Publications by authors named "Posner H"

Background: Acute severe ulcerative colitis (ASUC) affects up to 25% of patients with UC and is associated with an increased risk of colectomy. Despite improvements in medical management, individual patient prognostication and risk stratification in ASUC remains challenging. We explored clinical, biochemical, and endoscopic factors as potential predictors for colectomy in patients hospitalized with ASUC.

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Introduction: The aim of this study was to report the frequency and impact of endoscopic response and remission on the risk of subsequent pouchitis in patients with Crohn's disease-like pouch inflammation (CDLPI) on therapy.

Methods: This was a single-center retrospective study of patients older than 18 years with CDLPI on therapy.

Results: Among 110 included patients with CDLPI in clinical remission, endoscopic remission was not significantly associated with a reduced risk of subsequent pouchitis when compared with endoscopic response.

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Background: Understanding health equity is critical for the development of patient-centered physicians, but few avenues exist for medical students to participate in experiential learning related to social determinants of health (SDOH).

Aim: To create and evaluate the PennHealthX SDOH Accelerator Program, which pairs students with health equity startups.

Setting: The program matches medical students at our institution with startups focused on SDOH for voluntary, part-time internships.

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Article Synopsis
  • Ritlecitinib, a drug being tested for alopecia areata, caused reversible axonal swelling and auditory potential changes in dogs at doses higher than what's approved for humans.
  • * A phase 2a study evaluated the effects of ritlecitinib on auditory and nerve fiber changes in 71 patients, comparing results with a placebo group over 9 months.
  • * Findings showed no significant differences in auditory or nerve fiber measures between the treatment and placebo groups, suggesting that dog toxicity findings may not apply to human patients.
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Article Synopsis
  • The study evaluates the safety, tolerability, and effectiveness of tofacitinib in children and adolescents with juvenile idiopathic arthritis (JIA) in a long-term extension (LTE) study.
  • Out of 225 patients treated with tofacitinib, a high percentage experienced adverse events (AEs), although serious AEs were relatively low, with a focus on infection rates and disease activity.
  • Results showed significant improvement in disease activity scores over time, with a notable increase in patients achieving inactive disease status after 48 months of treatment.
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Introduction: To better inform the risk of cuffitis in patients with ulcerative colitis (UC), we aimed to identify its occurrence and associated precolectomy factors in a large multicenter cohort of patients who underwent restorative proctocolectomy (RPC) with stapled ileal pouch-anal anastomosis (IPAA).

Methods: This study was a retrospective cohort analysis of individuals diagnosed with UC or indeterminate colitis who underwent RPC with IPAA for refractory disease or dysplasia at Mount Sinai Hospital or the University of Chicago followed by at least 1 pouchoscopy with report of the pouch-anal anastomosis. The primary outcome was cuffitis defined as ulceration of the cuff as reported in each pouchoscopy report.

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Background: Pouchitis occurs in up to 80% of patients after total proctocolectomy (TPC) with ileal pouch-anal anastomosis (IPAA) and has been associated with microbial and host-related immunological factors. We hypothesized that a more robust immune response at the time of colectomy, manifested by acute severe ulcerative colitis (ASUC), may be associated with subsequent acute pouchitis.

Methods: This was a retrospective cohort analysis of all patients with UC or indeterminate colitis complicated by medically refractory disease or dysplasia who underwent TPC with IPAA at Mount Sinai Hospital between 2008 and 2017 and at least 1 subsequent pouchoscopy.

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Background: Tofacitinib is an oral Janus kinase inhibitor. This trial assessed the efficacy and safety of tofacitinib versus placebo in patients with polyarticular course juvenile idiopathic arthritis (JIA).

Methods: This double-blind, withdrawal phase 3 trial enrolled patients with polyarticular course JIA (extended oligoarthritis, rheumatoid factor-positive or rheumatoid factor-negative polyarthritis, or systemic JIA without active systemic features) aged 2 years to younger than 18 years, and was done at 64 centres of the Paediatric Rheumatology International Trials Organisation and Pediatric Rheumatology Collaborative Study Group networks in 14 countries.

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Introduction: Despite increases in e-cigarette sales restrictions, support for sales restrictions and perceived impact on young adult use are unclear.

Aims And Methods: We analyzed February-May 2020 data from a longitudinal study of 2159 young adults (ages 18-34; Mage = 24.75 ± 4.

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Given the potential for increased substance use during COVID-19, we examined (1) young adults' changes in cigarette, e-cigarette, marijuana, and alcohol use from pre- to during COVID-19; and (2) related risk/protective factors. These findings could inform intervention efforts aimed at curbing increases in substance use during periods of societal stress. We analyzed Wave 3 (W3; September-December 2019) and Wave 4 (W4; March-May 2020) from the ape shop dvertising, lace characteristics and ffects urveillance (VAPES), a 2-year, five-wave longitudinal study of young adults across six metropolitan areas.

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EUS guided gallbladder drainage.

Transl Gastroenterol Hepatol

July 2020

Cholecystectomy is the gold standard treatment for acute cholecystitis, but it may not be appropriate for patients with significant comorbidities. Percutaneous gallbladder drainage (PT-GBD) and endoscopic transpapillary gallbladder drainage (ET-GBD) are alternatives with good technical and clinical success rates, but are limited by technical challenges and the need for definitive therapy. EUS-guided gallbladder drainage (EUS-GBD) is quickly becoming the preferred modality of treatment at expert centers in this cohort of patients due to increased efficacy and minimal adverse events.

