Publications by authors named "Geoffrey Forbes"

Danese S, Vermeire S, Zhou W, et al. Lancet. 2022;399:2113-28.

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Background And Aim: Human papilloma virus-associated anal intraepithelial neoplasia (AIN) precedes most anal cancers and can be detected at colonoscopy. We aimed to quantify AIN detection rates in a general population undergoing colonoscopy.

Methods: A retrospective review of a community-based practice for 2 years until December 2019 was conducted.

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Make a distinction between investigating symptoms and screening for disease. Understand the performance characteristics of a test for those with symptoms and for screening those without symptoms, whether at elevated risk or average risk of disease. Positive test results require patient education and follow-up.

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A 57-yr-old female Sumatran orangutan ( Pongo abelii) presented with signs of intermittent lethargy and inappetence, then subsequently developed profuse hemorrhagic diarrhea. Colonoscopy under anesthesia revealed diverticulosis of the descending colon, with multiple large diverticula containing fecoliths. There was no evidence of diverticulitis, but a regenerative anemia had developed following an acute diverticular bleed.

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Background: Mesenchymal stromal cells (MSC) are multipotent adult stem cells with immunomodulatory properties. They uniquely express HLA class I antigen at a low level, and do not express HLA class II. Hence, for allogeneic administration, donor to recipient matching is not required; yet a prolonged chimeric state does not occur.

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Diagnostic dilemmas in celiac disease.

Expert Rev Gastroenterol Hepatol

September 2013

Celiac disease (CD) is an immune-mediated systemic condition triggered by dietary gluten occurring in genetically susceptible individuals. Our understanding of its numerous and varied clinical presentations has evolved over time, which has contributed to the incidence of CD increasing. In most cases, the diagnosis is readily established and patients promptly improve after commencing a gluten-free diet (GFD).

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Background & Aims: Transplantation of peripheral blood stem cells has been successful therapy for small numbers of patients with Crohn's disease (CD), but requires prior myeloconditioning. Mesenchymal stromal cells (MSCs) escape immune recognition, so myeloconditioning is not required before their administration. We investigated the efficacy of allogeneic MSCs in patients with luminal CD.

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Bleeding from the GI tract is a commonly encountered clinical problem after percutaneous coronary intervention. The GI tract is likely to become the most commonly encountered site of bleeding as cardiologists adopt smaller access sheath sizes, percutaneous closure devices and a radial artery approach, further reducing access-site bleeding. To appropriately manage gastrointestinal bleeding in this setting, the clinician must strike a balance between arresting hemorrhage and preventing ischemic coronary complications.

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To quantify the risk and types of sequelae attributable to prior enteric infections, we undertook a population-based retrospective cohort study using linked administrative records. The risk for first-time hospitalization for sequelae was modeled by using Cox proportional regression analysis controlling for other health and sociodemographic factors. We identified a significant increase of 64% in the rate of first-time hospitalization for sequelae for persons with prior enteric infections: 52% for intragastrointestinal sequelae and 63% for extragastrointestinal sequelae compared with first-time hospitalization for those without prior infection.

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The past decade has seen major advances internationally in the implementation of colorectal cancer screening, influenced in differing ways by the profession, the public and by government. Relatively unique to colorectal cancer screening is the availability of so many test alternatives, which have substantial variation in methodology. While perhaps spoilt for choice, discerning the key advantages and disadvantages of each test is often difficult, depending on the perspective from which screening is viewed.

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Background And Aim: Although direct access colonoscopy is a common practice, some consider the level of informed consent as inadequate, and therefore a medico-legal concern. The aim of this study was to assess the adequacy of informed consent from a patient perspective in a direct access colonoscopy service.

Methods: All patients having outpatient colonoscopy from May 2003 to February 2004 at a direct access colonoscopy service were considered for inclusion into the study.

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Background: Hemorrhagic complications of acute coronary syndromes and percutaneous coronary intervention (PCI) are associated with increased mortality. Upper gastrointestinal (UGI) bleeding after PCI is a potential target for preventative strategies.

Objective: To evaluate the risk factors for UGI bleeding in a large cohort of contemporary PCI patients and assess the outcomes of medical and endoscopic management.

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