Associations Between Psychological Factors and Adherence to Health Behaviors After Percutaneous Coronary Intervention: The Role of Cardiac Rehabilitation.

BACKGROUND: Cardiac rehabilitation (CR) participation after percutaneous coronary intervention (PCI) for coronary heart disease lowers the disease burden and risk of recurrent cardiac events. Examining psychological factors may improve post-PCI health behavior adherence. PURPOSE: To determine whether psychological factors are associated with post-PCI health behavior adherence, and the role of CR participation. METHODS: Data from 1,682 patients (22.1% female, Mage = 64.0, SDage = 10.5 years) from the THORESCI cohort were included. Adjusted mixed models were used to examine associations between psychological factors and the 1-year course of health behaviors, using interactions to test for moderation by CR participation. RESULTS: Psychological factors were associated with the trajectories of adherence to medical advice, exercise, and diet. The strongest association found was between optimism and the trajectory of dietary adherence (B: = -0.09, p = .026). Patients with high optimism levels had a worse trajectory of dietary adherence compared to patients with low to middle optimism levels. Participation in CR buffered the associations of high anxiety, pessimism, and low to middle resilience, but strengthened the associations of high stress in the past year with the probability of smoking. CONCLUSIONS: Psychological factors are associated with post-PCI health behavior adherence, but the pattern of associations is complex. Patients with high levels of anxiety, pessimism, and low to middle resilience levels may disproportionately benefit from CR. Cardiac rehabilitation programs could consider this to improve post-PCI health behavior adherence. CLINICAL TRIALS REGISTRATION #: NCT02621216.

For patients with coronary heart disease who have undergone percutaneous coronary intervention (PCI), participating in cardiac rehabilitation (CR) reduces the disease burden and the risk of future cardiac events. However, adherence to the health behaviors targeted in CR could be improved. Using data from 1,682 patients included in the THORESCI study, we explored whether psychological factors could predict health behavior adherence and the role of participation in CR. Results revealed that psychological factors were linked to adherence to medical advice, exercise, and diet. Overall, patients with low to moderate optimism levels exhibited more favorable changes in healthy dietary habits than patients with high levels of optimism. Participation in CR made the link between high anxiety, pessimism, low to moderate resilience, and lower adherence to health behaviors less strong. Cardiac rehabilitation programs could use these results to enhance the health behavior adherence of patients who have undergone PCI.

Sex and Gender Differences in Psychosocial Risk Profiles Among Patients with Coronary Heart Disease - the THORESCI-Gender Study.

BACKGROUND: Psychosocial factors tend to cluster and exhibit differences associated with sex assigned at birth. Gender disparities, though, remain uncharted so far. The current study aimed to first explore the clustering of eight established psychosocial risk factors among patients with coronary heart disease (CHD), followed by examining how sex and gender differences characterize these psychosocial risk profiles, while adjusting for the effect of age. METHOD: In total, 532 patients with CHD (Mage = 68.2 ± 8.9; 84% male) completed the comprehensive psychosocial screener and questionnaires to gauge gender identity, traits, and sociocultural norm scores. A three-step latent profile analysis (LPA) was performed to identify latent profiles and their correlates. RESULTS: LPA revealed six psychosocial risk profiles: (1) somewhat distressed overall (32%); (2) low distress (27%); (3) anger, hostility, and Type D (15%); (4) emotional distress and trauma (11%); (5) anxiety (9%); and (6) high overall distress (7%). Masculine traits and older age increased the odds to belong to the low distress profile (#2), while feminine traits and a feminine gender norm score increased the chance to belong to profiles with moderate to high distress. The effects of gender identity and feminine traits were sex dependent. CONCLUSION: The current study's findings explain heterogeneity among patients with CHD by considering the joint occurrence of psychosocial risk factors, and the role of sex, age, and gender within those profiles. Being more sensitive to the roles that sex, gender, and an integrated set of risk factors play may ultimately improve treatment and adherence.

The importance, consequences and treatment of psychosocial risk factors in heart disease: less conversation, more action!