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Assessment of the earlier stages of Alzheimer's disease requires different strategies than those previously developed for fully syndromal Alzheimer's disease . This challenge is further magnified in very early stages, where symptomatology may be minimal and functional deficits very subtle to absent. This paper reviews strategies for performance-based assessment of the early stages of Alzheimer's disease, including assessments of cognition, functional capacity, and social cognition.

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An evolving paradigm shift in the diagnostic conceptualization of Alzheimer's disease is reflected in its recently updated diagnostic criteria from the National Institute on Aging-Alzheimer's Association and the International Working Group. Additionally, it is reflected in the increased focus in this field on conducting prevention trials in addition to improving cognition and function in people with dementia. These developments are making key contributions towards defining new regulatory thinking around Alzheimer's disease treatment earlier in the disease continuum.

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The last decade has seen a substantial increase in research focused on the identification of blood-based biomarkers that have utility in Alzheimer's disease (AD). Blood-based biomarkers have significant advantages of being time- and cost-efficient as well as reduced invasiveness and increased patient acceptance. Despite these advantages and increased research efforts, the field has been hampered by lack of reproducibility and an unclear path for moving basic discovery toward clinical utilization.

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Objective: To evaluate the comparative safety and adjunctive efficacy of pregabalin and gabapentin in reducing seizure frequency in patients with partial-onset seizures based on prestudy modeling showing superior efficacy for pregabalin.

Methods: The design of this comparative efficacy and safety study of pregabalin and gabapentin as adjunctive treatment in adults with refractory partial-onset seizures was randomized, flexible dose, double blind, and parallel group. The study included a 6-week baseline and a 21-week treatment phase.

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The lack of readily available biomarkers is a significant hindrance toward progressing to effective therapeutic and preventative strategies for Alzheimer's disease (AD). Blood-based biomarkers have potential to overcome access and cost barriers and greatly facilitate advanced neuroimaging and cerebrospinal fluid biomarker approaches. Despite the fact that preanalytical processing is the largest source of variability in laboratory testing, there are no currently available standardized preanalytical guidelines.

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Objectives: To assess the efficacy and tolerability of add-on pregabalin controlled-release formulation (PGB-CR) (doses of 165 or 330 mg/day) in patients with partial-onset seizures (POS).

Methods: This was a randomized, double-blind (DB), parallel-group study of PGB-CR once-daily as adjunctive treatment in adults with treatment-resistant partial seizures. After an 8-week baseline period, eligible patients were randomized (1:1:1) to placebo, PGB-CR 165 mg, or PGB-CR 330 mg for 14 weeks, including a 2-week dose escalation.

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Objectives: To assess the comparative efficacy and safety of pregabalin and levetiracetam for the reduction of seizure frequency in patients with partial seizures.

Methods: This was a randomized, double-blind, flexible-dose, parallel-group noninferiority study of pregabalin and levetiracetam (randomized 1:1) as adjunctive treatment in adult patients with refractory partial seizures. The study included a 6-week baseline phase, 4-week dose-escalation phase, and 12-week maintenance phase.

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The Alzheimer's disease (AD) Cognitive Behavior Section (ADAS-Cog) is the most commonly used cognitive test in clinical trials of AD. Recent trials have focused on people earlier in the course of disease; however, there are concerns about using the ADAS-Cog at this crucial stage. Using data from the Alzheimer's disease Neuroimaging Initiative study, we used a range of traditional psychometric tests to evaluate those concerns.

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Background: The Alzheimer's Disease Assessment Scale-Cognitive Behavior section (ADAS-Cog) is the most widely used measure of cognitive performance in AD clinical trials. This key role has rightly brought its performance under increased scrutiny with recent research using traditional psychometric methods, questioning the ADAS-Cog's ability to adequately measure early-stage disease. However, given the limitations of traditional psychometric approaches, herein we use the more sophisticated Rasch Measurement Theory (RMT) methods to fully examine the strengths and weaknesses of the ADAS-Cog, and identify potential paths toward its improvement.

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Background: The Alzheimer's Disease Assessment Scale-Cognitive Behavior section (ADAS-Cog) is the most commonly used cognitive test in AD clinical trials. However, there are concerns about its use in early-stage disease. Herein we examine those concerns using traditional psychometric methods.

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Objective: Examine disparities in routine mammography for women who qualify for Medicaid, because of a work-limiting disability.

Methods: Individual-level data were obtained for women enrolled in Massachusetts Medicaid Managed Care plans who met the 2007 Healthcare Effectiveness Data and Information Set (HEDIS) criteria for the breast cancer screening measure (n=35,171). Disability status was determined from Medicaid eligibility records.

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Background: Recent pathological studies report vascular pathology in clinically diagnosed Alzheimer's disease (AD) and AD pathology in clinically diagnosed vascular dementia (VaD). We compared magnetic resonance imaging (MRI) measures of vascular brain injury (white matter hyperintensities [WMH] and infarcts) with neurodegenerative measures (medial-temporal atrophy [MTA] and cerebral atrophy [CA]) in clinically diagnosed subjects with either AD or VaD. We then examined relationships among these measures within and between the two groups and their relationship to mental status.

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