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

Appealing the editor's decision: When and how

Chyun, D. A., Sullivan, M. C., Vessey, J. A., & Henly, S. J. (2017). Nursing Research, 66(1), 1. 10.1097/NNR.0000000000000198

Health research capacity building in Georgia: a case-based needs assessment

Squires, A., Chitashvili, T., Djbouti, M., Ridge, L., & Chyun, D. (2017). Public Health, 147, 1-7. 10.1016/j.puhe.2017.01.024
Abstract
Abstract
Objectives Research capacity building in the health sciences in low- and middle-income countries has typically focused on bench-science capacity, but research examining health service delivery and health workforce is equally necessary to determine the best ways to deliver care. The Republic of Georgia, formerly a part of the Soviet Union, has multiple issues within its healthcare system that would benefit from expended research capacity, but the current research environment needs to be explored prior to examining research-focused activities. The purpose of this project was to conduct a needs assessment focused on developing research capacity in the Republic of Georgia with an emphasis on workforce and network development. Study design A case study approach guided by a needs assessment format. Methods We conducted in-country, informal, semi-structured interviews in English with key informants and focus groups with faculty, students, and representatives of local non-governmental organizations. Purposive and snowball sampling approaches were used to recruit participants, with key informant interviews scheduled prior to arrival in country. Documents relevant to research capacity building were also included. Interview results were coded via content analysis. Final results were organized into a SWOT (strengths, weaknesses, opportunities, threat) analysis format, with the report shared with participants. Results There is widespread interest among students and faculty in Georgia around building research capacity. Lack of funding was identified by many informants as a barrier to research. Many critical research skills, such as proposal development, qualitative research skills, and statistical analysis, were reported as very limited. Participants expressed concerns about the ethics of research, with some suggesting that research is undertaken to punish or ‘expose’ subjects. However, students and faculty are highly motivated to improve their skills, are open to a variety of learning modalities, and have research priorities aligned with Georgian health needs. Conclusions This study's findings indicate that while the Georgian research infrastructure needs further development, Georgian students and faculty are eager to supplement its gaps by improving their own skills. These findings are consistent with those seen in other developing country contexts.

Physical inactivity and cardiac events: An analysis of the Detection of Ischemia in Asymptomatic Diabetics (DIAD) study

McCarthy, M. M., Wackers, F. J., Davey, J., & Chyun, D. A. (2017). Journal of Clinical and Translational Endocrinology, 9, 8-14. 10.1016/j.jcte.2017.05.005
Abstract
Abstract
Aims Diabetes affects 29 million adults, and the majority have type 2 diabetes (T2D). Coronary artery disease (CAD) is the leading cause of death, and physical inactivity is an important risk factor. The aims of this study were to examine the contribution of physical inactivity to CAD events, and to identify the independent predictors of CAD events in a sample of older adults with T2D. Method A secondary data analysis of the prospective randomized screening trial “Detection of Ischemia in Asymptomatic Diabetics (DIAD)” study. Cox proportional hazard modeling was used to examine the outcome of CAD events. Results During the five years of follow-up, the CAD event rate for all subjects (n = 1119) was 8.4% (n = 94). In unadjusted analysis, physical inactivity was significantly associated with development of a CAD event. In the final model, nine baseline variables were significant predictors (p < 0.05) of a CAD: physical inactivity, race, diabetes duration, hemoglobin A1c (HbA1c), peripheral numbness, insulin use, increasing waist-to-hip ratio, family history of premature CAD, and a higher pulse pressure. In men only, there were five predictors (p < 0.05) of a CAD event: diabetes duration, peripheral numbness, HbA1c, increasing waist-to-hip ratio, and higher pulse pressure. The final model in women included three independent predictors (p < 0.05) of a CAD event: diabetes duration, a family history of premature CAD, and higher pulse pressure. Conclusion Several variables predicted CAD events in this sample of older adults with T2D. Understanding baseline characteristics that heighten risk may assist providers in intervening early to prevent its occurrence.

