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https://www.readbyqxmd.com/read/28631728/acg-and-cag-clinical-guideline-management-of-dyspepsia
#1
Paul M Moayyedi, Brian E Lacy, Christopher N Andrews, Robert A Enns, Colin W Howden, Nimish Vakil
We have updated both the American College of Gastroenterology (ACG) and the Canadian Association of Gastroenterology (CAG) guidelines on dyspepsia in a joint ACG/CAG dyspepsia guideline. We suggest that patients ≥60 years of age presenting with dyspepsia are investigated with upper gastrointestinal endoscopy to exclude organic pathology. This is a conditional recommendation and patients at higher risk of malignancy (such as spending their childhood in a high risk gastric cancer country or having a positive family history) could be offered an endoscopy at a younger age...
June 20, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28624647/comparing-eus-fine-needle-aspiration-and-eus-fine-needle-biopsy-for-solid-lesions-a-multicenter-randomized-trial
#2
Satish Nagula, Kamron Pourmand, Harry Aslanian, Juan Carlos Bucobo, Tamas Gonda, Susana Gonzalez, Adam Goodman, Seth A Gross, Sammy Ho, Christopher J DiMaio, Michelle Kim, Shireen Pais, John Poneros, David Robbins, Felice Schnoll-Sussman, Amrita Sethi, Jonathan M Buscaglia
BACKGROUND & AIMS: Endoscopic ultrasound (EUS) with fine needle aspiration (FNA) is the standard of care for tissue sampling of solid lesions adjacent to the GI tract. Fine needle biopsy (FNB) may provide higher diagnostic yield with fewer needle passes. The aim of this study was to assess the difference in diagnostic yield between FNA and FNB. METHODS: This is a multicenter, prospective randomized clinical trial from six large tertiary care centers. Patients referred for tissue sampling of solid lesions were randomized to either FNA or FNB of the target lesion...
June 14, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28621294/endoscopic-ultrasound-with-tissue-sampling-is-accurate-in-the-diagnosis-and-subclassification-of-gastrointestinal-spindle-cell-neoplasms
#3
Dalbir Singh Sandhu, Adrian N Holm, Rami El-Abiad, Carolyn Rysgaard, Chris Jensen, Henning Gerke
BACKGROUND AND OBJECTIVES: Mesenchymal (spindle cell) neoplasms (SCN) of the gastrointestinal (GI) tract are an important subtype of subepithelial lesions that need subclassification to assess their malignant potential. Reported success rates of accurate subclassification with endoscopic ultrasound (EUS)-guided biopsies are variable. Our goal was to analyze our experience using EUS-guided TruCut biopsy (EUS-TCB) in the majority of patients. METHODS: Retrospective analysis in patients who underwent EUS with biopsies for suspected SCN at our tertiary referral center between 2004 and 2013...
May 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28621291/role-of-endoscopic-ultrasound-and-endoscopic-ultrasound-guided-fine-needle-aspiration-in-endoscopic-biopsy-negative-gastrointestinal-lesions
#4
Hussein Hassan Okasha, Mohamed Naguib, Mohamed El Nady, Reem Ezzat, Emad Al-Gemeie, Waleed Al-Nabawy, Wael Aref, Ahmed Abdel-Moaty, Karim Essam, Ahmed Hamdy
BACKGROUND AND OBJECTIVES: Many cases of gastrointestinal (GI) tumors as lymphoma, adenocarcinoma, and most of submucosal tumors (SMT) such as gastrointestinal stromal tumor (GIST) and leiomyoma are difficult to diagnose as they frequently yield negative endoscopic biopsies. We evaluated the accuracy of endoscopic ultrasound (EUS) and EUS-guided fine-needle aspiration (EUS-FNA) in the diagnosis of endoscopic biopsy negative GI tumors. PATIENTS AND METHODS: One hundred and nine patients with biopsy negative GI tumors were included in this prospective study...
