Testing of a health-related quality of life model in patients with heart failure: A cross-sectional, correlational study

Physical Symptoms, Depressive Symptoms, and Quality of Life in Patients With Heart Failure: Cluster Analysis

BACKGROUND

Physical and psychological symptoms are prevalent in patients with heart failure (HF) and are associated with poor quality of life (QOL) and high hospitalization rates. Thus, it is critical to identify symptom clusters to better manage patients with high-risk symptom cluster(s) and to reduce adverse effects.

OBJECTIVE

The aims of this study were to identify clusters of physical HF symptoms (ie, dyspnea during daytime, dyspnea when lying down, fatigue, chest pain, edema, sleeping difficulty, and dizziness) and depressive symptoms and to examine their association with QOL in patients with HF.

METHODS

In this secondary analysis of a cross-sectional study, data on physical HF symptoms (Symptom Status Questionnaire), depressive symptoms (Patient Health Questionnaire-9), and general QOL (European Quality of Scale-Visual Analog Scale) were collected. We identified clusters based on the physical HF symptoms and depressive symptoms using 2-step and k -means cluster analysis methods.

RESULTS

Chest pain was removed from the model because of the low importance value. Two clusters were revealed (cluster 1, severe symptom cluster, vs cluster 2, less severe symptom cluster) based on the 7 symptoms. In cluster 1, all of the 7 symptoms were more severe, and QOL was poorer than those in cluster 2 (all P s < .001). All the mean and median scores of the 7 symptoms in cluster 1 were higher than those in cluster 2.

CONCLUSIONS

Patients with HF were clearly divided into 2 clusters based on physical HF symptoms and depressive symptoms, which were associated with QOL. Clinicians should assess these symptoms to improve patient outcomes.

The Relationship Between Resilience and Health-Related Quality of Life Among Heart Failure Patients in New York Heart Association Functional Classes II and III

BACKGROUND

Heart failure is an intense, unpredictable, and stressful chronic disease caused by the decline in cardiac pumping function. The influence of heart failure affects patients not only in terms of physical capabilities but also in terms of their emotional and social dimensions, with patients in different functional classes experiencing different levels of effect. Although resilience and health-related quality of life have been studied in populations with heart failure, the scholarly understanding of different functional classes is limited.

PURPOSE

This study was designed to investigate the relationship between resilience and health-related quality of life among patients with heart failure in different physical functional classes in Taiwan.

METHODS

A cross-sectional design was applied to study patients with heart failure in northern Taiwan. Two structured questionnaires, including the Resilience Scale for Adults and the 12-item Short Form Health Survey, were used to assess resilience and health-related quality of life. New York Heart Association functional class was used to determine physical function status, and canonical correlation analysis was used to determine the weight of each resilience and quality-of-life domain for the different functional classes.

RESULTS

The 100 participants had an average age of 65.52 years. Slightly over half (56%) were classified as Functional Class II. A group difference in health-related quality of life was observed. Personal strength (rs = .759) and social competence (rs = -.576) were found to influence the resilience and emotional role dimension of quality of life (rs = -.996) in the Functional Class II group. In addition, family cohesion (rs = -.922), dominant resilience, physical function (rs = .467), and bodily pain (rs = .465) were found to influence quality of life in the Functional Class III group.

CONCLUSIONS/IMPLICATIONS FOR PRACTICE

The efficacy of measures taken to increase resilience to heart failure varied in patients in different functional classes. Functional Class II individuals were better able to manage the disease using their personal strength, whereas Functional Class III individuals relied more heavily on family support and assistance for this effort. Furthermore, participant feelings about quality of life also varied by functional class, with physical function and bodily pain taking on significantly more importance for Functional Class III individuals.

Factors Related to Patients' Self-care and Self-care Confidence in Korean Patients With Heart Failure and Their Caregivers: A Cross-sectional, Correlational Study

BACKGROUND

The relationships of patient factors and caregiver contribution to patients' self-care to different types of self-care have been rarely examined in Korean patients with heart failure.

OBJECTIVE

The aim of this study was to examine patient (ie, age, depressive symptoms, and self-care confidence) and caregiver (ie, caregiver contribution to self-care maintenance and self-care management, and caregiver confidence in contributing to self-care) factors related to different types of self-care (ie, self-care maintenance, symptom perception, and self-care management) and self-care confidence in Korean patients with heart failure.

METHODS

In this cross-sectional, correlational study, data from 41 pairs of patients (mean age, 68.0 years) and caregivers (mean age, 54.1 years) were collected and analyzed using multiple regression.

RESULTS

Higher levels of self-care confidence in patients were related to higher levels of self-care maintenance in patients. Higher levels of self-care confidence in patients were related to higher levels of symptom perception. Higher levels of self-care confidence in patients and caregiver contribution to self-care maintenance were related to higher levels of self-care management. Less severe depressive symptoms in patients and higher levels of caregiver confidence in contributing to self-care were related to higher levels of self-care confidence.

CONCLUSION

Different patient and caregiver factors were related to different types of self-care and self-care confidence in Korean patients, but patients' self-care confidence was related to all types of self-care. Clinicians and researchers need to develop and deliver effective interventions to both patients and their caregivers to improve patients' self-care confidence and, in turn, self-care, considering different factors associated with each type of self-care.

Predictive Model for Quality of Life in Patients With Heart Failure

BACKGROUND

Although many studies have been conducted to examine predictors of quality of life (QoL), little information exists on the real-world application of Rector's conceptual model for QoL related to heart failure (HF).

OBJECTIVES

In this study, we aimed to examine a hypothetical model of QoL based on Rector's conceptual model for QoL in relation to HF and the existing literature on patients with HF.

METHODS

Using a cross-sectional survey, 165 patients with HF were recruited from an outpatient clinic in Korea. Data were collected based on Rector's model constructs, such as cardiac function, symptoms, functional limitation, depression, distress, and QoL. Left ventricular ejection fraction for cardiac function was measured using echocardiography.

RESULTS

Functional limitation, depression, and distress, but not symptoms, had a direct effect on QoL (all Ps < .001). Cardiac function and symptoms directly affected functional limitation (β = 0.186, P = .004, and β = -0.488, P = < .001, respectively), whereas cardiac function, symptoms, and depression affected QoL through functional limitation and distress.

CONCLUSIONS

These results confirm that the Rector's model is suitable for predicting QoL in patients with HF. These findings have potential to guide and inform intervention programs designed to alleviate symptoms in patients with HF, enhance their physical functioning, and moderate their psychological distress with the ultimate goal of improving their QoL.