Psychosocial factors play a significant role in the incidence and prognosis of cardiovascular disease with a rapidly increasing body of knowledge, as acknowledged by their inclusion in the European Society of Cardiology cardiovascular prevention guideline since 2012. Nevertheless, psychosocial risk is not consistently assessed, acknowledged and treated in daily clinical practice. Therefore, adopting a multidimensional approach that encompasses biological, psychological, and social factors is crucial for understanding the dynamic nature of cardiovascular health and disease, delivering patient-centred care, and developing effective interventions to ultimately enhance health and satisfaction with contemporary medicine and care. The current review summarises the state-of-the-art evidence for screening and treating psychological risk factors in coronary heart disease, heart failure, and atrial fibrillation in the context of cardiac rehabilitation, along with accompanying recommendations. The limited adoption of routine screening, despite longstanding recommendations, highlights the importance of prioritising the implementation and expansion of routine screening in primary and secondary prevention. To advance psychosocial treatment, a standardised and personalised approach including comprehensive education, physical exercise, and psychosocial support with a focus on patient-reported outcomes is crucial. Treating heart and mind together has the potential to decrease psychosocial risk while enhancing the prognosis and quality of life, therefore delivering true patient-centred care.

A Network Analysis of Cardiovascular Risk Factors in Patients With Heart Disease: The Role of Socioeconomic Status and Sex.

OBJECTIVE: Diverse risk factors influence the development and prognosis of coronary heart disease (CHD) independently and mutually. Low socioeconomic status (SES) seems to exacerbate these risk factors' influences. In addition, sex differences have been identified for individual risk factors. Network analysis could provide in-depth insight into the interrelatedness of the risk factors, their predictability, and the moderating role of sex, to ultimately contribute to more refinement in prevention and cardiac rehabilitation. METHODS: A total of 1682 participants (78% male; mean [standard deviation] age = 69.2 [10.6] years) with CHD completed questionnaires on psychosocial factors and health behaviors. Cardiometabolic data were retrieved through medical records. An SES index was created based on self-reported occupation, education, and area (i.e., postal code)-based median family income. Using R, we conducted a mixed graphical model network analysis on all risk factors combined with and without the moderating role of sex. RESULTS: SES belonged to the more influential risk factors with moderate to high levels of expected influence and degree centrality, indicating that it plays a considerable role in the risk factor network. When considering the moderating role of sex, relationships between SES and most risk factors were found to be stronger for women ( b = 0.06-0.48). CONCLUSIONS: The current study provided an insight into an interrelated network of psychosocial and medical risk factors among CHD patients. With SES belonging to the more influential risk factors and female sex influencing the strength of all the SES-risk factor relationships, cardiac rehabilitation and prevention techniques could be more refined by accounting for both influences.

Type D Personality as a Risk Factor for Adverse Outcome in Patients With Cardiovascular Disease: An Individual Patient-Data Meta-analysis.

OBJECTIVE: Type D personality, a joint tendency toward negative affectivity and social inhibition, has been linked to adverse events in patients with heart disease, although with inconsistent findings. Here, we apply an individual patient-data meta-analysis to data from 19 prospective cohort studies ( N = 11,151) to investigate the prediction of adverse outcomes by type D personality in patients with acquired cardiovascular disease. METHOD: For each outcome (all-cause mortality, cardiac mortality, myocardial infarction, coronary artery bypass grafting, percutaneous coronary intervention, major adverse cardiac event, any adverse event), we estimated type D's prognostic influence and the moderation by age, sex, and disease type. RESULTS: In patients with cardiovascular disease, evidence for a type D effect in terms of the Bayes factor (BF) was strong for major adverse cardiac event (BF = 42.5; odds ratio [OR] = 1.14) and any adverse event (BF = 129.4; OR = 1.15). Evidence for the null hypothesis was found for all-cause mortality (BF = 45.9; OR = 1.03), cardiac mortality (BF = 23.7; OR = 0.99), and myocardial infarction (BF = 16.9; OR = 1.12), suggesting that type D had no effect on these outcomes. This evidence was similar in the subset of patients with coronary artery disease (CAD), but inconclusive for patients with heart failure (HF). Positive effects were found for negative affectivity on cardiac and all-cause mortality, with the latter being more pronounced in male than female patients. CONCLUSION: Across 19 prospective cohort studies, type D predicts adverse events in patients with CAD, whereas evidence in patients with HF was inconclusive. In both patients with CAD and HF, we found evidence for a null effect of type D on cardiac and all-cause mortality.

Dairy Product Consumption and Incident Prediabetes in the Australian Diabetes, Obesity, and Lifestyle Study With 12 Years of Follow-Up.