A systematic review of cardiovascular disease in sexual minorities

Caceres, B. A., Brody, A., Luscombe, R. E., Primiano, J. E., Marusca, P., Sitts, E. M., & Chyun, D. (2017). American Journal of Public Health, 107(4), e13-e21. 10.2105/AJPH.2016.303630
Abstract
Abstract
Background: Mental health and HIV disparities are well documented among sexual minorities, but there is a dearth of research on other chronic conditions. Cardiovascular disease remains the leading cause of death worldwide. Although sexual minorities have high rates of several modifiable risk factors for cardiovascular disease (including stress, tobacco use, and alcohol consumption), there is a paucity of research in this area. Objectives: In this systematic review, we synthesized and critiqued the existing evidence on cardiovascular disease among sexual minority adults. Search Methods: We conducted a thorough literature search of 6 electronic databases for studies published between January 1985 and December 2015 that compared cardiovascular disease risk or prevalence between sexual minority and heterosexual adults. Selection Criteria: We included peer-reviewed English-language studies that compared cardiovascular disease risk or diagnoses between sexual minority and heterosexual individuals older than 18 years. We excluded reviews, case studies, and gray literature. A total of 31 studies met inclusion criteria. Data Collection and Analysis: At least 2 authors independently abstracted data from each study. We performed quality assessment of retrieved studies using the Crowe Critical Appraisal Tool. Main Results: Sexual minority women exhibited greater cardiovascular disease risk related to tobacco use, alcohol consumption, illicit drug use, poor mental health, and body mass index, whereas sexual minority men experienced excess risk related to tobacco use, illicit drug use, and poor mental health. We identified several limitations in the extant literature. The majority of included studies were crosssectional analyses that used self-reported measures of cardiovascular disease. Even though we observed elevated cardiovascular disease risk, we found few differences in cardiovascular disease diagnoses (including hypertension, diabetes, and high cholesterol). Overall, 23 of the 26 studies that examined cardiovascular disease diagnoses used subjective measures. Only 7 studies used a combination of biomarkers and self-report measures to establish cardiovascular disease risk and diagnoses. Authors' Conclusions: Social conditions appear to exert a negative effect on cardiovascular disease risk among sexual minorities. Although we found few differences in cardiovascular disease diagnoses, we identified an elevated risk for cardiovascular disease in both sexual minority men and women. There is a need for research that incorporates subjective and objective measures of cardiovascular disease risk. Public Health Implications: Cardiovascular disease is a major health concern for clinicians, public health practitioners, and policymakers. This systematic review supports the need for culturally appropriate interventions that address cardiovascular disease risk in sexual minority adults. ((The full article is available online.

An exercise counseling intervention in minority adults with heart failure

McCarthy, M. M., Dickson, V. V., Katz, S. D., & Chyun, D. A. (2016). Rehabilitation Nursing, 42(3), 146-156. 10.1002/rnj.265
Abstract
Abstract
Purpose: The primary aimof this study was to assess the feasibility of an exercise counseling intervention for adults of diverse race/ ethnicity with heart failure (HF) and to assess its potential for improving overall physical activity, functional capacity, and HF self-care. Design: This study was a quasi-experimental, prospective, longitudinal cohort design. Methods: Twenty adults were enrolled and completed the 6-minute walk and standardized instruments, followed by exercise counseling using motivational interviewing. Each received an accelerometer, hand weights, and a diary to record self-care behaviors. Participants were followed via phone for 12 weeks to collect step-counts, review symptoms, and plan the following week's step goal. Findings: Results indicate that this interventionwas feasible formost participants and resulted in improvements in physical activity, functional capacity, and self-care behaviors. Conclusion/Clinical Relevance: Brief exercise counseling may be an appropriate option to improve outcomes for stable patients with HF and may be tailored to fit different settings.

Knowledge Gaps in Cardiovascular Care of Older Adults: A Scientific Statement from the American Heart Association, American College of Cardiology, and American Geriatrics Society: Executive Summary

Rich, M. W., Chyun, D. A., Skolnick, A. H., Alexander, K. P., Forman, D. E., Kitzman, D. W., Maurer, M. S., McClurken, J. B., Resnick, B. M., Shen, W. K., & Tirschwell, D. L. (2016). Journal of the American Geriatrics Society, 64(11), 2185-2192. 10.1111/jgs.14576
Abstract
Abstract
The incidence and prevalence of most cardiovascular disorders increase with age, and cardiovascular disease (CVD) is the leading cause of death and major disability in adults aged 75 and older. Despite the effect of CVD on quality of life, morbidity, and mortality in older adults, individuals aged 75 and older have been markedly underrepresented in most major cardiovascular trials, and virtually all trials have excluded older adults with complex comorbidities, significant physical or cognitive disabilities, frailty, or residence in nursing homes and assisted living facilities. As a result, current guidelines are unable to provide evidence-based recommendations for diagnosis and treatment of older adults typical of those encountered in routine clinical practice. The objectives of this scientific statement are to summarize current guideline recommendations as they apply to older adults, identify critical gaps in knowledge that preclude informed evidence-based decision-making, and recommend future research to close existing knowledge gaps. To achieve these objectives, a detailed review was conducted of current American College of Cardiology/American Heart Association (ACC/AHA) and American Stroke Association (ASA) guidelines to identify content and recommendations that explicitly targeted older adults. A pervasive lack of evidence to guide clinical decision-making in older adults with CVD was found, as well as a paucity of data on the effect of diagnostic and therapeutic interventions on outcomes that are particularly important to older adults, such as quality of life, physical function, and maintenance of independence. Accordingly, there is a critical need for a multitude of large population-based studies and clinical trials that include a broad spectrum of older adults representative of those seen in clinical practice and that incorporate relevant outcomes important to older adults in the study design. The results of these studies will provide the foundation for future evidence-based guidelines applicable to older adults and enhance person-centered care of older individuals with CVD in the United States and around the world.

