Publications by authors named "Leon Fogelfeld"

Objective: To assess response predictors to radioactive iodine (RAI) therapy without using thyroid uptake for dose estimate in patients pretreated with methimazole.

Methods: Retrospective analysis was performed of patients with Graves' disease treated with RAI doses determined without using uptake studies.

Results: In 242 patients (median age, 41.

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Objective: The commonly held association of hyperthyroidism with sinus tachycardia and widened pulse pressure (PP) has not been reassessed in decades despite patients with hyperthyroidism in current practice not always present with these signs. The study objective was to assess prevalence and variability of sinus tachycardia and widened PP in present day among individuals with different degrees of hyperthyroidism.

Methods: Data was collected retrospectively from 248 adult patients in an outpatient setting with biochemical evidence of hyperthyroidism, recorded heart rate (HR) and blood pressure (BP) who were not treated with medications that can influence these parameters.

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Objective: To assess the response of serum triglycerides (TG) to continuous insulin infusion (CII) in adults with hypertriglyceridemia-associated acute pancreatitis (HTGP).

Methods: Retrospective analysis of TG response to standardized CII therapy in 77 adults admitted to intensive care with TG >1000 mg/dL and HTGP.

Results: Participants had initial TG 3869.

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Background: Glucocorticoid (GC)-exacerbated hyperglycemia is prevalent in hospitalized patients with diabetes mellitus (DM) but evidence-based insulin guidelines in inpatient settings are lacking.

Methods And Findings: Retrospective cohort study with capillary blood glucose (CBG) readings and insulin use, dosed with 50% basal (glargine)-50% bolus (lispro) insulin, analyzed in hospitalized patients with insulin-treated DM given GC and matched controls without GC (n = 131 pairs). GC group (median daily prednisone-equivalent dose: 53.

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Objective: Guidelines recommend withdrawing mineralocorticoid-receptor antagonists (MRAs) for 4 weeks prior to adrenal vein sampling (AVS), but this is not always feasible because of hypertension and hypokalemia. This retrospective study of primary aldosteronism (PA) patients who underwent AVS between 2008 and 2018 assessed the effect of continuing MRA on the AVS procedure.

Methods: Clinical data including antihypertensive regimen defined by the World Health Organization Daily Defined Dose (DDD) system were collected for 19 patients with adequate cannulation and lateralization during AVS.

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Background: This study characterizes factors affecting glycemic control in a predominately African American and Hispanic population with newly diagnosed type 2 diabetes (T2DM).

Methods: Retrospective longitudinal cohort study of 1638 patients with newly diagnosed T2DM to determine factors associated with improved HbA (ΔHbA ≤ - 0.5%) and achieving target HbA < 7%.

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Objective: For those with type 2 diabetes mellitus (T2DM), impact of short-term high-dose glucocorticoid exposure on beta-cell function is unknown. This study aims to compare the impact on beta-cell function and insulin resistance of prednisone 40 mg between adults with newly diagnosed T2DM and healthy adults.

Methods: Five adults with T2DM and five healthy adults, all between 18-50 years, were enrolled.

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Purpose: The Acromegaly Treatment Satisfaction Questionnaire (Acro-TSQ) is a new patient-reported outcome (PRO) measure for patients with acromegaly receiving injectable somatostatin analogs (SSAs) to assess clinical symptoms and adverse drug reaction interference, treatment satisfaction, and convenience. We evaluated its scale structure, reliability, validity, responsiveness, and what constitutes clinically meaningful change.

Methods: Data from two longitudinal studies (N = 79 and 82) of patients receiving a stable injectable SSA dose for ≥ 6 months who completed the Acro-TSQ and other collateral measures (e.

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Purpose: Somatostatin analogs (SSAs) represent a mainstay of medical treatment for acromegaly, currently available as either intramuscular or deep subcutaneous injections. Patient-reported outcomes (PROs) are increasingly common as relevant outcomes in studies of acromegaly and its treatment, but there are no validated PRO measures available that focus on the disease burden and the impact of treatment, specifically designed for use in patients with acromegaly. We sought to develop a new and unique PRO measure, the Acromegaly Treatment Satisfaction Questionnaire (Acro-TSQ).

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African-Americans have the highest rates of chronic kidney disease due to type 2 diabetes (T2DM-CKD) and of progression to end-stage renal disease. The purpose of this study was to describe African-American's perceptions of T2DM-CKD: specifically, perceptions of cause, risk, severity, self-management of T2DM-CKD before and after diagnosis, and overall effect on their lives. Informed by the Common Sense Model of Illness, a cross-sectional qualitative study using purposive sampling was conducted.

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Context: Psychogenic adipsic hypernatremia is an exceedingly rare and life-threatening condition, occurring in those with severe psychiatric disorders. Its diagnosis requires exclusion of congenital or acquired hypothalamic pathologic entities. We present the case of a patient who experienced transient severe hypernatremia without evidence of brain pathologic features or known psychiatric disease.