BACKGROUND: Investigating modifiable risk factors for the early stages of the development of type 2 diabetes is essential for effective prevention. Some studies show protective associations between dairy and prediabetes; however, associations are heterogeneous by the type and fat content of dairy foods. OBJECTIVE: To examine the relationship between the consumption of dairy, including different types of dairy products and risk of prediabetes. METHODS: The study included 4891 participants with normal glucose tolerance (aged 49.0 ± 12.3 y, 57% female) of the Australian Diabetes, Obesity, and Lifestyle (AusDiab) study, a longitudinal population-based study. Dairy intake was measured at baseline using a food frequency questionnaire. Prediabetes at the 5-y and 12-y follow-ups was defined according to the WHO criteria as fasting plasma glucose levels of 110-125 mg/dL or 2-h plasma glucose levels of 140-199 mg/dL. Associations were analyzed using Poisson regression, adjusted for social demographics, lifestyle behaviors, a family history of diabetes, and food group intake. RESULTS: In total, 765 (15.6%) incident cases of prediabetes were observed. The mean intake of dairy foods was 2.4 ± 1.2 servings/d, mostly consisting of low-fat milk (0.70 ± 0.78 servings/d) and high-fat milk (0.47 ± 0.72 servings/d). A higher intake of high-fat dairy (RRservings/d: 0.92; 95% CI: 0.85, 1.00), high-fat milk (0.89; 95% CI: 0.80, 0.99), and total cheese (0.74; 95% CI: 0.56, 0.96) was associated with a lower risk of prediabetes. Low-fat milk intake was associated nonlinearly with prediabetes risk. Low-fat dairy foods, total milk, yogurt, low-fat cheese, and ice cream were not associated with prediabetes risk. CONCLUSION: In this large Australian cohort, protective associations were found for high-fat dairy types, whereas neutral associations were seen for low-fat dairy types. Studies with more detail on sugar content of types of dairy foods and products eaten with dairy foods (e.g., cereals or jam), and studies into potential causal mechanisms of the health effects of dairy intake are required.

Validity of a German Comprehensive Psychosocial Screening Instrument based on the ESC Cardiovascular Prevention Guidelines.

Background: Following guidelines for cardiovascular disease prevention of the European Society for Cardiology (ESC), the current study validated the German Comprehensive Psychosocial Screening Instrument in participants who underwent coronary angiography. Methods: 314 participants (Mage = 69.7 ± 12.0; 69 % male) completed the German Comprehensive Psychosocial Screening Instrument and validated comparison scales to measure depression (PHQ-9), anxiety (GAD-7), Type D personality (DS14), work stress (ERI), family stress (SMSS), trauma (PC-PTSD), and anger and hostility (Z-scale of MMPI-2). Results: Confirmatory factor analysis (CFA) confirmed that the psychosocial risk factors were separate entities rather than a signs or symptoms of a single broad indication of distress (CFI = .872, RMSEA = .056, SRMR = .058). Intraclass coefficients (ICC), kappa and diagnostic accuracy indicators (receiver operator characteristic [ROC] curves, sensitivity, specificity, and the positive and negative predictive values [PPV; NPV]) indicated that most screener scales were sufficient to good. We also compared patients with established coronary heart disease (CHD; n = 213) to those with no current CHD (n = 100) and found overall similar results. Discussion: The German version of the Comprehensive Psychosocial Screening Instrument has an acceptable performance. Aside from minor improvements, the screening instrument could be implemented in the cardiological practice to screen patients on multidimensional psychosocial risk.

Dairy product consumption and incident prediabetes in Dutch middle-aged adults: the Hoorn Studies prospective cohort.