Knowledge gaps in cardiovascular care of the older adult population

Rich, M. W., Chyun, D. A., Skolnick, A. H., Alexander, K. P., Forman, D. E., Kitzman, D. W., Maurer, M. S., Mcclurken, J. B., Resnick, B. M., Shen, W. K., & Tirschwell, D. L. (2016). Circulation, 133(21), 2103-2122. 10.1161/CIR.0000000000000380
Abstract
Abstract
The incidence and prevalence of most cardiovascular disorders increase with age, and cardiovascular disease is the leading cause of death and major disability in adults ≥75 years of age; however, despite the large impact of cardiovascular disease on quality of life, morbidity, and mortality in older adults, patients aged ≥75 years have been markedly underrepresented in most major cardiovascular trials, and virtually all trials have excluded older patients with complex comorbidities, significant physical or cognitive disabilities, frailty, or residence in a nursing home or assisted living facility. As a result, current guidelines are unable to provide evidence-based recommendations for diagnosis and treatment of older patients typical of those encountered in routine clinical practice. The objectives of this scientific statement are to summarize current guideline recommendations as they apply to older adults, identify critical gaps in knowledge that preclude informed evidence-based decision making, and recommend future research to close existing knowledge gaps. To achieve these objectives, we conducted a detailed review of current American College of Cardiology/American Heart Association and American Stroke Association guidelines to identify content and recommendations that explicitly targeted older patients. We found that there is a pervasive lack of evidence to guide clinical decision making in older patients with cardiovascular disease, as well as a paucity of data on the impact of diagnostic and therapeutic interventions on key outcomes that are particularly important to older patients, such as quality of life, physical function, and maintenance of independence. Accordingly, there is a critical need for a multitude of large population-based studies and clinical trials that include a broad spectrum of older patients representative of those seen in clinical practice and that incorporate relevant outcomes important to older patients in the study design. The results of these studies will provide the foundation for future evidence-based guidelines applicable to older patients, thereby enhancing patient-centered evidence-based care of older people with cardiovascular disease in the United States and around the world.

Knowledge gaps in cardiovascular care of the older adult population: A scientific statement from the American Heart Association, American College of Cardiology, and American Geriatrics Society

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Abstract
Abstract
The incidence and prevalence of most cardiovascular disorders increase with age, and cardiovascular disease is the leading cause of death and major disability in adults ≥75 years of age; however, despite the large impact of cardiovascular disease on quality of life, morbidity, and mortality in older adults, patients aged ≥75 years have been markedly underrepresented in most major cardiovascular trials, and virtually all trials have excluded older patients with complex comorbidities, significant physical or cognitive disabilities, frailty, or residence in a nursing home or assisted living facility. As a result, current guidelines are unable to provide evidence-based recommendations for diagnosis and treatment of older patients typical of those encountered in routine clinical practice. The objectives of this scientific statement are to summarize current guideline recommendations as they apply to older adults, identify critical gaps in knowledge that preclude informed evidence-based decision making, and recommend future research to close existing knowledge gaps. To achieve these objectives, we conducted a detailed review of current American College of Cardiology/American Heart Association and American Stroke Association guidelines to identify content and recommendations that explicitly targeted older patients. We found that there is a pervasive lack of evidence to guide clinical decision making in older patients with cardiovascular disease, as well as a paucity of data on the impact of diagnostic and therapeutic interventions on key outcomes that are particularly important to older patients, such as quality of life, physical function, and maintenance of independence. Accordingly, there is a critical need for a multitude of large population-based studies and clinical trials that include a broad spectrum of older patients representative of those seen in clinical practice and that incorporate relevant outcomes important to older patients in the study design. The results of these studies will provide the foundation for future evidence-based guidelines applicable to older patients, thereby enhancing patient-centered evidence-based care of older people with cardiovascular disease in the United States and around the world.

Low literacy self-care management patient education for a multi-lingual heart failure population: Results of a pilot study

Dickson, V. V., Chyun, D., Caridi, C., Gregory, J. K., & Katz, S. (2016). Applied Nursing Research, 29, 122-124. 10.1016/j.apnr.2015.06.002
Abstract
Abstract
Purpose: The purpose of this pilot study was to test the impact of language-free, low literacy self-care management patient education materials in an ethnically diverse multilingual heart failure (HF) population. Methods: A one group pre-test-post-test design measured changes in self-care, knowledge and health-related quality of life (HRQL) after a 1 month intervention using language-free, low literacy self-care management patient education materials and delivered by a health educator. Results: The ethnically diverse sample (n = 21) was predominately male (72%), 48% Black, 42% Hispanic, and 28% marginal/inadequate literacy. There were significant improvements in self-care and knowledge but not HRQL. Conclusions: Language-free, low literacy self-care patient education may facilitate improved self-care and knowledge in diverse populations who are at risk for poor HF outcomes.

The Million Hearts initiative: Guidelines and best practices

Melnyk, B. M., Orsolini, L., Gawlik, K., Braun, L. T., Chyun, D. A., 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). Nurse Practitioner, 41(2), 46-53. 10.1097/01.NPR.0000476372.04620.7a
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.