Symptom recognition in elders with heart failure

Physical Heart Failure Symptom Clusters Predictive of Delay in Seeking Treatment

BACKGROUND

Recent research has focused on the relationship between heart failure (HF) symptom clusters and outcomes, including mortality, hospitalization, functional status, and quality of life. No known studies to date have explored the role of physical HF symptom clusters and delays in seeking treatment.

OBJECTIVES

Describe physical symptom clusters in a population of HF patients and determine if a specific cluster is predictive of delay in seeking treatment for HF symptoms.

METHOD

We analyzed combined data from two studies ( n = 406) collected during acute HF hospitalization. The Heart Failure Somatic Awareness Scale quantified physical HF symptoms. Delay, measured in days, was collected from the medical record and confirmed by interview. Hierarchical agglomerative clustering techniques determined physical HF symptom clusters. Hierarchical multiple regression analysis was computed to explore predictors of delay.

RESULTS

Participants were primarily White, male sex older adults. Three physical HF symptom clusters were identified: discordant, edema-related, and dyspnea-related symptoms. Hierarchical multiple regression analysis revealed in Step 1 that age was a significant predictor of delay.

DISCUSSION

Our findings provide valuable insight into the role of physical symptom clusters on delay in persons with HF. Through agglomerative hierarchical clustering techniques, we found three physical HF symptom clusters that were then used to determine differences in cluster membership by demographic and clinical variables. Significant age differences were noted by cluster membership with youngest older adults in a discordant symptom cluster.

Feasibility, acceptability, and outcome responsiveness of the SYMPERHEART intervention to support symptom perception in persons with heart failure and their informal caregivers: a feasibility quasi-experimental study

BACKGROUND

Symptom perception is an important process of heart failure (HF) self-care that persons with HF need in order to master self-care management. It also leads to better patient outcomes. Symptom perception consists of body observation and analysis, which are both challenging. We aimed to test the feasibility, acceptability, and outcome responsiveness of a novel intervention (SYMPERHEART) delivered to persons with HF with their informal caregiver.

METHODS

We designed SYMPERHEART as a complex evidence-informed education and support intervention targeting body observation and analysis. We conducted a feasibility quasi-experimental study with a single group pre-post-test design. We included three subsamples: persons with HF receiving home-based care, their informal caregivers exposed to SYMPERHEART, and home-care nurses who delivered SYMPERHEART during 1 month. We assessed feasibility by recruitment time, time to deliver SYMPERHEART, eligibility rate, and intervention fidelity. We assessed acceptability by consent rate, retention rate, persons with HF engagement in body observation, and treatment acceptability. Outcome responsiveness was informed by patient-reported (PRO) and clinical outcomes: HF self-care and the informal caregivers' contribution to HF self-care, perception of HF symptom burden, health status, caregivers' burden, and HF events. We performed descriptive analyses for quantitative data and calculated Cohen's d for PROs. A power analysis estimated the sample size for a future full-scale effectiveness study.

RESULTS

We included 18 persons with HF, 7 informal caregivers, and 9 nurses. Recruitment time was 112.6 h. The median time to deliver SYMPERHEART for each participant was 177.5 min. Eligibility rate was 55% in persons with HF. Intervention fidelity revealed that 16 persons with HF were exposed to body observation and analysis. Consent and retention rates in persons with HF were 37.5% and 100%, respectively. Participants engaged actively in symptom and weight monitoring. Treatment acceptability scores were high. Symptom perception and informal caregivers' contribution to symptom perception were found to be responsive to SYMPERHEART. We estimate that a sample size of 50 persons with HF would be needed for a full-scale effectiveness study.

CONCLUSIONS

SYMPERHEART was found to be feasible and acceptable. This feasibility study provides information for a subsequent effectiveness study.

TRIAL REGISTRATION

ISRCTN. ISRCTN18151041 , retrospectively registered on 4 February 2021, ICTRP Search Portal.