PURPOSE: Our aim was to investigate prospective associations of consumption of total dairy and dairy types with incident prediabetes in a Dutch population-based study. METHODS: Two enrolment waves of the Hoorn Studies were harmonized, resulting in an analytic sample of 2262 participants without (pre-) diabetes at enrolment (mean age 56 ± 7.3 years; 50% male). Baseline dietary intake was assessed by validated food frequency questionnaires. Relative risks (RRs) were calculated between dairy, fermented dairy, milk, yogurt (all total/high/low fat), cream and ice cream and prediabetes. Additionally, substituting one serving/day of dairy types associated with prediabetes with alternative dairy types was analysed. RESULTS: During a mean 6.4 ± 0.7 years of follow-up, 810 participants (35.9%) developed prediabetes. High fat fermented dairy, cheese and high fat cheese were associated with a 17% (RR 0.83, 95% CI 0.69-0.99, ptrend = 0.04), 14% (RR 0.86, 95% CI 0.73-1.02, ptrend = 0.04) and 21% (RR 0.79, 95% CI 0.66-0.94, ptrend = 0.01) lower risk of incident prediabetes, respectively, in top compared to bottom quartiles, after adjustment for confounders. High fat cheese consumption was continuously associated with lower prediabetes risk (RRservings/day 0.94, 95% CI 0.88-1.00, p = 0.04). Total dairy and other dairy types were not associated with prediabetes risk in adjusted models, irrespective of fat content (RR ~ 1). Replacing high fat cheese with alternative dairy types was not associated with prediabetes risk. CONCLUSION: The highest intake of high fat fermented dairy, cheese and high fat cheese were associated with a lower risk of prediabetes, whereas other dairy types were not associated. Cheese seems to be inversely associated with type 2 diabetes risk, despite high levels of saturated fatty acids and sodium.

Individual Differences in Cross-System Physiological Activity at Rest and in Response to Acute Social Stress.

OBJECTIVE: Individual differences in long-term cardiovascular disease risk are related to physiological responses to psychological stress. However, little is known about specific physiological response profiles in young adults that may set the stage for long-term increased cardiovascular disease risk. We investigated individual differences in profiles of resting cardiovascular physiology and stress reactivity, combining parasympathetic, sympathetic, and hemodynamic measures. METHODS: Participants (n = 744, 71% women, mean [standard deviation] age = 20.1 [2.4] years) underwent the Trier Social Stress Test, while blood pressure (systolic blood pressure, diastolic blood pressure), electrocardiograms (interbeat interval), and impedance cardiograms (preejection period, left ventricular ejection time) were recorded. Respiratory sinus arrhythmia was derived from the combination of the electrocardiogram and the impedance cardiogram. A three-step latent profile analysis (LPA) was performed on resting and reactivity values to derive clusters of individual physiological profiles. We also explored demographic and health behavioral correlates of the observed latent clusters. RESULTS: For resting physiology, LPA revealed five different resting physiology profiles, which were related to sex, usual physical activity levels, and body mass index. Five cardiovascular stress reactivity profiles were identified: a reciprocal/moderate stress response (Cr1; 29%), and clusters characterized by high blood pressure reactivity (Cr2: 22%), high vagal withdrawal (Cr3; 22%), autonomic coactivation (parasympathetic nervous system and sympathetic nervous system; Cr4; 13%), and overall high reactivity (Cr5; 12%). Men were more likely to belong to the high reactivity (Cr5) cluster, whereas women were more likely to have autonomic coactivation (Cr4). CONCLUSIONS: We identified five cardiovascular physiological reactivity profiles, with individuals displaying generalized hyperreactivity, predominant vagal withdrawal, autonomic coactivation, or blood pressure-specific hyperreactivity. Longitudinal studies are needed to determine whether these profiles are useful in early detection of individuals at high risk for cardiovascular disease.

The Heritability of Type D Personality by an Extended Twin-Pedigree Analysis in the Netherlands Twin Register.

Type D (Distressed) personality combines negative affectivity (NA) and social inhibition (SI) and is associated with an increased risk of cardiovascular disease. We aimed to (1) validate a new proxy based on the Achenbach System of Empirically Based Assessment (ASEBA) for Type D personality and its NA and SI subcomponents and (2) estimate the heritability of the Type D proxy in an extended twin-pedigree design in the Netherlands Twin Register (NTR). Proxies for the dichotomous Type D classification, and continuous NA, SI, and NAxSI (the continuous measure of Type D) scales were created based on 12 ASEBA items for 30,433 NTR participants (16,449 twins and 13,984 relatives from 11,106 pedigrees) and sources of variation were analyzed in the 'Mendel' software package. We estimated additive and non-additive genetic variance components, shared household and unique environmental variance components and ran bivariate models to estimate the genetic and non-genetic covariance between NA and SI. The Type D proxy showed good reliability and construct validity. The best fitting genetic model included additive and non-additive genetic effects with broad-sense heritabilities for NA, SI and NAxSI estimated at 49%, 50% and 49%, respectively. Household effects showed small contributions (4-9%) to the total phenotypic variation. The genetic correlation between NA and SI was .66 (reflecting both additive and non-additive genetic components). Thus, Type D personality and its NA and SI subcomponents are heritable, with a shared genetic basis for the two subcomponents.