May 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28615369/clinical-development-of-pd-1-pd-l1-immunotherapy-for-gastrointestinal-cancers-facts-and-hopes
#5
Ian Chau
Gastrointestinal (GI) cancers are among the most deadly malignancies. Whereas serial incremental survival benefits have been made with cytotoxic chemotherapy with metastatic disease, a plateau of achievement has been reached. Applying modern integrative genomic technology, distinct molecular subgroups have been identified in GI cancers. This not only highlighted the heterogeneity in tumours of each primary anatomical site, it also identified novel therapeutic targets in distinct molecular subgroups and might improve the yield of clinical success...
June 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28611935/gastrointestinal-amyloidosis-review-of-the-literature
#6
REVIEW
Kyle Rowe, Jon Pankow, Fredy Nehme, William Salyers
Gastrointestinal amyloidosis (GIA), a protein deposition disorder, represents a complex common pathway that encompasses multiple etiologies and presentations. It represents a significant diagnostic and treatment challenge. The disease results from the deposition of insoluble extracellular protein fragments that have been rendered resistant to digestion. GIA can be acquired or genetic, and most commonly results from chronic inflammatory disorders (AA amyloidosis), hematologic malignancy (AL amyloidosis), and end-stage renal disease (Beta-2 amyloidosis)...
May 8, 2017: Curēus
https://www.readbyqxmd.com/read/28611823/genetic-variability-as-a-regulator-of-tlr4-and-nod-signaling-in-response-to-bacterial-driven-dna-damage-response-ddr-and-inflammation-focus-on-the-gastrointestinal-gi-tract
#7
REVIEW
Evagelia Spanou, Polyxeni Kalisperati, Ioannis S Pateras, Alexandros Papalampros, Alexandra Barbouti, Athanasios G Tzioufas, Athanassios Kotsinas, Stavros Sougioultzis
The fundamental role of human Toll-like receptors (TLRs) and NOD-like receptors (NLRs), the two most studied pathogen recognition receptors (PRRs), is the protection against pathogens and excessive tissue injury. Recent evidence supports the association between TLR/NLR gene mutations and susceptibility to inflammatory, autoimmune, and malignant diseases. PRRs also interfere with several cellular processes, such as cell growth, apoptosis, cell proliferation, differentiation, autophagy, angiogenesis, cell motility and migration, and DNA repair mechanisms...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28608155/pathophysiology-of-gastric-nets-role-of-gastrin-and-menin
#8
REVIEW
Sinju Sundaresan, Anthony J Kang, Juanita L Merchant
PURPOSE OF REVIEW: Neuroendocrine tumors (NETs) were initially identified as a separate entity in the early 1900s as a unique malignancy that secretes bioactive amines. GI-NETs are the most frequent type and represent a unique subset of NETs, because at least 75% of these tumors represent gastrin stimulation of the enterochromaffin-like cell located in the body of the stomach. The purpose of this review is to understand the specific role of gastrin in the generation of Gastric NETs (G-NETs)...
July 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28594718/risk-of-ovarian-involvement-in-advanced-colorectal-or-appendiceal-tumors-involving-the-peritoneum
#9
Akash M Mehta, Mark B Bignell, Sue Alves, Sanjeev P Dayal, Faheez Mohamed, Tom D Cecil, Brendan J Moran
BACKGROUND: Ovarian metastases of GI tumors grow rapidly and are relatively resistant to systemic chemotherapy. They may be unilateral or bilateral and macroscopic or occult. The risk of macroscopic ovarian involvement or occult involvement of macroscopically normal ovaries is unquantified. OBJECTIVE: This study aims to quantify the risks of ovarian involvement in patients with peritoneal malignancy undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy...
July 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28565893/positron-emission-tomography-computer-tomography-in-gastrointestinal-malignancies-current-potential-and-challenges
#10
Sofie Tind, Sys Vestergaard, Ziba A Farahani, Søren Hess
The use of FDG-PET/CT in GI-malignancies may not be as straightforward as in many other cancers, but the potential is clearly there in select clinical settings. The challenges include the relative non-specificity of FDG, the variable degrees of physiologic FDG-uptake, and the heterogeneous FDG-uptake in different cell types within the GI-domain, which all together hamper the use in primary diagnostics. In general, the literature is older, heterogeneous, and based on standalone PET, which is now largely considered obsolete...
