Deborah A Chyun

Faculty

Deborah A. Chyun headshot

Deborah A Chyun

Professor with Chair

1 212 998 5264

433 FIRST AVENUE
NEW YORK, NY 10010
United States

Deborah A Chyun's additional information

Dr. Chyun's expertise on cardiac-related outcomes, psychosocial and behavioral factors, quality of life in older adults with type 2 diabetes mellitus, and cardiovascular nursing and chronic disease epidemiology has provided a unique opportunity to expand the understanding of cardiovascular disease (CVD) in older adults through multiple studies. Findings have made a significant contribution to knowledge of cardiac autonomic neuropathy and asymptomatic heart disease, and have been incorporated into American Diabetes Association clinical practice recommendations. She has lectured and consulted nationally and internationally on topics related to type 2 diabetes and CVD. As an active member of the American Heart Association, Dr. Chyun has represented nursing on interdisciplinary committees focusing on prevention, epidemiology, diabetes, and older adults.

Global
Gerontology
Non-communicable disease

Publications

The Million Hearts initiative : Guidelines and best practices

Melnyk, B. M., Orsolini, L., Gawlik, K., Braun, L. T., Chyun, D., Conn, V. S., Dunbar-Jacob, J., Lewis, L. M., Melkus, G. D., Millan, A., Rice, V. H., Wilbur, J., Nowlin, S., & Olin, A. R. (2016). In Nurse Practitioner (Vols. 41, Issues 2, pp. 46-53). 10.1097/01.NPR.0000476372.04620.7a
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Million Hearts is a national initiative to improve the nation's cardiovascular health through evidence-based practices and prevention. This article reviews the ABCS of Million Hearts with an emphasis on NP-led care models. Recommendations for clinical practice, education, research, and health policy are highlighted.

The Million Hearts initiative : Guidelines and best practices

Melnyk, B. M., Orsolini, L., Gawlik, K., Braun, L. T., Chyun, D., Conn, V. S., Dunbar-Jacob, J., Lewis, L. M., D'Eramo Melkus, G., Millan, A., Rice, V. H., Wilbur, J., Nowlin, S., & Olin, A. R. (2016). In The Nurse practitioner (Vols. 41, Issues 2, pp. 46-53). 10.1097/01.NPR.0000480685.29208.52
Abstract
Abstract
Million Hearts is a national initiative to improve the nation's cardiovascular health through evidence-based practices and prevention. This article reviews the ABCS of Million Hearts with an emphasis on NP-led care models. Recommendations for clinical practice, education, research, and health policy are highlighted.

Recommendations for cardiovascular disease research with lesbian, gay and bisexual adults

Caceres, B. A., Brody, A. A., & Chyun, D. (2016). In Journal of Clinical Nursing (Vols. 25, Issue 23-24, pp. 3728-3742). 10.1111/jocn.13415
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Aims and objectives: The purpose of this paper is to provide recommendations to strengthen cardiovascular disease research with lesbian, gay and bisexual adults, and highlight implications for practice. Background: Lesbian, gay and bisexual individuals face significant discrimination that negatively impacts their health. Health disparities research in lesbian, gay and bisexual adults have focused on mental health, sexually transmitted infections and substance use. Although cardiovascular disease is the leading cause of death and many lesbian, gay and bisexual adults report increased risk factors for cardiovascular disease, there has been limited research in this area. Design: This paper is a critical review. Methods: A literature search was conducted that compared cardiovascular disease risk and/or prevalence between lesbian, gay and bisexual and heterosexual adults. Results: Measures to assess cardiovascular disease risk factors and diagnoses varied widely across the 31 included studies. There was a lack of standardisation in definitions used for alcohol consumption, illicit drug use, mental health and self-rated physical health. Most studies that reported body mass index relied on participant self-report. Few studies included measures of physical activity and diet and those that did lacked standardisation. Only seven studies used laboratory data to establish diagnosis of cardiovascular disease. Conclusions: This study is the first comprehensive review on this topic. In cardiovascular disease research with lesbian, gay and bisexual adults, there is a need for: (1) inclusion of stress as a risk factor for cardiovascular disease, (2) standardised measures, (3) objective measures for determining the presence of cardiovascular disease, (4) data from electronic health records to strengthen the study of cardiovascular disease in this population. Relevance to clinical practice: Strengthening cardiovascular disease research in lesbian, gay and bisexual adults is an important step in addressing health disparities in this population. Nurses and other healthcare professionals should assess sexual orientation in routine health assessments.

Response to Lindo, LePage, & Beason (2016) : "Should faculty assume first authorship on papers when students fail to draft papers from work they conducted during training?"

