life habits were recorded, after informed consent, germline analysis of MUTYH, APC, and PTEN germline mutations...
April 2016: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/26981189/chronic-radiation-proctopathy-a-practical-review-of-endoscopic-treatment
#13
REVIEW
Luciano Lenz, Rachel Rohr, Frank Nakao, Ermelindo Libera, Angelo Ferrari
Chronic radiation proctopathy (CRP) is a troublesome complication of pelvic radiotherapy. The most common presentation is rectal bleeding. CRP symptoms interfere with daily activities and decrease quality of life. Rectal bleeding management in patients with CRP represents a conundrum for practitioners. Medical therapy is ineffective in general and surgical approach has a high morbid-mortality. Endoscopy has a role in the diagnosis, staging and treatment of this disease. Currently available endoscopic modalities are formalin, potassium titanyl phosphate laser, neodymium:yttrium-aluminum-garnet laser, argon laser, bipolar electrocoagulation (BiCAP), heater probe, band ligation, cryotherapy, radiofrequency ablation and argon plasma coagulation (APC)...
February 27, 2016: World Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/26981176/new-era-of-colorectal-cancer-screening
#14
REVIEW
Maysaa El Zoghbi, Linda C Cummings
Colorectal cancer (CRC) is the 2(nd) most common cancer in women and 3(rd) most common cancer in men worldwide. Most CRCs develop from adenomatous polyps arising from glandular epithelium. Tumor growth is initiated by mutation of the tumor suppressor gene APC and involves other genetic mutations in a stepwise process over years. Both hereditary and environmental factors contribute to the development of CRC. Screening has been proven to reduce the incidence of CRC. Screening has also contributed to the decrease in CRC mortality in the United States...
March 10, 2016: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/26957067/-clinical-and-molecular-characteristics-of-a-child-with-familial-adenomatous-polyposis
#15
Juan Zhang, Zailing Li, Xuebiao Huang, Juxiang Ye
OBJECTIVE: To explore the clinical features and molecular mutation of early-onset familial adenomatous polyposis(FAP) in childhood. METHOD: The clinical features, endoscopic findings, pathology and therapeutic effect of sulindac during 11 years follow-up in a child with FAP were retrospectively reviewed . Adenomatous polyposis coli (APC) gene mutation analysis was performed by PCR and first generation sequencing. RESULT: This 6-year-old girl was admitted for intermittent bloody stool during the last one and a half years...
March 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/26917412/orthotopic-liver-transplant-for-multifocal-lymphangioendotheliomatosis-with-thrombocytopenia
#16
Christine H Yang, Shengmei Zhou, Sophoclis Alexopoulos, Larry Wang, Howard I Baron, Yuri Genyk, Nanda Kerkar
An eight-yr-old female with a history of multifocal lymphangioendotheliomatosis and thrombocytopenia presented for MVT. The patient had multiple vascular lesions in the skin and stomach in infancy. Although her cutaneous lesions resolved with vincristine and methylprednisolone, her gastric lesions persisted. Eight yr later, she was diagnosed with portal hypertension and decompensating liver function despite therapy with bevacizumab, propranolol, furosemide, and spironolactone. Upon presentation, she was found to have a Kasabach-Merritt-like coagulopathy in association with multiple lesions in her GI tract and persistent gastric lesions...
May 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/26837639/endoscopic-mucosal-resection-of-large-non-ampullary-duodenal-polyps-technical-aspects-and-long-term-therapeutic-outcomes
#17
Natalie Cosgrove, Ali A Siddiqui, Charles A Kistler, Andrew Zabolotsky, Saad S Ghumman, Umar Hayat, Sobia N Laique, Muhammad K Hasan
BACKGROUND: Our aim was to evaluate the efficacy, safety and long term outcomes of endoscopic mucosal resection (EMR) of large non-ampullary duodenal polyps. METHODS: A retrospective review of patients undergoing EMR of non-ampullary duodenal polyps ≥ 10 mm in size was performed. EMR was performed using standard snare polypectomy using pure coagulation current. Patient demographics, polyp site and histopathology, resection technique, use of adjunctive argon plasma coagulation (APC) ablation, adverse events, and residual/recurrent neoplasia at follow-up were evaluated...
June 2016: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/26302944/major-predictors-and-management-of-small-bowel-angioectasia
#18
Atsushi Igawa, Shiro Oka, Shinji Tanaka, Sayoko Kunihara, Makoto Nakano, Taiki Aoyama, Kazuaki Chayama
BACKGROUND: Small-bowel angioectasias are frequently diagnosed with capsule endoscopy (CE) or balloon endoscopy however, major predictors have not been defined and the indications for endoscopic treatment have not been standardized. The aim of this study was to evaluate the predictors and management of small-bowel angioectasia. METHODS: Among patients with obscure gastrointestinal bleeding (OGIB) who underwent both CE and double-balloon endoscopy at our institution, we enrolled 64 patients with small-bowel angioectasia (angioectasia group) and 97 patients without small-bowel angioectasia (non-angioectasia group)...
2015: BMC Gastroenterology
https://www.readbyqxmd.com/read/26219574/wireless-capsule-endoscopy-in-adolescents-with-familial-adenomatous-polyposis
#19
Debora Cavallo, Giovanni Ballardini, Andrea Ferrari, Gabriele Delconte, Stefano Signoroni, Paola Sala, Stefano Chiaravalli, Maura Massimino, Lucio Bertario, Marco Vitellaro
AIMS AND BACKGROUND: Guidelines for surveillance in patients with familial adenomatous polyposis (FAP) recommend mutation carriers to undergo periodic colorectal examination starting in the early teens. Performing colonoscopy in children may lead to complications. Wireless capsule endoscopy (WCE) has been introduced recently to evaluate both the upper and lower gastrointestinal tract, and seems suitable as a first screening examination for adolescents. The aim of this study was to evaluate the pros and cons of WCE...
January 2016: Tumori
https://www.readbyqxmd.com/read/26202952/multiple-gastrointestinal-polyps-in-patients-treated-with-braf-inhibitors
#20
Ravi K Amaravadi, Kathryn E Hamilton, Xiaohong Ma, Shengfu Piao, Armando Del Portillo, Katherine L Nathanson, Matteo S Carlino, Georgina V Long, Igor Puzanov, Xiaowei Xu, Jennifer J D Morrissette, Kenneth Y Tsai, Keith T Flaherty, Jeffrey A Sosman, Grant R Goodman, Grant A McArthur, Anil K Rustgi, David C Metz, Lynn M Schuchter, Paul B Chapman, Antonia R Sepulveda
PURPOSE: BRAF inhibitors (BRAFi) extend survival in BRAF-mutant melanoma but can promote the growth of Ras-mutant neoplasms. This study determined if gastrointestinal polyps found in BRAFi-treated patients harbored Ras mutations. EXPERIMENTAL DESIGN: Colonic and gastric polyps were identified and resected from BRAFi-treated melanoma patients. Next-generation sequencing (NGS) was performed on polyps. The ability of BRAFi to promote polyp formation was functionally characterized in Apc Min(+/-) mice...
December 1, 2015: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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