
Deborah A Chyun
Professor with Chair
dc116@nyu.edu
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.
-
-
GlobalGerontologyNon-communicable disease
-
-
Publications
Required reading: Secondary prevention of atherosclerotic cardiovascular disease in older adults
Chyun, D. (2013). American Heart Association Learning Library.Fluid Overload
Coviello, J., & Chyun, D. (2012). In M. Boltz, E. Capezuti, D. Zwicker, & T. Fulmer (Eds.), Evidence-based geriatric nursing protocols for best practice: Identifying and managing heart failure patients at risk for readmission (4th eds., 1–). Springer Publishing.Gender-based divergence of cardiovascular outcomes in asymptomatic patients with type 2 diabetes: Results from the DIAD study
AbstractTandon, S., Wackers, F. J., Inzucchi, S. E., Bansal, S., Staib, L. H., Chyun, D. A., Davey, J. A., & Young, L. H. (2012). Diabetes and Vascular Disease Research, 9(2), 124-130. 10.1177/1479164111431470AbstractGender differences in cardiovascular outcomes were compared in asymptomatic men and women with type 2 diabetes (T2DM) in the Detection of Ischemia in Asymptomatic Diabetics (DIAD) study. Of 1123 participants, 290 men and 271 women were randomised to screening with stress myocardial perfusion imaging (MPI); 311 men and 251 women wererandomised to no screening. Follow-up was 4.8±0.9 years for the occurrence of cardiac events (CE; cardiac death or non-fatal myocardial infarction). The frequency of abnormal screening was similar in men (24%) and women (19%), (p=0.2), although women trended to have smaller MPI abnormalities. CE rates were lower in women than men (1.7% vs. 3.8%, p=0.04). No CEs occurred in 17 high-risk (UKPDS risk engine) women, whereas 14 (11.2%) occurred in 125 highrisk men. Asymptomatic women with T2DM have significantly better cardiac outcomes than their male counterparts andrepresent a subgroup for which screening for coronary artery disease does not appear warranted.Barriers to Cardiac Rehabilitation in Women With Cardiovascular Disease:An Integrative Review
AbstractMcCarthy, M. M., Vaughan Dickson, V., & Chyun, D. (2011). Journal of Cardiovascular Nursing, 26(5), E1-E10. 10.1097/JCN.0b013e3181f877e9AbstractAlthough death rates from cardiovascular disease (CVD) have declined in recent years, it continues to be the leading cause of death for women in the United States. The risk factors for CVD are well established and include physical inactivity. According to the Centers for Disease Control, in 2008, 38% of women reported no physical activity. For many women who experience a cardiac event, their first opportunity to become physically active is through a formal cardiac rehabilitation (CR) program. Unfortunately, women often underutilize CR programs. The purpose of this integrative review was to examine the barriers to participation in a CR program among women with CVD.Five-year outcomes in high-risk participants in the Detection of Ischemia in Asymptomatic Diabetics (DIAD) study: A post hoc analysis
AbstractBansal, S., Wackers, F. J., Inzucchi, S. E., Chyun, D. A., Davey, J. A., Staib, L. H., & Young, L. H. (2011). Diabetes Care, 34(1), 204-209. 10.2337/dc10-1194AbstractOBJECTIVE - To estimate baseline cardiovascular risk of 1,123 participants in the Detection of Ischemia in Asymptomatic Diabetics (DIAD) study and to assess cardiac event rates and the effect of screening on outcomes in these higher-risk participants. RESEARCH DESIGN AND METHODS - Baseline cardiovascular risk was assessed using four established methods: Framingham score, UK Prospective Diabetes Study (UKPDS) risk engine, criteria of the French-Speaking Association for the Study of Diabetes and Metabolic Diseases, and the presence or absence of metabolic syndrome. Cardiac events (cardiac death or nonfatal myocardial infarction) were assessed during the 4.8-year follow-up in participants with intermediate/high cardiovascular risk. RESULTS - By various risk-stratification approaches, 53-75% of participants were defined as having intermediate or high cardiovascular risk. The prevalence of inducible ischemia on screening in these individuals ranged from 21 to 24%, similar to lower-risk participants (19-23%). Cardiac event rates were greater in intermediate-/high- risk versus low-risk groups, but this was only significant for the UKPDS risk engine (4.2 vs. 1.2%, P=0.002). The annual cardiac event rate was <1% in all risk groups, except in the high-risk UKPDS group (∼2% per year). In intermediate-/high-risk participants randomized to screening versus no screening, 4.8-year cardiac event rates were similar (2.5-4.8% vs. 3.1-3.7%). CONCLUSIONS - A substantial portion of the DIAD population was defined as having intermediate/high baseline cardiovascular risk. Nevertheless, their annual cardiac event rate was low and not altered by routine screening for inducible ischemia.A life course approach to cardiovascular disease prevention
AbstractHayman, L. L., Helden, L., Chyun, D. A., & Braun, L. T. (2011). Journal of Cardiovascular Nursing, 26(4), S22-S34. 10.1097/JCN.0b013e318213ef7fAbstractDuring the past 2 decades, life-course social-ecological frameworks have emerged across health, developmental, social, behavioral, and public health disciplines as useful models for explaining how health trajectories develop over an individual's lifetime and how this knowledge can guide and inform new approaches to clinical and public health practice, multilevel policies, and research. Viewed from this perspective, and with emphasis on global cardiovascular health promotion and prevention of cardiovascular disease (CVD), this article summarizes evidence on the early origins and progression of CVD processes across the life course of individuals and diverse populations. Current evidence-based guidelines for CVD prevention are summarized, and recommendations for future research are suggested.A life course approach to cardiovascular disease prevention
