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William Chey

Shahzad Ahmed, Christopher V Almario, William D Chey, Lori A Robbins, Bianca Chang, Joseph Ahn, Jeffrey Ko, Phillip Gu, Alvin Siu, Brennan M R Spiegel
OBJECTIVE: Little is known about the agreement between referring providers' reason for specialty evaluation and patients' understanding of why they are referred for consultation. Here, we compared the reason for consult (RFC) documented by referring providers during usual care vs. the perceived RFC independently reported by patients through an e-portal just prior to the specialist visit. METHODS: We performed an observational study among patients referred for gastrointestinal (GI) evaluation...
March 6, 2018: Informatics for Health & Social Care
Stacy B Menees, Christopher V Almario, Brennan M R Spiegel, William D Chey
BACKGROUND & AIMS: Fecal incontinence (FI) is characterized by uncontrolled passage of solid or liquid stool. We aimed to determine the prevalence and severity of FI in a large sample of United States residents. METHODS: We recruited a representative sample of patients in October 2015 to complete the National Gastrointestinal (GI) Survey; a mobile app called MyGiHealth was used to systematically collect data on GI symptoms. FI was defined as accidental leakage of solid or liquid stool...
February 3, 2018: Gastroenterology
Koldo Garcia-Etxebarria, Tenghao Zheng, Ferdinando Bonfiglio, Luis Bujanda, Aldona Dlugosz, Greger Lindberg, Peter T Schmidt, Pontus Karling, Bodil Ohlsson, Magnus Simren, Susanna Walter, Gerardo Nardone, Rosario Cuomo, Paolo Usai-Satta, Francesca Galeazzi, Matteo Neri, Piero Portincasa, Massimo Bellini, Giovanni Barbara, Daisy Jonkers, Shanti Eswaran, William D Chey, Purna Kashyap, Lin Chang, Emeran A Mayer, Mira M Wouters, Guy Boeckxstaens, Michael Camilleri, Andre Franke, Mauro D'Amato
No abstract text is available yet for this article.
February 2, 2018: Clinical Gastroenterology and Hepatology
William D Chey, Grigorios I Leontiadis, Colin W Howden, Steven F Moss
No abstract text is available yet for this article.
January 2018: American Journal of Gastroenterology
Michael Camilleri, Alexander C Ford, Gary M Mawe, Phil G Dinning, Satish S Rao, William D Chey, Magnus Simrén, Anthony Lembo, Tonia M Young-Fadok, Lin Chang
Chronic constipation is a prevalent condition that severely impacts the quality of life of those affected. Several types of primary chronic constipation, which show substantial overlap, have been described, including normal-transit constipation, rectal evacuation disorders and slow-transit constipation. Diagnosis of primary chronic constipation involves a multistep process initiated by the exclusion of 'alarm' features (for example, unintentional weight loss or rectal bleeding) that might indicate organic diseases (such as polyps or tumours) and a therapeutic trial with first-line treatments such as dietary changes, lifestyle modifications and over-the-counter laxatives...
December 14, 2017: Nature Reviews. Disease Primers
Shanti Eswaran, Jeremy P Farida, Jessica Green, Jesse D Miller, William D Chey
A growing interest from both physicians and patients is fueling research in the interaction of symptoms related to irritable bowel syndrome (IBS) and diet, particularly the low FODMAP diet. Recent studies further define the role of these short-chain fermentable carbohydrates on IBS symptoms and their effects in different parts of the gastrointestinal tract. Mounting evidence supports the use of a low FODMAP diet in the clinical setting, but this dietary approach is not without potential drawbacks. This review illustrates the mechanisms by which the low FODMAP diet leads to improvement in IBS symptoms, summarizes the available clinical evidence, and offers practical advice regarding implementation of this dietary strategy...