Self-Care and Pathophysiological Function in Patients with Chronic Heart Failure.

BACKGROUND: Self-care is assumed to benefit physiological function associated with prognosis in patients with chronic HF, but studies examining these relations are lacking. This study aims to prospectively examine the association of self-reported HF self-care with HF-associated pathophysiological markers, including renal, hematological, and immune function. METHOD: Patients with chronic HF (n = 460, 66.2 ± 9.6 years, 75% men) completed questionnaires and provided blood samples at baseline and 12-month follow-up. Linear mixed models examined random intercept and fixed between- and within-subjects effects of global self-care and the individual self-care behaviors on log-transformed TNF-α, IL-6, and IL-10, the glomerular filtration rate of creatinine (GFRcreat), and hemoglobin (Hb), controlling for sociodemographic and clinical covariates. RESULTS: Self-care was independently associated with lower GFRcreat levels (ß = - .14, P = .023) and improvement in self-care with a reduction in GFRcreat (ß = - .03, P = .042). Individual self-care behaviors were differentially associated with renal, inflammatory, and hematological markers. Regular exercise was associated with level differences in IL-6 (P < .001), and improvement in exercise was associated with increasing GFRcreat (P = .002) and increasing Hb (P = .010). Fluid restriction was associated with lower overall GFRcreat (P = .006), and improvement in fluid restriction was associated with decreasing GFRcreat (P = .014). Low-sodium intake was associated with lower levels of Hb (P = .027), lower TNF-alpha (P = .011), and lower IL-10 (P = .029). Higher levels of medication adherence were associated with reduced pro-inflammatory activation (P < .007). CONCLUSION: Our findings suggest that better global self-care was associated with poorer renal function. Performing self-care behaviors such as regular exercise and medication adherence was associated with improved physiological functioning, while restriction of fluid and sodium, and the associated daily weight monitoring were associated with adverse levels of pathophysiological biomarkers.

Latent profiles of early trauma & Type D personality: sex differences in cardiovascular risk markers.

BACKGROUND: Both adverse early life-events and distressed personality are associated with an increased cardiovascular risk. As there is an important link between these psychological factors, we investigated how these might cluster in sex-specific psychological profiles. We further examined the association of these profiles with cardiovascular risk markers. METHOD: 446 women (mean age = 49.8 ±â€¯17.9 years) and 431 men (mean age = 49.4 ±â€¯17.5 years) from the Dutch general population completed questionnaires on demographics, adverse early life-events (ETI), Type D personality (DS14), anxiety (GAD-7) and depressive (PHQ-9) symptoms, and traditional cardiovascular risk markers. RESULTS: A step-3 latent profile analysis identified three profiles in women (Reference, Type D & trauma, and Type D/no trauma) and four in men (Reference, Type D & trauma, Type D/no trauma, and Physical abuse). In women, the Type D/no trauma was associated with highest levels of emotional symptoms (OR = 2.47; 95% CI: 2.11-2.89), lipid abnormalities (OR = 3.69; 95% CI: 1.47-9.27), and increased levels of alcohol use (OR = 3.63; 95% CI: 1.42-9.30). The Type D & trauma profile was associated with increased levels of emotional symptoms (OR = 2.03; 95% CI: 1.70-2.42), highest levels of smoking (OR = 3.30; 95% CI: 1.21-8.97) and alcohol use (OR = 7.63; 95% CI: 2.86-20.33). Women in both profiles were older as compared to the Reference group (OR = 1.03; 95% CI: 1.01-1.05). In men, the Type D & trauma profile was associated with increased levels of emotional symptoms (OR = 1.11; 95% CI: 1.03-1.20). There were no significant differences between the profiles in lifestyle factors and cardiometabolic factors. CONCLUSIONS: In women, the Type D/no trauma profile and the Type D & trauma profile were associated with a specific combination of cardiovascular risk markers. In men, the Type D & trauma profile was associated with an increased level of emotional symptoms.

Type D Personality as a Risk Factor in Coronary Heart Disease: a Review of Current Evidence.

