Publications by authors named "Cary Cotton"

Background: Predicting fibrostenotic complications prior to endoscopy in eosinophilic esophagitis (EoE) is challenging and esophageal strictures and narrowing are commonly missed on endoscopy.

Aim: To develop and validate a score to predict fibrostenosis in EoE patients prior to endoscopy.

Methods: We leveraged a large database of newly diagnosed EoE patients.

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Background: While inflammation is implicated in the development of numerous cancers, whether eosinophilic oesophagitis (EoE) increases the risk of oesophageal cancer (OCa) remains understudied.

Aim: To assess whether adults with EoE were more likely to have subsequent OCa diagnosis.

Methods: This case-control study used data from the MarketScan commercial claims database.

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Background & Aims: Few data compare topical corticosteroid (tCS) dosing regimens and outcomes. We aimed to compare treatment outcomes in patients with eosinophilic esophagitis (EoE) by once or twice daily dosing regimens.

Methods: We conducted a retrospective cohort study using the UNC EoE Clinicopathologic Database of newly diagnosed patients with EoE treated with a tCS who had a follow-up endoscopy with biopsy.

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Goals: To determine long-term efficacy and safety of tCS for treatment of EoE.

Background: Maintenance therapy with topical corticosteroids (tCS) is recommended for eosinophilic esophagitis (EoE), but data for long-term use are still needed.

Study: This retrospective cohort study assessed newly diagnosed patients with EoE who were treated with a tCS and had a follow-up endoscopy with biopsy after at least 5 years.

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Article Synopsis
  • Cannabis use is rising among people for both recreational and medical reasons, but there isn't much research on its effects in eosinophilic esophagitis (EoE).
  • A study involved 983 newly diagnosed EoE patients, with 80 reporting cannabis use, mainly through inhalation and daily consumption.
  • Findings indicated that cannabis users had milder initial symptoms but showed worse inflammatory responses after treatment compared to non-users, suggesting that cannabis may negatively affect EoE management.
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Introduction: We aimed to estimate health state utility in eosinophilic esophagitis (EoE) by histologic activity and assess association with disease parameters.

Methods: In this cross-sectional study, we measured health state utility by time trade-off and assessed symptoms with the EoE Symptom Activity Index.

Results: In 51 adults with EoE, the mean utility was 0.

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Background And Aims: Inadequate bowel preparation during colonoscopy is associated with decreased adenoma detection, increased costs, and patient procedural risks. This study aimed to develop a prediction model for identifying patients at high risk of inadequate bowel preparation for potential clinical integration into the EMR.

Methods: A retrospective study was conducted using outpatient screening/surveillance colonoscopies at the University of North Carolina (UNC) from 2017 to 2022.

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Background & Aims: Esophageal strictures are a leading cause of dysphagia, but data regarding the epidemiology of esophageal strictures are limited. This study aimed to investigate the prevalence, health care utilization, and financial burden of esophageal strictures in the United States.

Methods: We performed a retrospective cohort study using 2 large national insurance claims databases (MarketScan and Medicare).

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Angle-resolved low-coherence interferometry (a/LCI) is an optical technique that enables depth-specific measurements of nuclear morphology, with applications to detecting epithelial cancers in various organs. Previous a/LCI setups have been limited by costly fiber-optic components and large footprints. Here, we present a novel a/LCI instrument incorporating a channel for optical coherence tomography (OCT) to provide real-time image guidance.

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Background & Aims: Follow-up (FU) strategies after endoscopic eradication therapy (EET) for Barrett's neoplasia do not consider the risk of mortality from causes other than esophageal adenocarcinoma (EAC). We aimed to evaluate this risk during long-term FU, and to assess whether the Charlson Comorbidity Index (CCI) can predict mortality.

Methods: We included all patients with successful EET from the nationwide Barrett registry in the Netherlands.

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Introduction: In the United States, clinical guidelines recommend daily use of proton pump inhibitors (PPIs) amongst individuals diagnosed with Barrett's esophagus to decrease the risk of progression to dysplasia and neoplasia. Prior studies documenting adherence to PPIs in this population have not characterized heterogeneity in adherence patterns. Factors that may relate to adherence are incompletely described.

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Background And Aims: Liquid nitrogen spray cryotherapy (SCT) is an alternative to radiofrequency ablation (RFA) for eradication of dysplastic Barrett's esophagus (BE). We aimed to assess the safety, efficacy, and durability of SCT in a multicenter U.S.

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We aimed to determine whether residential proximity to permitted swine facilities was associated with an increased risk of eosinophilic esophagitis (EoE) by conducting a case-control study using 2 complementary data sources: 1 from a tertiary care center (n = 401 cases and 1805 controls) and 1 from a large pathology group (n = 904 cases and 4074 controls). Addresses of the subjects and swine facilities were geocoded, and adjusted odds of EoE relative to proximity to and density of swine facilities were calculated. We observed a positive association between proximity to a permitted swine facility (<1 mile) and odds of EoE (adjusted odds ratio R, 2.