December 2017: Current Opinion in Pharmacology
Philip Schoenfeld, Brian E Lacy, William D Chey, Anthony J Lembo, Caroline B Kurtz, David S Reasner, Wieslaw Bochenek, Kenneth Tripp, Mark G Currie, Susan M Fox, Rick E Blakesley, Christopher R O'Dea, Nicholas D Omniewski, Michael L Hall
OBJECTIVES: Linaclotide is a guanylate cyclase-C agonist approved in the United States, Canada, and Mexico at a once-daily 145-μg dose for the treatment of chronic idiopathic constipation (CIC); a once-daily 72-μg dose for CIC recently received FDA approval. The trial objective was to evaluate the efficacy and safety of a 72-μg linaclotide dose in CIC patients. METHODS: This double-blind, placebo-controlled trial randomized patients with CIC (Rome III criteria) to once-daily linaclotide 72 μg or 145 μg, or placebo for 12 weeks...
August 22, 2017: American Journal of Gastroenterology
Tossapol Kerdsirichairat, Eun-Young K Choi, William D Chey
No abstract text is available yet for this article.
September 4, 2017: Gastroenterology
William D Chey
Many nonpharmacologic and pharmacologic therapies are available to manage irritable bowel syndrome (IBS) and chronic idiopathic constipation (CIC). The American College of Gastroenterology (ACG) regularly publishes reviews on IBS and CIC therapies. The most recent of these reviews was published by the ACG Task Force on the Management of Functional Bowel Disorders in 2014. The key objective of this review was to evaluate the efficacy of therapies for IBS or CIC compared with placebo or no treatment in randomized controlled trials...
February 2017: Gastroenterology & Hepatology
William D Chey, Grigorios I Leontiadis, Colin W Howden, Steven F Moss
No abstract text is available yet for this article.
July 2017: American Journal of Gastroenterology
Adrienne Lenhart, William D Chey
Polyols are sugar alcohols found in certain fruits, vegetables, and sugar-free sweeteners. They make up a component of the diet low in fermentable oligosaccharides, disaccharides, monosaccharides, and polyols, which is gaining popularity in the treatment of patients with irritable bowel syndrome (IBS). We conducted a systematic review to evaluate the effects of polyols on the gastrointestinal tract in healthy men and women and in patients with IBS. Utilizing PubMed, Ovid, and Embase databases, we conducted a search on individual polyols and each of these terms: fermentation, absorption, motility, permeability, and gastrointestinal symptoms...
July 2017: Advances in Nutrition
Sarah H Luke, Holly Barclay, Kawi Bidin, Vun Khen Chey, Robert M Ewers, William A Foster, Anand Nainar, Marion Pfeifer, Glen Reynolds, Edgar C Turner, Rory P D Walsh, David C Aldridge
Freshwaters provide valuable habitat and important ecosystem services but are threatened worldwide by habitat loss and degradation. In Southeast Asia, rainforest streams are particularly threatened by logging and conversion to oil palm, but we lack information on the impacts of this on freshwater environmental conditions, and the relative importance of catchment versus riparian-scale disturbance. We studied 16 streams in Sabah, Borneo, including old-growth forest, logged forest, and oil palm sites. We assessed forest quality in riparian zones and across the whole catchment and compared it with stream environmental conditions including water quality, structural complexity, and organic inputs...
June 2017: Ecohydrology: Ecosystems, Land and Water Process Interactions, Ecohydrogeomorphology
Shanti Eswaran, William D Chey, Kenya Jackson, Sivaram Pillai, Samuel W Chey, Theresa Han-Markey
BACKGROUND & AIMS: We investigated the effects of a diet low in fermentable oligo-, di-, and monosaccharides and polyols (FODMAPs) vs traditional dietary recommendations on health-related quality of life (QOL), anxiety and depression, work productivity, and sleep quality in patients with irritable bowel syndrome and diarrhea (IBS-D). METHODS: We conducted a prospective, single-center, single-blind trial of 92 adult patients with IBS-D (65 women; median age, 42...
December 2017: Clinical Gastroenterology and Hepatology
Brian E Lacy, William D Chey, Brooks D Cash, Anthony J Lembo, Leonard S Dove, Paul S Covington
This corrects the article DOI: 10.1038/ajg.2017.72.
