Publications by authors named "Tyler Pernes"

Background And Aims: Patients with inflammatory bowel disease [IBD] have an increased risk of contracting herpes zoster [HZ] infection. However, vaccination rates for HZ are low among IBD patients. A contributing factor may be fear of an IBD flare associated with vaccination.

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Background: There are limited data on the incidence of pneumonia and pneumonia-related hospitalisation in the IBD population, and on any association of IBD medications with such outcomes.

Aims: To evaluate the impact of IBD medications on the risk of pneumonia, pneumonia-related hospitalisations and death.

Methods: We conducted a retrospective cohort study of IBD patients from the nationwide Veteran Affairs (VA) dataset.

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Background & Aims: Individuals with inflammatory bowel disease (IBD) have an increased risk of herpes zoster (HZ) infection. Although the efficacy of recombinant zoster vaccine (RZV) is high among immunocompetent individuals, little is known about its effect among immunosuppressed individuals with IBD.

Methods: We conducted a retrospective cohort study among individuals in the national Veterans Affairs Healthcare System diagnosed with IBD on or before January 3, 2018, the earliest date of RZV vaccinations.

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Background: The elderly inflammatory bowel disease (IBD) population has historically been under-represented in clinical trials, and data on the efficacy of biologic medications in elderly IBD patients are generally lacking. Our study aims to evaluate the efficacy of vedolizumab (VDZ) among elderly IBD patients and compare it with younger IBD patients in a nationwide population-based cohort of IBD patients.

Methods: We conducted a retrospective cohort study of patients within the US national Veterans Affairs Healthcare System (VAHS).

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Introduction: The clinic course of SARS-CoV-2 among patients with inflammatory bowel disease (IBD) has been extensively studied. However, there is a paucity of data on whether patients with IBD have an increased risk of developing SARS-CoV-2 with compared with patients without IBD.

Methods: We conducted a nationwide retrospective cohort study in the US Veterans' Affairs healthcare system from January 1, 2020, to June 30, 2020.

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Introduction: Acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) are rare myeloid clonal disorders that commonly affect the elderly population and have poor prognosis. There are limited data on the risk of AML/MDS among patients with inflammatory bowel disease (IBD), especially on the impact of thiopurines (TPs).

Methods: We conducted a retrospective cohort study among patients with IBD from Veteran Affairs data set.

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Background: Data on safety and efficacy of switching to Renflexis (SB2) from originator Infliximab (IFX) (single switch) or from originator IFX to Inflectra (CT-P13) to Renflexis (double switch) are limited.

Methods: We conducted a retrospective cohort study in a nationwide cohort of patient with inflammatory bowel disease (IBD) in remission who were switched to SB2. The main exposure was the treatment course of SB2.

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Introduction: Vedolizumab (VDZ) is postulated to have a potentially safer side effect profile than other biologic medications owing to its gut-selective mechanism. However, extrapolating these safety data to older patients is challenging because of their underrepresentation in or exclusion from most clinical trials, higher rates of withdrawal, and higher rates of comorbidities. Our aim was to evaluate the absolute risk of infections and malignancies in an elderly group of patients with inflammatory bowel disease (IBD) exposed to VDZ vs.

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Introduction: There are limited data on repeated basal cell cancer (BCC) occurrences among patients with inflammatory bowel disease (IBD), especially the impact of continuing immunosuppressive medications.

Methods: We conducted a retrospective cohort study of 54,919 patients with IBD followed in the Veterans Affairs Healthcare System. We identified patients who had an incident BCC after their IBD diagnosis.

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