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We previously developed a predictive model to assess the risk of developing acute pancreatitis (AP) in patients with severe hypertriglyceridemia (HTG). In this study, we aimed to externally validate this model. The validation cohort included cross-sectional data between 2013 and 2017.

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Background: African Americans suffer more than non-Hispanic whites from type 2 diabetes, but diabetes self-management education (DSME) has been less effective at improving glycemic control for African Americans. Our objective was to determine whether a novel, culturally tailored DSME intervention would result in sustained improvements in glycemic control in low-income African-American patients of public hospital clinics.

Research Design And Methods: This randomized controlled trial (n = 211) compared changes in hemoglobin A1c (A1c) at 6, 12, and 18 months between two arms: (1) Lifestyle Improvement through Food and Exercise (LIFE), a culturally tailored, 28-session community-based intervention, focused on diet and physical activity, and (2) a standard of care comparison group receiving two group DSME classes.

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Background: Insulin resistance contributes to the metabolic syndrome, which is associated with the development of kidney disease. However, it is unclear if insulin resistance independently contributes to an increased risk of chronic kidney disease (CKD) progression or CKD complications. Additionally, predisposing factors responsible for insulin resistance in the absence of diabetes in CKD are not well described.

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Objective: To characterize the clinical presentation of newly diagnosed type 2 diabetes of ethnic minority adults in Chicago and compare with other populations.

Research Design And Methods: Cross-sectional study examining the data of 2280 patients newly diagnosed with type 2 diabetes treated between 2003 and 2013 in a large Chicago public healthcare system.

Results: Mean age of the patients was 49±11.

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Aim: Evaluate legacy effect on renal outcomes after the end of a multifactorial-multidisciplinary intervention in patients with advanced diabetic nephropathy (ADN trial) CKD 3-4.

Methods: A retrospective electronic review was conducted of 72 patients who completed the ADN trial ESRD-free with subsequent follow-up of two years or until ESRD development.

Results: At baseline, reflecting ADN trial end, 38 post-intervention and 34 post-control patients were similar except for lower HbA1c, SBP and age in the post-intervention group.

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Objective: To investigate the prevalence and predictors of hypertriglyceridemic acute pancreatitis (HTG-AP) in a multi-ethnic minority population.

Methods: A retrospective, cross-sectional study from 2003 to 2013 of 1,157 adults with a serum triglyceride (TG) level ≥1,000 mg/dL comparing baseline characteristics and risk factors between those with and without HTG-AP.

Results: Mean study population age was 49.

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African Americans experience poorer diabetes outcomes than non-Hispanic Whites. Few clinical trials of diabetes self-management interventions specifically target African Americans, perhaps due to well-documented barriers to recruitment in this population. This paper describes strategies used to successfully recruit 211 low-income African Americans from community clinics of a large, urban public hospital system to a randomized clinical trial of an 18-month diabetes self-management intervention.

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Aims: To evaluate efficacy of a multifactorial-multidisciplinary approach in delaying CKD 3-4 progression to ESRD.

Methods: Two-year proof-of-concept stratified randomized control trial conducted in an outpatient clinic of a large public hospital system. This intervention, led by a team of endocrinologists, nephrologists, nurse practitioners, and registered dietitians, integrated intensive diabetes-renal care with behavioral/dietary and pharmacological interventions.

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Background: Understanding diabetes-specific quality of life (DSQOL) is important to improving lives of people with type 2 diabetes mellitus (T2DM). Despite the prevalence of T2DM among African Americans, there is scant evidence about DSQOL in this population. This study aims to understand relationships between DSQOL and demographics, clinical markers, psychosocial factors, and stress in African Americans.

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Context: The efficacy/safety of combination oral agents in those with stable newly diagnosed type 2 diabetes (T2DM) with severe hyperglycemia is unknown.

Objective: The objective of the study was to assess glycemic and β-cell outcomes of two oral regimens.

Design: This was an open-label, randomized controlled trial with patients enrolled from 2011 through 2014 and followed up for 12 weeks.

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Much has been published on the characteristics of type 2 diabetes mellitus and its association with the epidemic of obesity. But relatively little is known about the incidence of lean diabetes, progression of disease and fate of the patients with low-normal body mass index (< 25). Studies in developing countries have shown that the clinical characteristics of these patients include history of childhood malnutrition, poor socioeconomic status, relatively early age of onset and absence of ketosis on withdrawal of insulin.

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The Lifestyle Improvement through Food and Exercise (LIFE) study is a community-based randomized-controlled trial to measure the effectiveness of a lifestyle intervention to improve glycemic control among African Americans with type 2 diabetes attending safety net clinics. The study enrolled African American adults with a diagnosis of type 2 diabetes and HbA1c ≥ 7.0 who had attended specific safety net community clinics in the prior year.

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