Breathlessness in older adults: What we know and what we still need to know

Breathlessness is common among older adults, but it is often hidden as "normal aging "or considered narrowly as a symptom of cardio-respiratory diseases. Studies on breathlessness in older adults are mostly focused on specific diseases, whereas older adults are characterized by multimorbidity and multi-system age-related impairments. This article aims to provide an overview of what is known so far on breathlessness in the general population of older adults and identify areas for further research. Research shows that breathlessness in older adults is a multifactorial geriatric condition, crossing the borders of system-based impairments and diseases, and a valuable independent prognostic indicator for adverse outcomes. Further research needs to investigate (1) the multi-factorial mechanisms of breathlessness in community-dwelling older adults including the role of respiratory sarcopenia; (2) the influence of affective and cognitive changes of older age on the perception and report of breathlessness; (3) the best way to assess and use breathlessness for risk prediction of adverse outcomes in general geriatric assessments; and (4) the most appropriate multi-modal rehabilitation interventions and their outcomes. Clinicians need to shift their approach to dyspnea from a disease symptom to a multifactorial geriatric condition that should be proactively searched for, as it identifies higher risk for adverse outcomes, and can be addressed with evidence-based interventions that can improve the quality of life and may reduce the risk of adverse outcomes in older adults.

Somatic Changes Perceived by Patients With Heart Failure During Acute Exacerbation: A Qualitative Study Using Text Mining

BACKGROUND

Patients with heart failure (HF) often inadequately perceive their symptoms. This may be because the medical terms do not match the somatic changes experienced by patients. To improve symptom perception, healthcare professionals must understand the somatic changes as perceived by patients.

OBJECTIVE

This study aims to analyze patients' narratives about somatic changes in patients with HF by text mining and to clarify the overall description of somatic changes using patients' expressions.

METHODS

Semistructured interviews were conducted on 21 patients hospitalized for acute exacerbation of HF. Qualitative data obtained from the interviews were analyzed by content analysis through text mining.

RESULTS

Among the 21 patients, 76.2% were men. The mean (SD) age was 71.3 (13.7) years. The most frequently used terms were "breath," "distressed," "feet," and " ha-ha (gasping sound)" (46, 40, 29, and 28 times, respectively). The somatic changes noticed by patients could be categorized into medical jargon such as "dyspnea on exertion," "exercise intolerance," "fatigue," "paroxysmal nocturnal dyspnea," "frequent urination," "increased sputum," "weight gain," "feet and face edema," "abdominal edema," and "ankle edema." However, the expressions of somatic changes used by the patients were diverse.

CONCLUSIONS

The findings of patient-specific expressions of symptoms suggest that there is a need to assess symptoms not only using medical jargon but also by focusing on patient-specific expressions.

Heart Failure Knowledge, Symptom Perception, and Symptom Management in Patients With Heart Failure

BACKGROUND

Prevention of heart failure (HF) exacerbations requires that patients carefully self-manage their condition. Symptom perception is a key component in self-care for patients with HF that involves monitoring for HF symptoms and recognizing symptom changes. Heart failure knowledge is a prerequisite for better symptom perception and symptom management. However, the relationships among HF knowledge, symptom perception, and symptom management remain unclear.

OBJECTIVE

The aim of this study was to explore the inter-relationships among HF knowledge, symptom monitoring, symptom recognition, and symptom response in patients with HF.

METHOD

We included 185 patients with HF in this study. Heart failure knowledge was measured using the Dutch HF Knowledge Scale. Symptom monitoring, symptom recognition, and symptom response were measured using the Self-care of HF Index. Structural equation modeling was used for data analyses.

RESULTS

Heart failure knowledge was associated with symptom monitoring (β = .357, P < .001). Symptom monitoring was directly associated with both symptom recognition (β = .371, P < .001) and symptom response (β = .499, P < .001). Symptom recognition was directly associated with symptom response (β = .274, P < .001). Heart failure knowledge was not directly associated with symptom recognition, nor with symptom response. Heart failure knowledge was indirectly associated with symptom recognition and symptom response through symptom monitoring.

CONCLUSION

Symptom monitoring is associated with both symptom recognition and symptom response and is a mediator between HF knowledge and symptom recognition and between HF knowledge and symptom response. This finding suggests that it is important for clinicians not just to increase patients' HF knowledge but also to enhance their skills of symptom monitoring and symptom recognition and promote symptom monitoring among patients to improve symptom response in self-care.