May 30, 2017: American Journal of Gastroenterology
Brian E Lacy, William D Chey, Brooks D Cash, Anthony J Lembo, Leonard S Dove, Paul S Covington
OBJECTIVES: Irritable bowel syndrome with diarrhea (IBS-D) is often managed with over-the-counter therapies such as loperamide, though with limited success. This analysis evaluated the efficacy of eluxadoline in patients previously treated with loperamide in two phase 3 studies. METHODS: Adults with IBS-D (Rome III criteria) were enrolled and randomized to placebo or eluxadoline (75 or 100 mg) twice daily for 26 (IBS-3002) or 52 (IBS-3001) weeks. Patients reported loperamide use over the previous year and recorded their rescue loperamide use during the studies...
June 2017: American Journal of Gastroenterology
William D Chey
No abstract text is available yet for this article.
March 2017: Journal of Gastroenterology and Hepatology
William D Chey, Anthony J Lembo, David P Rosenbaum
OBJECTIVES: Tenapanor is a first-in-class, small-molecule inhibitor of the gastrointestinal sodium/hydrogen exchanger NHE3. This study assessed the efficacy and safety of tenapanor in patients with constipation-predominant irritable bowel syndrome (IBS-C). METHODS: In this phase 2, double-blind study, patients with IBS-C (Rome III criteria) were randomized (1:1:1:1) to receive tenapanor 5 mg, 20 mg, or 50 mg b.i.d., or placebo b.i.d. for 12 weeks. The primary end point was the complete spontaneous bowel movement (CSBM) responder rate, defined as the proportion of patients reporting an increase from baseline of ≥1 CSBM/week for ≥6/12 treatment weeks...
May 2017: American Journal of Gastroenterology
Tannaz Guivatchian, Erika S Koeppe, Jason R Baker, Cristina Moisa, Matthew Demerath, Caitlin Foor-Pessin, William D Chey, Shanti L Eswaran, Joseph C Kolars, Stacy B Menees, Michael Rajala, Michael D Rice, Rafat Rizk, Joel H Rubenstein, Pratima Sharma, Andrea Todisco, Elena M Stoffel
BACKGROUND AND AIMS: Family history is crucial in stratifying patients' risk for colorectal cancer (CRC). Previous risk assessment tools developed for use in clinic or endoscopy settings have demonstrated suboptimal specificity for identifying patients with hereditary cancer syndromes. Our aim was to test the feasibility and performance of 2 family history surveys (paper and electronic) in individuals presenting for outpatient colonoscopy. METHODS: Patients presenting for outpatient colonoscopy at a tertiary care center were asked to complete a 5-question paper risk assessment survey (short paper survey) either alone or in conjunction with a second, comprehensive electronic family risk assessment survey (comprehensive tablet survey)...
October 2017: Gastrointestinal Endoscopy
William D Chey, Grigorios I Leontiadis, Colin W Howden, Steven F Moss
Helicobacter pylori (H. pylori) infection is a common worldwide infection that is an important cause of peptic ulcer disease and gastric cancer. H. pylori may also have a role in uninvestigated and functional dyspepsia, ulcer risk in patients taking low-dose aspirin or starting therapy with a non-steroidal anti-inflammatory medication, unexplained iron deficiency anemia, and idiopathic thrombocytopenic purpura. While choosing a treatment regimen for H. pylori, patients should be asked about previous antibiotic exposure and this information should be incorporated into the decision-making process...
February 2017: American Journal of Gastroenterology
William Y Chey, Vincent Chang, Cameron M Hoellrich, Kae Yol Lee, Maxine Lubkin, Deborah Corcoran, Ta-Min Chang, William D Chey
BACKGROUND: A subset of female patients with severe constipation report overlapping uro-gynecological symptoms which have been attributed to visceral hypersensitivity. AIMS: To study colon morphology and motor function in female patients with medically refractory chronic constipation with or without uro-gynecological symptoms and to assess clinical outcomes following laparoscopic ileo-proctostomy. METHODS: Colon anatomy and cecal emptying time were assessed with plain films and fluoroscopy following a standardized test meal mixed with barium...
January 2017: Digestive Diseases and Sciences
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