PURPOSE OF THE REVIEW: This review article synthesizes recent research findings on the psychological context of Type D personality and the mechanisms through which Type D affects disease progression and prognosis among patients with coronary heart disease (CHD). RECENT FINDINGS: One in four patients with CHD has a Distressed (Type D) personality, which is characterized by two stable traits: social inhibition and negative affectivity. Type D personality predicts increased mortality and morbidity burden, and poorer health-related quality of life. Type D is part of a family of psychosocial risk factors that affect CHD prognosis. The pattern of co-occurrence of these psychosocial factors and intra-individual differences in psychosocial profiles may affect risk prediction accuracy. Multiple biological and behavioral processes have been associated with Type D personality. Identifying pathways explaining the observed associations between Type D personality and CHD is important to improve etiological and pathophysiological knowledge and to design personalized interventions, and targeting specific risk-associated pathways.

Validity of the European Society of Cardiology's Psychosocial Screening Interview in Patients With Coronary Artery Disease-The THORESCI Study.

OBJECTIVE: The aim of the study was to examine the validity of the European Society of Cardiology (ESC) psychosocial screening instrument. METHODS: A total of 508 acute (67%) or elective (33%) percutaneous coronary intervention patients (mean [standard deviation]age = 63 [10] years, 81% male) completed the ESC screening interview and established questionnaires for psychosocial risk markers, that is, depression (Patient Health Questionnaire 9), anxiety (Generalized Anxiety Disorder Questionnaire 7), type D personality (Type D Scale 14), hostility (Cook-Medley Hostility Scale 7), and marital/work stress (Maudsley Marital Quality Questionnaire 6, Effort-Reward Imbalance Scale) during or close after hospital admission. At 1-year follow-up, angina and cardiopulmonary symptoms were assessed. RESULTS: Prevalence estimates of psychosocial factors based on the ESC screener were as follows: depression (18%), anxiety (33%), negative affectivity (11%), social inhibition (41%), work stress (17%), marital stress (2%), and hostility (38%). Analysis of correspondence with validated questionnaires revealed fair to moderate agreement (depression [κ = .39], anxiety [κ = .23], type D personality [κ = .21]), regardless of percutaneous coronary intervention indication. For work and marital stress, there was poor to fair performance (κ range = .04-.24); agreement for hostility was poor (κ = -.27). A positive ESC screen for depression, anxious tension, and type D personality was associated with more angina and cardiopulmonary symptoms at follow-up (odds ratios ranging between 1.85 (95% confidence interval = 0.84-4.08) and 8.01 (95% confidence interval = 2.35-27.35). CONCLUSIONS: The ESC screener contributes to the search for a multidimensional and easy-to-use psychosocial screening instrument for cardiac patients. Although the screener, in its current form, may not be sufficiently valid to reliably detect all predefined psychosocial factors, screening scores for depression and anxiety might be useful in clinical practice. Our findings can be used for further refinement and validation of the screener.

Perceived Cognition after Percutaneous Coronary Intervention: Association with Quality of Life, Mood and Fatigue in the THORESCI Study.

PURPOSE: Percutaneous coronary intervention (PCI) is a common invasive procedure for the treatment of coronary artery diseases. Long-term cognitive functioning after PCI and its association with health-related quality of life (HRQL) and psychological factors is relatively unknown. The aim of this study is to examine whether perceived cognitive functioning during the year after PCI is associated with HRQL over this time period, and whether mood, fatigue, and age are associated with changes in perceived cognition and HRQL. METHODS: Patients undergoing PCI (n = 384, 79% male, mean age = 63, SD = 10) were recruited in the observational Tilburg Health Outcome Registry of Emotional Stress after Coronary Intervention (THORESCI) cohort study. Perceived concentration and attention problems, HRQL, mood, and fatigue were assessed at baseline, at 1-month and 12-month follow-up. RESULTS: General linear mixed modeling analysis showed that across time, between- and within-subject differences in perceived concentration problems were associated with a reduced HRQL in all domains independent of clinical and demographic covariates. Only a part of this association could be explained by negative mood, fatigue, and older age. Similar findings were found for between-subject differences in perceived attention problems. CONCLUSIONS: Between-subject differences and within-subject changes in perceived cognition in PCI patients were strongly associated with HRQL across time, such that poorer perceived cognition was associated with poorer HRQL, independent of demographic and clinical variables. Most of the associations were also independent of mood and fatigue. The results should increase the awareness of clinicians for the role of cognition in the cardiac rehabilitation and recovery post-PCI.

