Publications by authors named "Randall Pellish"

Introduction: Infliximab (IFX) is a standard, inpatient salvage therapy for the treatment of refractory acute severe ulcerative colitis (ASUC). Remicade™ is the originator IFX. Its biosimilar Renflexis™ offers a reduced cost structure.

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Background: Prior authorizations are generally required by insurers for gastroenterologists to prescribe biologics and small-molecule drugs to treat inflammatory bowel disease (IBD). Authorization denials occur in a wide variety of clinical scenarios, including denials of standard and nonstandard medication dosing.

Methods: We performed a national cross-sectional survey on a broad variety of specific clinical scenarios to assess experience and opinions on whether or not insurance authorization denials are in accordance with clinical expertise.

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Purpose: Patients with inflammatory bowel disease (IBD), whether Crohn's disease (CD) or ulcerative colitis (UC), have an increased risk of acute pancreatitis. The prognostic value of diagnosing acute idiopathic pancreatitis in patients with IBD is not well understood.

Methods: A retrospective review of 56 patients with IBD and acute pancreatitis was conducted in a tertiary center from 2011 to 2020.

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Diet is a modifiable, noninvasive, inexpensive behavior that is crucial in shaping the intestinal microbiome. A microbiome "imbalance" or dysbiosis in inflammatory bowel disease (IBD) is linked to inflammation. Here, we aim to define the impact of specific foods on bacterial species commonly depleted in patients with IBD to better inform dietary treatment.

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Background: Tumor necrosis factor alpha (TNFα) is a key cytokine in both the pathogenesis of inflammatory bowel disease (IBD) and rheumatoid arthritis (RA) and the host defense against tuberculosis (TB). Consequently, anti-TNFα medications result in an increased risk of latent TB infection (LTBI) reactivation. Here, we sought to evaluate the factors affecting the results of QuantiFERON-TB Gold In-Tube (QFT-GIT) assay as a screening tool for LTBI.

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A 46-year-old woman with medical history of breast cancer on tamoxifen presented with syncope. On arrival to the hospital, the patient developed massive haematemesis and a subsequent esophagogastroduodenoscopy revealed oesophageal varices without any known history of liver disease. Further evaluation identified portal vein thrombosis probably caused by tamoxifen use.

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Biological drugs have significantly improved the quality of life of patients with inflammatory bowel disease. However, after 15 years of using these drugs in practice, we just now are beginning to better understand how to use them most effectively. It has become evident that antitumor necrosis factor agents, such as infliximab, have variable drug clearance across individuals, mostly related to the disease burden at the time of an infusion.

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Clostridium difficile infection (CDI) has steadily increased in incidence since the 1990s, with an associated increase in recurrence and severity, which has in turn lead to more intensive care unit (ICU) admissions. The development of recurrent CDI, in particular, has been associated with increasing patient morbidity and mortality as well as an immense financial burden on the health care system. Recently, fecal microbiota transplantation (FMT) has received much publicity as an effective means of treatment for recurrent CDI.

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Background: Despite trials demonstrating its efficacy, many physicians harbor concerns regarding the use of natalizumab in the treatment of patients with refractory Crohn's disease (CD). The purpose of this study was to perform a descriptive analysis of a series of CD patients not currently enrolled in a clinical trial.

Methods: A retrospective case review of patients treated with natalizumab at 6 sites in Massachusetts: Boston Medical Center, Beth Israel Deaconess Medical Center, Brigham & Women's Hospital, Lahey Clinic, Massachusetts General Hospital, and UMass Medical Center.

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Background: Colonoscopy has been adopted as the preferred method to screen for colorectal neoplasia in the United States. However, lesions can be missed because of numerous factors, including location on the proximal aspect of folds or flexures, where they may be difficult to detect with the forward-viewing colonoscope. The Third Eye Retroscope (TER) is a disposable device that is passed through the instrument channel of a standard colonoscope to provide a retrograde view that complements the forward view of the colonoscope during withdrawal.

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