Symptom detection and the relationship with self-care in heart failure

AIM

Patients with heart failure (HF) may have difficulty detecting symptom changes. However, most research has relied on medical record reviews or patient recall. Therefore, it is important to prospectively explore symptom detection in HF and the relationship with self-care. This study aimed at (i) prospectively identifying distinct symptom detection groups and comparing characteristics among the groups and (ii) exploring the association between symptom detection groups and self-care.

METHODS AND RESULTS

One hundred and thirty-two patients rated their shortness of breath (SOB) using the modified Borg scale at four-time points after a 6-min walk test (6-MWT). A trained nurse simultaneously and independently rated patients' SOB using the same scale. Latent class growth modelling was used to identify distinct trajectories of the differences in SOB ratings between the patients and nurses after the 6-MWT. After identifying the symptom detection groups, the characteristics of each group were compared, and the relationship between self-care and the symptom detection groups was examined using the multivariate linear regression. Three distinct symptom detection groups were identified: over-estimation (6.1%), consistent (69.7%), and under-estimation (24.2%) groups. There were no significant sample characteristics among the three symptom detection groups, except for attention. There was no relationship between self-care and symptom detection groups.

CONCLUSIONS

We identified three distinct symptom detection groups, implying that different approaches are needed to improve patients' symptom detection ability. The non-significant relationship between the symptom detection groups and self-care may be because we only measured symptom detection, which is only one aspect of the symptom perception process.

Effectiveness of daily activity record-based self-monitoring intervention for patients with chronic heart failure: A study protocol

Background

The prevention of recurrent readmission among heart failure (HF) patients requires support for appropriate self-care behaviors to prevent exacerbation of HF and self-monitoring to allow for patients’ early perception of physical changes during exacerbations. Such support may enable patients to seek early consultation. This study developed a self-monitoring intervention that aimed at increasing the perception of patient-unique physical sensations caused by HF, based on daily activity records of patients.

Method

A parallel two-arm randomized controlled trial is being conducted with 68 HF patients early after their discharge. Participants in both groups wear a wristwatch activity tracker from time-of-discharge. Participants in the self-monitoring intervention group receive support to reflect on their actual daily activities and the associated physical sensations they experienced, based on their daily activity records. The primary outcome is participants’ “Asking for Help” dimension of self-care behavior, measured using the European Heart Failure Self-Care Behavior Scale at one month follow-up after intervention.

Conclusion

This study is the first trial to use an activity tracker as a tool for symptom perception among HF patients. The problem of delayed consultations during exacerbations may be resolved by assisting patients in improving their perception of their unique physical sensations associated with specific daily activities, based on their daily activity records. If the effect is clarified, it could lead to the construction of new nursing interventions for continuous disease management that aim towards re-hospitalization prevention.

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This is the first trial using an activity tracker for symptom perception in HF.

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Intervention focuses on physical sensations perception along with daily activities.

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Trial will test intervention's effect on early consultation behavior and readmission.

State of the Science: The Relevance of Symptoms in Cardiovascular Disease and Research: A Scientific Statement From the American Heart Association

Symptoms of cardiovascular disease drive health care use and are a major contributor to quality of life. Symptoms are of fundamental significance not only to the diagnosis of cardiovascular disease and appraisal of response to medical therapy but also directly to patients' daily lives. The primary purpose of this scientific statement is to present the state of the science and relevance of symptoms associated with cardiovascular disease. Symptoms as patient-reported outcomes are reviewed in terms of the genesis, manifestation, and similarities or differences between diagnoses. Specifically, symptoms associated with acute coronary syndrome, heart failure, valvular disorders, stroke, rhythm disorders, and peripheral vascular disease are reviewed. Secondary aims include (1) describing symptom measurement methods in research and application in clinical practice and (2) describing the importance of cardiovascular disease symptoms in terms of clinical events and other patient-reported outcomes as applicable.

A Socioecological Model of Heart Failure Self-Care

Heart failure is a chronic, progressively worsening condition afflicting more than 64 million individuals worldwide. Heart failure outcomes are influenced by self-care, a naturalistic patient-centered decision-making process. The situation-specific theory of heart failure self-care addresses how this decision-making process determines actions and outcomes. However, little is known about the impact of socioecological determinants of health on heart failure self-care. A theoretical synthesis could advance the situation-specific theory of heart failure self-care through the inclusion of socioecological determinants of health. Thus, socioecological determinants of health related to heart failure self-care can be better explored, understood, and overcome through research and health promotion.