May 30, 2017: Minerva Chirurgica
https://www.readbyqxmd.com/read/28533998/ipilimumab-as-a-cause-of-severe-pan-colitis-and-colonic-perforation
#11
Raj Shah, Danielle Witt, Talal Asif, Fahad F Mir
Ipilimumab is a human monoclonal antibody that functions as a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) inhibitor that is used to treat malignant melanoma. Due to ipilimumab's removal of immune regulation, specifically through the inactivation of CTLA-4, it is commonly associated with inflammatory and autoimmune events. Gastrointestinal (GI) related immune-related adverse events such as diarrhea occur in 29% of patients with 7.6% of patients specifically suffering from colitis. We describe a case of colonic perforation with ipilimumab use...
April 20, 2017: Curēus
https://www.readbyqxmd.com/read/28533658/checkpoint-inhibitors-in-gastrointestinal-cancers-expectations-and-reality
#12
EDITORIAL
Hampig Raphael Kourie, Samer Tabchi, Marwan Ghosn
Immune checkpoint inhibitors represent revolutionary anti-cancer agents, being rapidly approved in different malignancies and settings. Gastrointestinal (GI) cancers represent a wide variety of tumors with specific characteristics and different responses to various therapeutic alternatives; while some are chemo-sensitive others are chemo-resistant and only respond to more aggressive cytotoxic regimens, targeted therapies or a combination of both. Preliminary results of immune checkpoint inhibitors in some GI cancers are promising, namely in hepatocellular carcinoma, anal cancers and microsatellite instability high colorectal cancers...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28522912/recent-upper-gastrointestinal-panendoscopy-increases-the-risk-of-pyogenic-liver-abscess
#13
Ming-Jen Tsai, Chin-Li Lu, Ying C Huang, Chung Hsien Liu, Wan-Ting Huang, Kai-Yuan Cheng, Solomon Chih-Cheng Chen
AIM: To investigate the association between a recent gastrointestinal (GI) endoscopy and the subsequent risk of pyogenic liver abscess (PLA). METHODS: We designed a nested case control study. Using the Taiwan National Health Insurance Research Database, 2135 patients with a first diagnosis of PLA were identified from 1998 to 2011. Another 10675 patients without PLA matched by age and sex were selected as reference controls. We identified and compared the possible risk factors for PLA and GI endoscopies performed before the index date (when PLA was diagnosed) between the two cohorts...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28498235/hospital-minimally-invasive-surgery-utilization-for-gastrointestinal-cancer
#14
Meredith C Mason, Hop S Tran Cao, Samir S Awad, Farhood Farjah, George J Chang, Nader N Massarweh
OBJECTIVE: The aim of the study was to evaluate the impact of receiving care at high minimally invasive surgery (MIS)-utilizing hospitals BACKGROUND:: MIS techniques are used across surgical specialties. The extent of MIS utilization for gastrointestinal (GI) cancer resection and impact of receiving care at high utilizing hospitals is unclear. METHODS: This is a retrospective cohort study of 137,581 surgically resected esophageal, gastric, pancreatic, hepatobiliary, colon, and rectal cancer patients within the National Cancer Data Base (2010-2013)...
May 11, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28496533/the-diagnostic-value-of-alarm-features-for-identifying-types-and-stages-of-upper-gastrointestinal-malignancies
#15
Shou-Wu Lee, Chi-Sen Chang, Hong-Jeh Yeh, Han-Chung Lien, Teng-Yu Lee, Yen-Chun Peng
BACKGROUND: Upper gastrointestinal (GI) malignancies are an uncommon cause of dyspepsia but of great concern. The aim of this study was to determine the association between alarm features and each type and stage of upper GI malignancies. METHODS: Patients who underwent endoscopy for symptoms of dyspepsia between January 2008 and December 2009 were retrospectively collected. Alarm features studied in this study were dysplasia, body weight loss and GI bleeding. Patients were classified according to the findings of endoscopy and histological reports...
