Effects of a brief intervention based on Acceptance and Commitment Therapy versus usual care for cardiac rehabilitation patients with coronary heart disease (ACTonHEART): a randomised controlled trial

OBJECTIVES

The main objective of the study is to investigate the short-term efficacy of Acceptance and Commitment Therapy (ACT) on the simultaneous modification of biological indicators of risk and psychological well-being in patients with coronary heart disease attending cardiac rehabilitation (CR).

DESIGN

This was a two-arm randomised controlled trial comparing a brief, manualised, ACT-based intervention with usual care (UC).

SETTING

The study was conducted in an outpatient CR unit in Italy. Data collection took place from January 2016 to July 2017.

PARTICIPANTS

Ninety-two patients were enrolled and randomised, following an unbalanced randomisation ratio of 2:1 to the ACT group (n=59) and the control group (n=33). Eighty-five patients completed the ACT (n=54) and the UC (n=31) interventions and were analysed.

INTERVENTIONS

The control group received UC, a 6 weeks multidisciplinary outpatient CR programme, encompassing exercise training, educational counselling and medical examinations. The experimental group, in addition to UC, participated in the Acceptance and Commitment Therapy on HEART disease (ACTonHEART) intervention encompassing three group sessions based on ACT.

OUTCOMES

The primary outcomes were Low Density Lipoproteins (LDL)cholesterol, resting systolic blood pressure, body mass index (BMI) and psychological well-being measured by the Psychological General Well-Being Index (PGWBI). Outcome measures were assessed at baseline and at the end of CR.

RESULTS

Based on linear mixed models, no significant group × time interaction was observed for either the primary outcomes (β, 95% CI: PGWBI =-1.13, -6.40 to -4.14; LDL cholesterol =-2.13, -11.02 to -6.76; systolic blood pressure =-0.50, -10.76 to -9.76; diastolic blood pressure =-2.73, -10.12 to -4.65; BMI =-0.16, -1.83 to -1.51, all p values >0.05) or the secondary outcomes (all p values >0.05). A significant time effect was found for the PGWBI total (beta=4.72; p=0.03).

CONCLUSIONS

Although analyses revealed null findings, the results can inform the design of future ACT-based CR interventions and can help researchers to strike a balance between the idealised implementation of an ACT intervention and the structural limitations of existing CR programmes.

TRIAL REGISTRATION NUMBER

NCT01909102.

“The heart in a bag”: The lived experience of patient-caregiver dyads with left ventricular assist device during cardiac rehabilitation

Objective

The Left Ventricular Assist Device (LVAD) has increasingly become a primary therapeutic option for longer-waiting heart transplant lists. Although survival rates are growing, the device requires complex home care. Therefore, the presence of a caregiver trained in the LVAD management is important for the success of the therapy. The LVAD leads both patients and their caregivers to experience new challenges and adapt to new lifestyle changes and limitations – but their subjective beliefs before home management remained little explored.

Design

This study identified, using a phenomenological hermeneutic approach, the main components of the LVAD experience of six patient-caregiver dyads interviewed during cardiac rehabilitation.

Results

We identified 4 master themes: Being between life and death, Being human with a heart of steel, Sharing is caring (and a burden), and Being small and passive.

Conclusion

The knowledge from this study can be used as a guide for healthcare providers in counseling LVAD recipients and their caregivers.

Yes, I can (with you)! Dyadic coping and self-management outcomes in cardiovascular disease: The mediating role of health self-efficacy

Cardiac patients show alarming levels of nonadherence to medications. It is important to consider also patient activation levels. Furthermore, the partner could have a supporting role in these processes. The aim of this study was to investigate the mediating role of patient health self-efficacy (HSE) in the link between dyadic coping (DC) and two self-management outcomes (i.e. medication adherence and patient activation) across the first 6 months of cardiac disease. One hundred couples completed two self-report questionnaires during the hospitalisation for cardiac disease and 6 months after discharge. A longitudinal and dyadic research design was adopted. Cross-sectional analyses at T0 revealed that patient-provided and perceived positive DC and common DC are positively associated with HSE, which in turn is positively associated with medication adherence. HSE mediated the association between patient positive and common DC styles, with the only exception of Patient-provided positive DC, and patient activation. Conversely, patient-provided and perceived negative DC are negatively associated with HSE, which in turns is positively associated with medication adherence and patient activation. Prospective analyses showed that only patient-perceived negative DC at discharge is negatively associated with HSE at T1, which in turns is positively associated with patient activation over time. These results suggest to consider patient perceived and provided DC as antecedents of self-management outcomes via patient HSE. Furthermore, our results recommend to pay particular attention to negative DC, whose negative consequences are manifested also over time, planning interventions targeting partners' awareness of their own DC style.