Patterns and predictors of dyspnoea following left ventricular assist device implantation

AIMS

Dyspnoea is a common symptom of heart failure (HF) that often prompts patients to seek treatment. Implantation of a left ventricular assist device (LVAD) has been associated with reduced dyspnoea but it is unclear if all patients experience similar improvements in dyspnoea over time following LVAD implantation. Our aim was to identify distinct trajectories of dyspnoea symptoms over time following LVAD implantation and predictors of dyspnoea trajectory. We hypothesized that at least two, distinct trajectories of dyspnoea would be observed following LVAD implantation.

METHODS AND RESULTS

This was a secondary analysis of data from the Profiling Biobehavioral Responses to Mechanical Support in Advanced Heart Failure study. In the parent study, sociodemographic and clinical data were collected prior to LVAD implantation and at 1, 3, and 6 months following LVAD implantation from a sample (n = 101) of patients with advanced HF. Latent growth mixture modelling was performed to identify distinct trajectories of dyspnoea symptoms. Backwards stepwise logistic regression was used to identify predictors of dyspnoea trajectory. Two, distinct trajectories of dyspnoea symptoms were identified: sustained improvement and unsustained improvement. Participants who experienced sustained improvement (86.7% of sample) demonstrated large, significant improvement in dyspnoea from pre-implantation to 3 months post-implant followed by smaller, non-significant improvement from 3 to 6 months. Participants who experienced unsustained improvement (13.3% of sample) demonstrated initial improvement from pre-implantation to 3 months post-implantation followed by worsening of dyspnoea from 3 to 6 months. Greater depressive symptoms at baseline and living alone were significant predictors of unsustained improvement.

CONCLUSION

Patients experience different patterns of dyspnoea over time following LVAD implantation. Clinicians should inquire about living arrangements and depressive symptoms at each visit to determine risk of unsustained improvement in dyspnoea.

The Level of Self-Care among Patients with Chronic Heart Failure

Introduction: In a long-term approach to the treatment of heart failure, importance is given to the process of self-care management and behaviors. The number of rehospitalizations and unscheduled medical visits can be reduced by actively engaging patients in the self-care process. Methods: The study included 403 patients with chronic heart failure (mean LVEF 40.53%), hospitalized in the Cardiology Department. Medical record analysis and a self-report questionnaire were used to obtain basic sociodemographic and clinical data. The European Heart Failure Self-care Behavior Scale, revised into a nine-item scale (EHFScBS-9), was used to evaluate self-care behavior. Results: Analysis of the EHFSc-9 self-care behavior scale showed that the mean score was 49.55 out of 100 possible points (SD = 22.07). Univariate analysis revealed that significant (p < 0.05) negative predictors of the EHFScB-9 self-care scale included: male sex (b = −5146), hospitalizations in the last year (b = −5488), NYHA class II (b = −11,797) and NYHA IV class (b = −15,196). The multivariate linear regression model showed that a significant (p ˂ 0.05) negative predictor of the EHFScB-9 self-care scale was male sex (b = −5.575). Conclusions: Patients with chronic HF achieve near optimal self-care behavior outcomes. A patient prepared to engage with self-care will have fewer rehospitalizations and a better quality of life.

Forgone Medical Care Associated With Increased Health Care Costs Among the U.S. Heart Failure Population

OBJECTIVES

The objective of this study was to describe the prevalence of patients with forgone/delayed care for heart failure (HF) and examine the associated demographic characteristics, health care utilization, and costs.

BACKGROUND

HF is a leading cause of morbidity and mortality, with health care expenditures projected to increase 3-fold from 2012 to 2030. The proportion of HF patients with forgone/delayed medical care and the association with health care expenditures and utilization remain unknown.

METHODS

Data on patients with HF were obtained from the Medical Expenditure Panel Survey to assess expenditures and health care utilization in the United States from 2004 to 2015. Patients with HF who reported forgone/delayed care, any missed or delayed medical treatment, were compared with those without care lapses.