April 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28494535/tak-264-mln0264-in-previously-treated-asian-patients-with-advanced-gastrointestinal-carcinoma-expressing-guanylyl-cyclase-c-results-from-an-open-label-non-randomized-phase-1-study
#16
Yung-Jue Bang, Toshimi Takano, Chia-Chi Lin, Adedigbo Fasanmade, Huyuan Yang, Hadi Danaee, Takayuki Asato, Thea Kalebic, Hui Wang, Toshihiko Doi
Purpose: This phase 1 dose-escalation portion of the study evaluated the safety, pharmacokinetics (PK), and antitumor activity of TAK-264 in Asian patients with advanced gastrointestinal (GI) carcinoma or metastatic or recurrent gastric or gastroesophageal junction adenocarcinoma expressing guanylyl cyclase C (GCC). Materials and Methods: Adult patients with advanced GI malignancies expressing GCC (H-score ≥ 10) received TAK-264 on day 1 of 3-week cycles as 30-minute intravenous infusions for up to 1 year or until disease progression or unacceptable toxicity...
May 10, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28469356/submucosal-tunneling-endoscopic-resection-of-upper-gastrointestinal-tract-tumors-arising-from-muscularis-propria
#17
REVIEW
Deepanshu Jain, Aakash Desai, Ejaz Mahmood, Shashideep Singhal
The management of incidentally discovered small upper gastrointestinal (GI) tract submucosal tumors (SMT) remains debatable. In this review, we summarize the evolving experience with submucosal tunneling endoscopic resection (STER) of upper GI SMTs originating from the muscularis propria. From 16 original studies, we reviewed a total of 703 patients with 736 lesions. Of these, 436 were located in the esophagus, 146 in the esophagogastric junction (EGJ) and 154 in the stomach. The composite complete resection rate (CRR) for STER of upper GI tumors arising from the muscularis propria layer was 99...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28469125/mucosa-associated-lymphoid-tissue-malt-lymphoma-of-the-colon-a-case-report-and-a-literature-review
#18
Hafsa Abbas, Masooma Niazi, Jasbir Makker
BACKGROUND Non-Hodgkin lymphoma (NHL) is a well-known hematologic malignancy. The gastrointestinal (GI) tract is the most commonly involved extra nodal site. MALT lymphomas are uncommon, accounting for 5% of all NHL. Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is the prototype seen in association with Helicobacter pylori. Colonic MALT lymphoma is rare and comprises only 2.5% of the MALT lymphomas. Its etiology and treatment is not well established.  CASE REPORT A 56-year-old Hispanic woman presented to the clinic with symptoms of chronic epigastric pain for the past three years and a 13-pound weight loss over the past two months...
May 4, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28465190/size-related-cytotoxicological-aspects-of-polyvinylpyrrolidone-capped-platinum-nanoparticles
#19
Hana Buchtelova, Simona Dostalova, Petr Michalek, Sona Krizkova, Vladislav Strmiska, Pavel Kopel, David Hynek, Lukas Richtera, Andrea Ridoskova, Pavlina Adam, Jindrich Kynicky, Martin Brtnicky, Zbynek Heger, Vojtech Adam
The nanotechnological concept is based on size-dependent properties of particles in the 1-100 nm range. Nevertheless, the connection between their size and effect is still not clear. Thus, we focused on reductive colloidal synthesis, characterization and biological testing of Pt nanoparticles (PtNPs) capped with biocompatible polymer polyvinylpyrrolidone (PVP). Synthesized PtNPs were of 3 different primary sizes (approx. ∼10; ∼14 and > 20 nm) and demonstrated exceptional haemocompatibility. In vitro treatment of three different types of malignant cells (prostate - LNCaP, breast - MDA-MB-231 and neuroblastoma - GI-ME-N) revealed that even marginal differences in PtNPs diameter resulted in changes in their cytotoxicity...
April 30, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28456590/management-of-patients-with-pancreatic-cystic-lesions-a-case-based-survey
#20
B Müssle, M Distler, S Wolk, S V Shrikhande, D E Aust, A Arlt, J Weitz, T Hackert, T Welsch
BACKGROUND: Pancreatic cystic lesions (PCL), including intraductal papillary mucinous neoplasia (IPMN), harbor different malignant potential and the optimal management is often challenging. The present study aims to depict the compliance of experts with current consensus guidelines and the accuracy of treatment recommendations stratified by the medical specialty and hospital volume. METHODS: An international survey was conducted using a set of 10 selected cases of PCL that were presented to a cohort of international experts on pancreatology...
May 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
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