Heart-Focused Anxiety Affects Behavioral Cardiac Risk Factors and Quality of Life: A Follow-Up Study Using a Psycho-Cardiological Rehabilitation Concept

Background

Heart-focused anxiety (HFA) raises the risk for adverse outcomes in patients with heart disease. Despite this great importance, it is rarely assessed in clinical practice. Three dimensions are commonly defined in the context of HFA: heart-related fear, avoidance, and attention. The impact of these aspects on cardiac risk factors is essentially unclear. In this study, we investigated the relationship between HFA and behavioral cardiac risk factors as well as health-related quality of life (HRQoL), which represent important treatment outcomes of inpatient psycho-cardiological rehabilitation.

Methods

A prospective observational design was used to examine 238 rehabilitation inpatients with comorbidity of cardiac disease and psychiatric disorder. We assessed HFA using the Cardiac Anxiety Questionnaire (CAQ), HRQoL using the SF-12 Health Survey, exercise capacity using the 6-minute walk test, and smoking behavior, respectively at admission (t0) and discharge (t1). Physical activity was assessed at t0 and in a follow-up survey 6 months after discharge (t2) using the International Physical Activity Questionnaire (IPAQ). Multiple regression models were used to analyze the predictive value of HFA for the outcome variables at t0, t1, and t2, adjusted for socio-demographic factors and depression. Predictive values for changes over time were evaluated by the regressor variable approach.

Results

Exercise capacity and physical activity were negatively predicted by baseline heart-related avoidance, both cross-sectionally and prospectively. Avoidance at t1 also negatively predicted long-term changes over time in physical activity at t2. Total HFA and the subcomponent avoidance negatively predicted physical HRQoL both cross-sectionally and prospectively. Mental HRQoL was cross-sectionally predicted by heart-focused attention at t0, and prospectively predicted by total HFA and by avoidance. Regarding changes in the course of rehabilitation, baseline avoidance negatively predicted improvement in physical HRQoL during rehabilitation. Concerning smoking behavior, no associations with HFA were found.

Conclusions

HFA is a relevant inhibiting factor for the achievement of therapy goals in psycho-cardiological rehabilitation such as health behavior and HRQoL. Heart-related avoidance in particular, has a negative impact on exercise capacity, physical activity, and self-reported physical health. Its prospective negative predictive value for physical activity and physical health underlines the relevance of HFA for psycho-cardiological interventions.

Cardiac-specific experiential avoidance predicts change in general psychological well-being among patients completing cardiac rehabilitation

Previous studies have shown that experiential avoidance (EA) is associated with physical and psychological well-being in medical and non-medical samples. The aims of the present study were to evaluate the reciprocal association between psychological well-being and EA over time among cardiac rehabilitation (CR) patients with moderately to severely low levels of psychological well-being. Pre-CR data on demographic characteristics, measures of psychological well-being, and cardiac-specific EA were collected from 915 CR patients, as well as post-CR psychological well-being and EA data, from 800 of these patients. A cross-lagged model was estimated to examine the relationship between EA and psychological well-being among patients with moderately to severely low levels of psychological well-being based on questionnaire scores. Both EA and psychological well-being significantly changed during CR and were negatively associated with each other at both pre- and post-CR. Results from cross-lagged structural equation modeling supported a nonreciprocal association between EA and psychological well-being during CR. Pre-CR assessment of EA in patients showing low levels of well-being at the beginning of CR could help to identify patients at risk for worse psychological outcomes. EA could be a promising target of psychological treatments administered during CR.

Factors Influencing the Impact of Depressive Symptoms on Physical Functional Capacity After Cardiac Rehabilitation

PURPOSE

This study aims to determine (1) if depressive symptoms in the year following completion of cardiac rehabilitation impact physical functional capacity and (2) if exercise, perceived benefits and barriers, self-efficacy, and social support moderate this relationship.

DESIGN

This longitudinal correlational secondary data analysis included 379 cardiovascular rehabilitation patients.

METHODS

Participants completed measures of depression and potential moderating variables at baseline, 2 months, 6 months, and 12 months and 6-minute work test at baseline and 12 months and wore heart rate monitors to measure exercise for 12 months.

FINDINGS

Poorer physical functional capacity was predicted by depressed mood score. This relationship was moderated by the percentage of time exercising in target heart rate zone and family support of exercise, but not by perceived benefits and barriers or self-efficacy for exercise.

CONCLUSIONS

Depressive symptoms negatively impact physical functional capacity, and this relationship is moderated by family support and the percentage of time exercising in target heart rate zone.

CLINICAL RELEVANCE

Improving percentage of time exercising in target heart rate zone may be a mechanism by which patients with depressed mood can optimize physical functional capacity.