Determinants of Dyspnea in Chronic Heart Failure.

BACKGROUND: Dyspnea is a hallmark symptom of heart failure (HF), associated with impaired functional capacity and quality of life. The experience of dyspnea is multifactorial and may originate from different sources. This study set out to examine the relative importance of potential contributors to dyspnea, ie, disease severity, inflammation and psychologic distress in a large prospective cohort of chronic HF patients. This study further aimed to examine the differential influence of cognitive and somatic symptoms of psychologic distress. METHODS AND RESULTS: Dyspnea complaints (Health Complaints Scale), demographic and clinical variables, and psychologic factors (ie, depression, anxiety, and Type D personality) were assessed in 464 HF patients (mean age 66.0 y, 70% men) at baseline and 1-year follow-up. Inflammatory markers (ie, tumor necrosis factor [TNF] α, interleukin [IL] 6, IL-10, soluble TNF receptors 1 and 2) were also assessed at both time points in a subsample (n = 247). Linear mixed modeling analysis with maximum likelihood estimation showed that when determinant clusters were entered separately, comorbid chronic obstructive pulmonary disease (COPD) was significantly associated with dyspnea complaints (P = .039), as were depression (P < .001) and anxiety (P < .001), whereas inflammation did not significantly affect dyspnea complaints. When all determinant clusters and covariates were entered together, results showed that body mass index (P = .013), COPD (P = .034), age (P = .005), depression (P < .001), and anxiety (P < .001) were significant independent associates of dyspnea complaints. Somatic depressive and somatic anxiety symptoms were responsible for these latter associations. CONCLUSIONS: The experience and report of dyspnea in HF is determined foremost by somatic symptoms of psychologic distress, being of older age, being overweight, and having comorbid COPD, with disease severity and systemic inflammation levels playing an ancillary role. These findings suggest that psychologic distress should be considered when treating dyspnea complaints in patients with HF.

Psychological Determinants of Heart Failure Self-Care: Systematic Review and Meta-Analysis.

OBJECTIVE: Psychological distress has been associated with poor outcomes in patients with chronic heart failure (HF), which is assumed to be partly due to poor HF self-care behavior. This systematic review and meta-analysis describes the current evidence concerning psychological determinants of self-care in patients with chronic HF. METHODS: Eligible studies were systematically identified by searching electronic databases PubMed, PsycINFO, and the Conference Proceedings Citation Index (Web of Science) for relevant literature (1980-October 17, 2014). Study quality was assessed according to the level of risk of bias. Quantitative data were pooled using random-effects models. RESULTS: Sixty-five studies were identified for inclusion that varied considerably with respect to sample and study characteristics. Risk of bias was high in the reviewed studies and most problematic with regard to selection bias (67%). Depression (r = -0.19, p < .001), self-efficacy (r = 0.37, p < .001), and mental well-being (r = 0.14, p = .030) were significantly associated with self-reported self-care. Anxiety was not significantly associated with either self-reported (r = -0.18, p = .24) or objective self-care (r = -0.04, p = .79), neither was depression associated with objectively measured medication adherence (r = -0.05, p = .44). CONCLUSIONS: Psychological factors (depression, self-efficacy, and mental well-being) were associated with specific self-care facets in patients with chronic HF. These associations were predominantly observed with self-reported indices of self-care and not objective indices. Methodological heterogeneity and limitations preclude definite conclusions about the association between psychological factors and self-care and should be addressed in future research.

Heritability and Temporal Stability of Ambulatory Autonomic Stress Reactivity in Unstructured 24-Hour Recordings.

OBJECTIVE: Measurements of ambulatory autonomic reactivity can help with our understanding of the long-term health consequences of exposure to psychosocial stress in real-life settings. METHODS: In this study, unstructured 24-hour ambulatory recordings of cardiac parasympathetic and sympathetic control were obtained in 1288 twins and siblings, spanning both work time and leisure time. These data were used to define two ambulatory baseline (sleep, leisure) and four stress conditions (wake, work, work_sitting, work_peak) from which six ambulatory stress reactivity measures were derived. The use of twin families allowed for estimation of heritability and testing for the amplification of existing or emergence of new genetic variance during stress compared with baseline conditions. RESULTS: Temporal stability of ambulatory reactivity was assessed in 62 participants and was moderate to high over a 3-year period (0.36 < r < 0.91). Depending on the definition of ambulatory reactivity used, significant heritability was found, ranging from 29% to 40% for heart rate, 34% to 47% for cardiac parasympathetic control (indexed as respiratory sinus arrhythmia), and 10% to 19% for cardiac sympathetic control (indexed as the preejection period). Heritability of ambulatory reactivity was largely due to newly emerging genetic variance during stress compared with periods of rest. Interestingly, reactivity to short standardized stressors was poorly correlated with the ambulatory reactivity measures implying poor laboratory-real-life correspondence. CONCLUSIONS: Ambulatory autonomic reactivity extracted from an unstructured real-life setting shows reliable, stable, and heritable individual differences. Real-life situations uncover a new and different genetic variation compared with that seen in resting baseline conditions, including sleep.