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Background: The presentation of eosinophilic esophagitis (EoE) is heterogeneous, but trends over time are not known.

Aim: To determine whether clinical and endoscopic phenotypes at EoE diagnosis have changed over the past 2 decades.

Methods: In this retrospective cohort study, adults and children with newly diagnosed EoE were phenotyped as follows: (1) inflammatory vs fibrostenotic vs mixed on endoscopy; (2) atopic vs non-atopic; (3) age at symptom onset; (4) age at diagnosis; (5) presence of autoimmune or connective tissue disease; and (6) responsive to steroids.

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Background: Predictive models for eosinophilic oesophagitis (EoE) may not fully rule in the diagnosis.

Aim: To develop a reverse model that predicts against EoE to eliminate the need for oesophageal biopsies.

Methods: In this two-centre study, a predictive model was developed (Mayo Clinic) and validated (University of North Carolina [UNC]).

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Objectives: Feeding tubes can provide a temporary or long-term solution for nutritional therapy. Little is known regarding the use of feeding tubes in patients with eosinophilic esophagitis (EoE). We sought to describe the characteristics and outcomes in EoE patients requiring tube feeding.

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Background And Aims: The Index of Severity for EoE (I-SEE) was recently developed. We aimed to determine the relationship between features of eosinophilic esophagitis and disease severity, and assess change in disease severity with topical corticosteroid treatment, using I-SEE.

Methods: We performed a post hoc analysis of an 8-week randomized trial comparing 2 topical corticosteroid formulations in newly diagnosed patients with eosinophilic esophagitis.

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Background And Aims: Alpha-gal allergy causes a delayed reaction to mammalian meats and has been reported worldwide. Patients with the allergy may present with isolated gastrointestinal (GI) symptoms, but this phenotype is poorly understood.

Methods: We pooled and analyzed symptoms and demographics of patients from two prospective cohorts of patients with a diagnosis of alpha-gal allergy who reacted after eating mammalian meat under observation.

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While patients with Barrett's esophagus without dysplasia may benefit from endoscopic surveillance, those with low-grade dysplasia may be managed with either endoscopic surveillance or endoscopic eradication. Patients with Barrett's esophagus with high-grade dysplasia and/or intramucosal adenocarcinoma will generally require endoscopic eradication therapy. The management of Barrett's esophagus with dysplasia and early esophageal adenocarcinoma is predominantly endoscopic, with multiple effective methods available for the resection of raised neoplasia and ablation of flat neoplasia.

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Introduction: Despite societal recommendations supporting Barrett's esophagus (BE) screening, it is unknown what proportion of eligible patients is screened in primary care. We assessed the proportion of BE screening- eligible patients evaluated in the primary care setting receiving upper esophagogastroduodenoscopy (EGD) and identified factors associated with undergoing EGD.

Methods: This was a retrospective study of BE screening-eligible patients, as defined by the American College of Gastroenterology's BE guidelines, in a multipractice healthcare network consisting of 64 internal medicine practices and 94 family medicine (FM) practices.

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Introduction: The correlation between clinical and molecular treatment response thresholds in eosinophilic esophagitis (EoE) is not well understood.

Methods: We evaluated posttreatment EoE diagnostic panel gene expression profiles across histologic and endoscopic thresholds (EREFS) in a prospective adult EoE cohort.

Results: We observed a strong inverse correlation between posttreatment gene score and eosinophil count (R = -0.

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Introduction: Endoscopic eradication therapy with radiofrequency ablation (RFA) and endoscopic mucosal resection is a safe and effective treatment for Barrett's esophagus. Although the outcomes of surveillance endoscopy after successful endoscopic eradication therapy have been described, no previous studies have modeled the natural history or the effect of surveillance endoscopy after successful ablation to prevent progression to invasive esophageal adenocarcinoma.

Methods: The US RFA Registry is a multicenter registry consisting of patients treated with RFA for Barrett's esophagus at 148 institutions (113 community-based and 35 academic-affiliated).

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Background: Achalasia is a rare esophageal motility disorder of uncertain etiology. While past studies have indicated that autoimmune conditions and viral infections may be associated with development of achalasia, these associations are yet to be examined in large, population-based studies.

Methods: A matched case-control study was performed using administrative claim data from the IBM MarketScan Commercial Claims and Encounters Database between 2000 and 2019.

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Background: Endoscopic features of eosinophilic esophagitis (EoE) are measured using the validated EoE Endoscopic Reference Score (EREFS); however, a threshold for treatment response has not been defined. We aimed to determine a cut-point for endoscopic response as measured by EREFS.

Methods: We performed a secondary analysis of a randomized clinical trial comparing budesonide slurry with swallowed fluticasone multidose inhaler for initial treatment of EoE.

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