Chyun, D., & Henly, S. J. (2016). In Nursing research (Vols. 65, Issues 2, p. 96). 10.1097/NNR.0000000000000149
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Autonomic dysfunction independently predicts poor cardiovascular outcomes in asymptomatic individuals with type 2 diabetes in the DIAD study

Chyun, D., Wackers, F. J., Inzucchi, S. E., Jose, P., Weiss, C., Davey, -, Heller, G. V., Iskandrian, A. E., & Young, L. (2015). In SAGE Open Medicine.
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Autonomic dysfunction independently predicts poor cardiovascular outcomes in asymptomatic individuals with type 2 diabetes in the DIAD study

Chyun, D., Wackers, F. J., Inzucchi, S. E., Jose, P., Weiss, C., Davey, J. A., Heller, G. V., Iskandrian, A. E., & Young, L. H. (2015). In SAGE Open Medicine (Vols. 3). 10.1177/2050312114568476
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Objective: The primary aim of this secondary analysis was to determine whether cardiac autonomic neuropathy independently predicted adverse cardiac outcomes in asymptomatic individuals with type 2 diabetes. Additional aims include the determination of the correlation of standard autonomic testing measures and power spectral analysis of heart rate variability, and the association of diabetes-related and cardiac risk factors with cardiac autonomic neuropathy measures. Methods: Cardiac autonomic neuropathy was assessed at the study entry into the Detection of Ischemia in Asymptomatic Diabetics study, using autonomic heart rate and blood pressure testing, and power spectral analysis of heart rate variability. All participants were prospectively followed for the composite clinical outcome of cardiac death, acute coronary syndromes, heart failure, or coronary revascularization. Results: Over 5 years of follow-up, 94 of 1119 (8.4%) subjects developed symptomatic cardiac disease. In unadjusted bivariate analyses, abnormalities in several cardiac autonomic neuropathy tests, including lower Valsalva and Standing Heart Rate Ratios, higher resting Heart Rate, greater systolic blood pressure decrease on standing, and lower low-frequency power, were predictive of symptomatic disease. Independent predictors of poor cardiac outcome were a lower Valsalva Heart Rate Ratio, non-Black ethnicity, longer diabetes duration, higher glycated hemoglobin (HbA1c), insulin use, reported numbness in the extremities, higher pulse pressure, family history of coronary artery disease, and higher waist-to-hip ratio. Clinical factors independently associated with a lower Valsalva Heart Rate Ratio were insulin use, clinical proteinuria, higher pulse pressure, use of angiotensin-converting enzyme inhibitor and non-Black ethnicity. Conclusion: Cardiac autonomic neuropathy predicted adverse cardiac outcomes in asymptomatic type 2 diabetes without known cardiac disease. Clinical variables may help to identify patients who might have cardiac autonomic neuropathy and warrant consideration for autonomic testing.

Barriers to Referral for Elevated Blood Pressure in the Emergency Department and Differences Between Provider Type

Souffront, K., Chyun, D., & Kovner, C. T. (2015). In Journal of Clinical Hypertension (Vols. 17, Issues 3, pp. 207-214). 10.1111/jch.12468
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A multidisciplinary sample of emergency department providers across the United States (n=450) were surveyed to identify barriers to referral for elevated blood pressure (BP) in the emergency department and differences between provider type. Registered nurses reported less knowledge of stage I hypertension (P=.043) and prehypertension (P

Cardiovascular complications management

McCarthy, M. M., & Chyun, D. (2015). In M. Cypress & G. Spollet (Eds.), Nursing care for diabetes mellitus (3rd eds.). American Diabetes Association.
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New scholars writing for publication

Chyun, D., & Henly, S. J. (2015). In Nursing research (Vols. 64, Issues 4, pp. 231-234). 10.1097/NNR.0000000000000109
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Process evaluation of an exercise counseling intervention using motivational interviewing

McCarthy, M. M., Dickson, V. V., Katz, S. D., Sciacca, K., & Chyun, D. (2015). In Applied Nursing Research (Vols. 28, Issues 2, pp. 156-162). 10.1016/j.apnr.2014.09.006
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Aim: To describe the results of the process evaluation of an exercise counseling intervention using motivational interviewing (MI). Background: Exercise can safely be incorporated into heart failure self-care, but many lack access to cardiac rehabilitation. One alternative is to provide exercise counseling in the clinical setting. Methods: This process evaluation was conducted according to previously established guidelines for health promotion programs. This includes an assessment of recruitment and retention, implementation, and reach. Results: Desired number of subjects were recruited, but 25% dropped out during study. Good fidelity to the intervention was achieved; the use of MI was evaluated with improvement in adherence over time. Dose included initial session plus 12 weekly phone calls. Subjects varied in participation of daily diary usage. Setting was conducive to recruitment and data collection. Conclusions: Evaluating the process of an intervention provides valuable feedback on content, delivery and fidelity.