Depression and cardiovascular disease:

Association of Depression Risk with Patient Experience, Healthcare Expenditure, and Health Resource Utilization Among Adults with Atherosclerotic Cardiovascular Disease

BACKGROUND

Approximately 20% of patients with atherosclerotic cardiovascular disease (ASCVD) suffer from depression.

OBJECTIVE

To compare healthcare expenditures and utilization, healthcare-related quality of life, and patient-centered outcomes among ASCVD patients, based on their risk for depression (among those without depression), and those with depression (vs. risk-stratified non-depressed).

DESIGN AND SETTING

The 2004-2015 Medical Expenditure Panel Survey (MEPS) was used for this study.

PARTICIPANTS

Adults ≥ 18 years with a diagnosis of ASCVD, ascertained by ICD-9 codes and/or self-reported data. Individuals with a diagnosis of depression were identified by ICD-9 code 311. Participants were stratified by depression risk, based on the Patient Health Questionnaire-2.

RESULTS

A total of 19,840 participants were included, translating into 18.3 million US adults, of which 8.6% (≈ 1.3 million US adults) had a high risk for depression and 18% had a clinical diagnosis of depression. Among ASCVD patients without depression, those with a high risk (compared with low risk) had increased overall and out-of-pocket expenditures (marginal differences of $2880 and $287, respectively, both p < 0.001), higher odds for resource utilization, and worse patient experience and healthcare quality of life (HQoL). Furthermore, compared with individuals who had depression, participants at high risk also reported worse HQoL and had higher odds of poor perception of their health status (OR 1.83, 95% CI [1.50, 2.23]) and poor patient-provider communication (OR 1.29 [1.18, 1.42]).

LIMITATION

The sample population includes self-reported diagnosis of ASCVD; therefore, the risk of underestimation of the cohort size cannot be ruled out.

CONCLUSION

Almost 1 in 10 individuals with ASCVD without diagnosis of depression is at high risk for it and has worse health outcomes compared with those who already have a diagnosis of depression. Early recognition and treatment of depression may increase healthcare efficiency, positive patient experience, and HQoL among this vulnerable population.

The long-term effects of early-life trauma on psychological, physical and physiological health among the elderly: the study of Holocaust survivors

Objectives: To study post-traumatic stress symptoms and post-traumatic growth and heart rate variability among elderly Holocaust survivors and a matched comparison group and the mediational effect of post-traumatic stress symptoms and post-traumatic growth on the association between Holocaust experience and heart rate variability. Method: 159 Holocaust survivors and 87 matched participants without Holocaust experience answered post-traumatic stress symptoms and post-traumatic growth questionnaires. Heart rate variability time and frequency parameters were measured for a subsample of N = 133. Results: Holocaust survivors reported higher levels of post-traumatic stress symptoms and post-traumatic growth. Most heart rate variability measures were similar in the two groups, except for better heart rate variability measured by the ratio of low frequency/high frequency among Holocaust survivors. Structural equation modeling showed that belonging to the Holocaust survivor group was associated with higher post-traumatic stress symptoms and higher post-traumatic growth, as well as better heart rate variability scores (standard deviation of normal to normal R-R intervals, high frequency and the ratio of low frequency/high frequency) through the mediation of post-traumatic stress symptoms and post-traumatic growth. Conclusions: The study emphasized the duality of the association between post-traumatic stress symptoms and post-traumatic growth and their integrated effect on heart rate variability.

Are psychiatrists real doctors? A survey of the medical experience and training of psychiatric trainees in the west of Scotland

Aims and Method

A questionnaire was sent to 122 psychiatric trainees in the west of Scotland to clarify the extent to which trainees provide physical healthcare to their in-patients and to establish trainees' views on the need for further training.

Results

Almost all of the 65 respondents were expected to provide emergency care, and a large majority dealt with physical health problems on a regular basis. Few respondents had received any formal training in physical health care problems since entering psychiatry.

Clinical Implications

The results of the questionnaire suggest that psychiatric trainees are currently providing a considerable amount of physical healthcare for psychiatric in-patients. Clarifying the medical experiences and training of psychiatric trainees may help to inform future debate as to the appropriate management of physical healthcare for psychiatric patients.

Cardiovascular dysfunctions and sympathovagal imbalance in hypertension and prehypertension: physiological perspectives

Hypertension (HTN) and prehypertension (pre-HTN) have been identified as independent risk factors for adverse cardiovascular events. Recently, increased psychosocial stress and work stress have contributed to the increased prevalence of HTN and pre-HTN, in addition to the contribution of obesity, diabetes, poor food habits and physical inactivity. Irrespective of the etiology, sympathetic overactivity has been recognized as the main pathophysiologic mechanism in the genesis of HTN and pre-HTN. Sympathovagal imbalance owing to sympathetic overactivity and vagal withdrawal is reported to be the basis of many clinical disorders. However, the role played by vagal withdrawal has been under-reported. In this review, we have analyzed the pathophysiologic involvement of sympathovagal imbalance in the development of HTN and pre-HTN, and the link of sympathovagal imbalance to cardiovascular dysfunctions. We have emphasized that adaptation to a healthier lifestyle will help improve sympathovagal homeostasis and prevent the occurrence of HTN and pre-HTN.

The relationship of autonomic imbalance, heart rate variability and cardiovascular disease risk factors

Cardiovascular disease (CVD) is the leading cause of death and disability worldwide. The understanding of the risk factors for CVD may yield important insights into the prevention, etiology, course, and treatment of this major public health concern. Autonomic imbalance, characterized by a hyperactive sympathetic system and a hypoactive parasympathetic system, is associated with various pathological conditions. Over time, excessive energy demands on the system can lead to premature aging and diseases. Therefore, autonomic imbalance may be a final common pathway to increased morbidity and mortality from a host of conditions and diseases, including cardiovascular disease. Heart rate variability (HRV) may be used to assess autonomic imbalances, diseases and mortality. Parasympathetic activity and HRV have been associated with a wide range of conditions including CVD. Here we review the evidence linking HRV to established and emerging modifiable and non-modifiable CVD risk factors such as hypertension, obesity, family history and work stress. Substantial evidence exists to support the notion that decreased HRV precedes the development of a number of risk factors and that lowering risk profiles is associated with increased HRV. We close with a suggestion that a model of autonomic imbalance may provide a unifying framework within which to investigate the impact of risk factors, including psychosocial factors and work stress, on cardiovascular disease.

The role of vagal function in the risk for cardiovascular disease and mortality

Cardiovascular disease (CVD) is the leading cause of death and disability worldwide. The understanding of the risk factors for CVD may yield important insights into the prevention, etiology, course, and treatment of this major public health concern. We review the evidence for the role of vagal function in the risk for cardiovascular disease and mortality. Using a broad range of indicators of vagal function including resting heart rate, heart rate recovery, heart rate variability, and baroreflex sensitivity we show that decreased vagal function is associated with an increased risk for morbidity and mortality. These effects are independent of traditional risk factors. Moreover, we show that decreased vagal function is associated with both traditional and emerging risk factors as well as modifiable and non-modifiable risk factors. Most importantly, we provide evidence to support the notion that decreased vagal function precedes the development of a number of risk factors and that modification of risk profiles in the direction of lower risk is associated with increased vagal function. We close with a brief overview of the neural concomitants of vagal function and suggest that a model of neurovisceral integration may provide a unifying framework within which to investigate the impact of risk factors, including psychosocial factors, on cardiovascular disease.