Samaah Sullivan

ORCID: 0000-0001-9427-7235
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About
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Research Areas
  • Cardiac Health and Mental Health
  • Health disparities and outcomes
  • Heart Rate Variability and Autonomic Control
  • Cardiac Imaging and Diagnostics
  • Cardiovascular Health and Risk Factors
  • Stress Responses and Cortisol
  • Cardiovascular Health and Disease Prevention
  • Intensive Care Unit Cognitive Disorders
  • Obesity, Physical Activity, Diet
  • Health, psychology, and well-being
  • Cardiovascular Disease and Adiposity
  • Employment and Welfare Studies
  • Healthcare professionals’ stress and burnout
  • Urban Transport and Accessibility
  • Racial and Ethnic Identity Research
  • Blood Pressure and Hypertension Studies
  • Acute Myocardial Infarction Research
  • Resilience and Mental Health
  • Climate Change and Health Impacts
  • Cardiovascular Effects of Exercise
  • Urban, Neighborhood, and Segregation Studies
  • Cardiac Arrest and Resuscitation
  • Apelin-related biomedical research
  • Food Security and Health in Diverse Populations
  • Sleep and related disorders

The University of Texas Health Science Center at Houston
2022-2025

The University of Texas Southwestern Medical Center
2024-2025

Emory University
2012-2023

University of Texas Health Science Center at Dallas
2022-2023

University of Alabama at Birmingham
2022

Sullivan University
2022

Atlanta VA Medical Center
2022

AID Atlanta
2021

Bridge University
2019-2021

Louisiana State University Health Sciences Center New Orleans
2014-2017

Mental stress-induced myocardial ischemia (MSIMI) is frequent in patients with coronary artery disease and associated worse prognosis. Young women a previous infarction (MI), group unexplained higher mortality than men of comparable age, have shown elevated rates MSIMI, but the mechanisms are unknown.

10.1161/circulationaha.117.030849 article EN Circulation 2018-02-19

ABSTRACT Importance Prior pandemics have disparately affected socially vulnerable communities. Whether regional variations in social vulnerability to disasters influence COVID-19 outcomes and incidence the U.S. is unknown. Objective To examine association of Social Vulnerability Index (SVI), a percentile-based measure county-level disasters, its sub-components (socioeconomic status, household composition, minority housing type/transportation accessibility) with case fatality rate (CFR)...

10.1101/2020.04.10.20060962 preprint EN medRxiv (Cold Spring Harbor Laboratory) 2020-04-14

Background Higher symptom levels of a variety measures emotional distress have been associated with cardiovascular disease ( CVD ), especially among women. Here, our goal was to investigate the association between composite measure psychological and incident events. Methods Results In prospective cohort study, we assessed 662 individuals (28% women; 30% blacks) stable coronary artery disease. We used score derived through summation Z-transformed scales (depression, posttraumatic stress,...

10.1161/jaha.118.011866 article EN cc-by-nc-nd Journal of the American Heart Association 2019-05-06

<h3>Importance</h3> Mental stress–induced myocardial ischemia is a recognized phenomenon in patients with coronary heart disease (CHD), but its clinical significance the contemporary era has not been investigated. <h3>Objective</h3> To compare association of mental or conventional adverse cardiovascular events CHD. <h3>Design, Setting, and Participants</h3> Pooled analysis 2 prospective cohort studies stable CHD from university-based hospital network Atlanta, Georgia: Stress Ischemia...

10.1001/jama.2021.17649 article EN JAMA 2021-11-09

Background Food deserts ( FDs ), defined as low-income communities with limited access to healthy food, are a growing public health concern. We evaluated the impact of living in on incident cardiovascular events. Methods and Results recruited 4944 subjects (age 64±12, 64% male) undergoing cardiac catheterization into Emory Cardiovascular Biobank. Using US Department Agriculture definition FD , we determined whether their residential addresses had (1) poor (2) low income, or (3) both (= )....

10.1161/jaha.118.010694 article EN cc-by-nc-nd Journal of the American Heart Association 2019-02-11

Acute mental stress can result in transient endothelial dysfunction, but the prognostic relevance of this phenomenon is unknown.To determine association between stress-induced impairment endothelium-dependent relaxation as assessed by brachial artery flow-mediated vasodilation and adverse cardiovascular outcomes among individuals with stable coronary disease.This cohort study was conducted at a university-affiliated hospital network June 2011 August 2014. A disease were included. Data...

10.1001/jamacardio.2019.3252 article EN JAMA Cardiology 2019-09-11

Objective— To investigate sex-specific vascular mechanisms for mental stress-induced myocardial ischemia (MSIMI). Approach and Results— Baseline data from a prospective cohort study of 678 patients with coronary artery disease underwent perfusion imaging before during public speaking stressor. The rate-pressure product response was calculated as the difference between maximum value speech minus minimum rest. Peripheral vasoconstriction by peripheral arterial tonometry ratio pulse wave...