Neutrophil Gelatinase-Associated Lipocalin and depression in patients with chronic heart failure.

Depression adversely affects prognosis in heart failure (HF) patients. Inflammation is indicated as potential biological pathway in this co-morbidity. Since increased levels of the cytokine Neutrophil Gelatinase-Associated Lipocalin (NGAL) are predictive for HF prognosis, and recently indicated in patients with major depression, this study examined the association of serum NGAL levels with symptoms of depression in patients with HF. Serum NGAL levels were measured in 104 patients with HF (left ventricular ejection fraction, LVEF⩽40). Depression, evaluated using the Beck Depression Inventory (BDI; total score, somatic and cognitive component), and the Hamilton Depression Rating scale (HAMD), at baseline and 12months follow-up, was associated with NGAL levels using mixed model analysis. Analyses were adjusted for demographics measures, disease severity indicators, inflammation, comorbidity and medication. Increased serum NGAL levels were significantly associated with depression measured by HAMD (baseline: r=0.25, p<.05) and BDI (baseline: r=0.22, p<.05; 12months: r=0.37, p<.01). This association remained significant after adjustment for covariates; age, sex, time, LVEF, and creatinine (HAMD, t=2.01, p=.047; BDI, t=2.28, p=.024). NGAL was significantly associated with somatic- (p=0.004), but not cognitive depressive symptoms (p=0.32). NGAL levels were associated with the experienced HF-related functional limitations (6min walk test), rather than the severity of cardiac dysfunction (LVEF). This study indicates that depression in patients with chronic HF is associated with elevated NGAL levels, independent of clinical severity of the underlying disease.

Type D personality is associated with social anxiety in the general population.

BACKGROUND: Research on the emotional processes associated with Type D personality is important for its further conceptualization. We examined the associations of Type D personality with social and general anxiety symptoms in a large community sample. PURPOSE: The aim of the current study was to disentangle the associations of Type D personality and its components with social anxiety and general anxiety in a large sample from the general population. METHODS: A random sample of 2,475 adults from the general population filled out questionnaires to assess Type D personality (DS-14), social anxiety (SIAS(10), SPS(11), BFNE-II), and general anxiety (HADS-A, GAD-7). RESULTS: Type D individuals were characterized by increased levels of both social and general anxiety. The social inhibition (SI) component of Type D personality was most strongly associated with social interaction anxiety (r = .63), while negative affectivity (NA) was strongly associated with general anxiety (GAD-7: r = .70; HADS-A: r = .66). Within social anxiety, SI was more strongly associated with facets of social interaction anxiety than with social phobia. Multiple regression analysis showed that the synergistic interaction of NA and SI was a predictor of social anxiety (SIAS(10): ß = .32, p < .0005; SPS(11): ß = .27, p < .0005; BFNE-II: ß = .11, p = .007) independent of demographics and the scores on the individual Type D components. This interaction was not a significant predictor of general anxiety. Logistic regression using the dichotomous Type D classification demonstrated a 9.1-fold (95%CI, 7.0-11.8) increased odds of a score in the highest quartile of social interaction anxiety and a 7.6-fold (95%CI, 5.8-9.8) increased odds of high social phobia. Odds ratios for clinically relevant levels of general anxiety were 8.3 (95%CI, 5.5-12.5) for GAD-7 and 6.5 (95%CI, 3.4-12.6) for HADS-A. CONCLUSION: In the general population, Type D individuals were characterized by both social and general anxiety. The SI component of Type D is strongly associated with social interaction anxiety and the synergistic interaction of NA and SI was associated with high social anxiety, above and beyond the main NA and SI effects.