AbstractHayman, L. L., Helden, L., Chyun, D. A., & Braun, L. T. (2011). European Journal of Cardiovascular Nursing, 10, S20-S31. 10.1016/S1474-5151(11)00113-7AbstractDuring the past 2 decades, life-course social-ecological frameworks have emerged across health, developmental, social, behavioral, and public health disciplines as useful models for explaining how health trajectories develop over an individual's lifetime and how this knowledge can guide and inform new approaches to clinical and public health practice, multilevel policies, and research. Viewed from this perspective, and with emphasis on global cardiovascular health promotion and prevention of cardiovascular disease (CVD), this article summarizes evidence on the early origins and progression of CVD processes across the life course of individuals and diverse populations. Current evidence-based guidelines for CVD prevention are summarized, and recommendations for future research are suggested.Physiological and Behavioral Factors Related to Physical Activity in Black Women With Type 2 Diabetes Mellitus
AbstractAllen, N. A., Melkus, G. D., & Chyun, D. A. (2011). Journal of Transcultural Nursing, 22(4), 376-385. 10.1177/1043659611414143AbstractPurpose: To describe relationships among physical activity (PA), physiological factors, and psychological factors in Black women with type 2 diabetes mellitus (T2DM). Methods: A cross-sectional design was used (N = 109). Data were collected on PA (activity/inactivity, TV hours, bed confinement), physiology (blood pressure, lipids, hemoglobin A1c), psychology (anxiety, emotional distress, physical functioning, bodily pain, vitality), and health care provider (HCP) support. Results: Walking was the preferred PA; TV viewing averaged 3.7 hours/day, and 24% reported confinement to bed >1 week in the last year. Inactive women had greater physiological and psychological problems than active women. Women watching TV >2 hours/day had more physiological problems than women watching TV <2 hours/day. Women reporting >1 week of confinement to bed in the last year had more physiological and psychological problems than those confined to bed <1 week. Conclusions: PA interventions in Black women with T2DM should promote walking, address TV viewing time, incorporate HCP's role of PA counseling/support, and address several psychological factors.Coping as a mediator in the relationships of spiritual well-being to mental health in black women with type 2 diabetes
AbstractNewlin, K., Melkus, G. D., Peyrot, M., Koenig, H. G., Allard, E., & Chyun, D. (2010). International Journal of Psychiatry in Medicine, 40(4), 439-459. 10.2190/PM.40.4.gAbstractObjective: Examine coping as a mediator in the relationships of spiritual well-being to mental health in Black women with type 2 diabetes (T2DM). Methods: Using a cross-sectional design, data were collected from a convenience sample of 45 Black women with T2DM. Measures of coping strategies, spiritual well-being (religious and existential well-being), and mental health, as measured by diabetes-specific distress (DSED), were collected. Bivariate findings informed mediational, trivariate model development. Results: Religious well-being was significantly related to cognitive reframing (CR) coping strategies (p = 0.026) but not DSED (p = 0.751). Existential well-being was significantly related to CR (ß = 0.575, p < 0.001), direct assistance (DA) coping (ß = 0.368, p = 0.006) and DSED (ß = -0.338, p = 0.023). Although CR (ß = -0.305, p = 0.021) and DA (ß = -0.262, p = 0.041) had significant bivariate associations with DSED, the relationships were not significant when existential well-being was controlled. However, the relationship of existential well-being to DSED was mediated by specific CR and DA strategies that were associated with DSED to varying degrees -"I came up with a couple different solutions to the problem" (ß = -0.301, p = 0.049); "I came out of the experience better than I went in" (ß = -0.308, p = 0.061); and "I talked to someone who could do something concrete about the problem" (ß = -0.272, p = 0.078). Conclusion: Findings indicate that diabetes care address spiritual well-being, both its religious and existential components, in Black women with T2DM.The effect of a diabetes education, coping skills training, and care intervention on physiological and psychosocial outcomes in black women with type 2 diabetes
AbstractD’Eramo Melkus, G., Chyun, D., Vorderstrasse, A., Newlin, K., Jefferson, V., & Langerman, S. (2010). Biological Research for Nursing, 12(1), 7-19. 10.1177/1099800410369825AbstractAn 11-week culturally relevant group diabetes self-management training (DSMT), coping skills training (CST), and diabetes care intervention was compared to a 10-week usual diabetes education and diabetes care intervention on physiological and psychosocial outcomes in 109 Black women (aged 48 ± 10 years) with type 2 diabetes in primary care (PC). Strong time effects for hemoglobin A1c improvement were seen in both groups from baseline to 3 months and remained similar at 12 and 24 months (p <. 0001). Systolic blood pressure (p = .01) and low-density lipoprotein cholesterol levels (p = .05) improved in both groups from baseline to 24 months. Baseline quality of life ([QOL]; Medical Outcome Study Short Form-36) was low. Social function, role-emotional, and mental health domains increased initially in both groups then declined slightly, with less decline for the experimental group at 12 months. At 24 months, experimental group scores increased. General health (p = .002), vitality (p = .01), role-physical, and bodily pain (p = .02) domains increased in both groups over time. Perceived provider support for diet (p = .0001) and exercise (p = .0001) increased in both groups over time. Diabetes-related emotional distress decreased in the experimental compared to the control group (group × time, p = .01). Findings suggest that both methods of diabetes education combined with care can improve metabolic control, QOL, and perceptions of provider care. CST may further assist in long-term improvements in health outcomes. Behavioral interventions are needed in addition to routine diabetes care, particularly in PC.