10.1161/atvbaha.117.309535 article EN Arteriosclerosis Thrombosis and Vascular Biology 2017-12-21

OBJECTIVE To investigate the separate and combined associations of obesity metabolic syndrome (MetS) with depression role inflammation. METHOD Depression was assessed Patient Health Questionnaire-9 (PHQ-9) defined a cutpoint ≥10. Obesity as body mass index (BMI) ≥30 kg/m2 from measured height weight. MetS based on American Heart Association consensus definition. Participants were divided into four groups: healthy normal weight (MHN), metabolically obese (MHO), unhealthy (MUN), (MUO)....

10.1037/hea0000764 article EN other-oa Health Psychology 2019-05-23

Psychological distress is a recognized risk factor in patients with coronary heart disease (CHD), but its clinical significance unclear. The purpose of this study was to determine if an index psychological independently associated adverse outcomes and significantly contributes prediction. Pooled analysis 2 prospective cohort studies stable CHD (N = 891). A score constructed using measures depression, anxiety, anger, perceived stress, post-traumatic stress disorder, measured at baseline....

10.1016/j.jacadv.2023.100794 article EN cc-by-nc-nd JACC Advances 2023-12-22

Microvascular measures of vascular dysfunction during acute mental stress may be important determinants major adverse cardiovascular events (MACE), especially among younger and middle-aged women survivors an myocardial infarction.

10.1161/atvbaha.122.318576 article EN Arteriosclerosis Thrombosis and Vascular Biology 2023-03-01

Background Young women with coronary artery disease ( CAD ), a group high psychosocial burden, were previously shown to have higher levels of interleukin-6 IL -6) compared men similar age. We sought examine -6 response acute stress in patients across sex and age, contrast results healthy controls other biomarkers known increase mental (monocyte chemoattractant protein-1 matrix metallopeptidase-9) limited stress-reactivity (high-sensitivity C-reactive protein). Methods Results Inflammatory...

10.1161/jaha.118.010329 article EN cc-by-nc-nd Journal of the American Heart Association 2018-12-04

Background Black patients tend to develop coronary artery disease at a younger age than other groups. Previous data on racial disparities in outcomes of myocardial infarction (MI) have been inconsistent and limited older populations. Our objective was investigate differences the outcome MI among young middle-aged role played by socioeconomic, psychosocial, clinical differences. Methods Results We studied 313 participants (65% non-Hispanic Black) <61 years old hospitalized for confirmed type...

10.1161/jaha.121.020828 article EN cc-by-nc-nd Journal of the American Heart Association 2021-08-25

Rationale: Excessive vasoconstriction in response to mental stress may be a potential mechanism by which acute psychological leads adverse cardiac events. Objectives: We investigated whether excessive digital during predicts cardiovascular outcomes among patients with coronary artery disease. Methods and Results: Five hundred forty-nine stable disease (age 63±9, 76% male, 29% black) underwent testing standardized public speaking stressor followed prospectively for end points. Digital pulse...

10.1161/circresaha.119.315005 article EN Circulation Research 2019-09-25

<h3>Importance</h3> Posttraumatic stress disorder (PTSD) is prevalent among patients who survived an acute coronary syndrome and associated with adverse outcomes, but the mechanisms underlying these associations are unclear. <h3>Objective</h3> To evaluate association of PTSD mental stress–induced myocardial ischemia individuals a infarction (MI). <h3>Design, Setting, Participants</h3> This cross-sectional study included 303 aged 18 to 60 years enrolled from university-affiliated network....

10.1001/jamanetworkopen.2020.2734 article EN cc-by-nc-nd JAMA Network Open 2020-04-14

Acute psychological stress may induce physiological changes predisposing individuals to adverse health outcomes through hemodynamic and vascular effects. We studied the association between aggregated stress-induced in function tests with cardiovascular patients coronary artery disease, after adjusting for sociodemographic clinical factors. Individuals stable disease from 2 prospective cohort studies were studied. Hemodynamic reactivity, endothelial function, vasoconstriction during mental...

10.1161/jaha.124.034683 article EN cc-by-nc-nd Journal of the American Heart Association 2025-01-23

With the rise of social media and potential for ethnic discrimination on these platforms, this study examined relationship between depressive symptoms, discrimination, ‘powerful others,’ emotional self-efficacy with a convenience sample 628 Hispanic emerging adult college students from Florida ( n = 401) Texas 227). Results hierarchical multiple regression model indicate that higher is associated greater symptoms. Moderation analyses revealed perception others’ strengthened association These...

10.1177/21676968251322817 article EN Emerging Adulthood 2025-02-26
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