RESULTS

Overall, 16% of patients with HF reported forgone/delayed care, including 10% among the elderly (aged ≥65 years) and 27% among the nonelderly (age <65 years). Patients with HF who reported forgone/delayed care had annual health care expenses $8,027 (95% CI: $1,181-$14,872) higher than those who did not. Among the elderly, those reporting forgone/delayed care had more emergency department visits (43% vs 58%; P < 0.05), and had higher annual inpatient costs (+$7,548; 95% CI: $1,109-$13,988) and total health care costs (+$10,581; 95% CI: $1,754-$19,409). Sixty percent of nonelderly and 46% of elderly patients with HF reported deferring care due to financial barriers.

CONCLUSIONS

Nearly 1 in 6 patients with HF in the United States reported forgone/delayed medical care, with one-half attributing it to financial reasons, and this was associated with higher overall health care spending.

Age and gender differences in physical heart failure symptom clusters

BACKGROUND

Gender differences exist in structure and function of the heart resulting in HF symptom variation. Previous HF symptom cluster research described symptom clusters that were linked to functional status, mortality, quality of life and rehospitalization. Age and gender differences between cluster groups were described in one study.

OBJECTIVES

Identify physical HF symptom clusters and explore age and gender differences between clusters.

METHODS

Secondary analysis study of adults with HF. Cluster analysis was conducted using hierarchical agglomerative clustering techniques. A pictorial dendrogram output displays clusters.

RESULTS

Three symptom clusters were identified in this sample of 133 older HF patients that differed by gender (p = 0.04), age (p = 0.00) and beta blocker use (p = 0.01). Symptom clusters were consistent with worsening HF, acute HF and chronic HF.

CONCLUSION

Symptom clusters differ by age and gender. Education should be directed at increasing patient awareness of their individual symptom clusters.

Delay in seeking medical care for worsening heart failure symptoms: predictors and association with cardiac events

AIMS

The association of delay in seeking medical care to subsequent cardiac events remains unknown in patients with worsening heart failure (HF) symptoms. The aims of this study were to (i) identify factors predicting care-seeking delay and (ii) examine the impact of care-seeking delay on subsequent cardiac rehospitalization or death.

METHODS AND RESULTS

We studied 153 patients hospitalized with an exacerbation of HF. Potential predictors of delay including demographic, clinical, psychosocial, cognitive, and behavioural variables were collected. Patients were followed for 3 months after discharge to determine time to the first cardiac rehospitalization or death. The median delay time was 134 h (25th and 75th percentiles 49 and 364 h). Non-linear regression showed that New York Heart Association functional class III/IV (P = 0.001), worse depressive symptoms (P = 0.004), better HF knowledge (P = 0.003), and lower perceived somatic awareness (P = 0.033) were predictors of delay time from patient perception of worsening HF to subsequent hospital admission. Cox regression revealed that patients who delayed longer (more than 134 h) had a 1.93-fold higher risk of experiencing cardiac events (P = 0.044) compared to non-delayers.

CONCLUSIONS

Care-seeking delay in patients with worsening HF symptoms was significantly associated with an increased risk of rehospitalization and mortality after discharge. Intervention strategies addressing functional status, psychological state, cognitive and behavioural factors are essential to reduce delay and thereby improve outcomes.

Older and younger patients' perceptions, evaluations, and responses to worsening heart failure symptoms

BACKGROUND

Whether recognition and prompt response to worsening symptoms are worse in older compared with younger patients with heart failure (HF) is unclear.

OBJECTIVES

The aims of this study were to compare older and younger patients (1) perceptions, evaluations, and responses to worsening HF symptoms, and (2) responses once worsening symptoms were perceived.

METHODS

A mixed-methods study was conducted and to compare data between older (≥ 65) and younger (< 65) in 185 patients hospitalized with HF.

RESULTS

There were few differences attributed to age. In response to higher perceived symptom distress, patients in both groups did nothing and hoped their symptoms would go away (p = 0.004), ignored symptoms and continued doing what they were doing (p = 0.002), or laid down to relax (p < 0.001).

CONCLUSIONS

The majority of patients, regardless of age, did not recognize, interpret, and respond appropriately to HF symptoms. Interventions should be tested that target better symptom appraisal and promote appropriate symptom responses in patients with HF across all ages.

Validity and reliability of the Multidimensional Dyspnoea Profile in older adults

Breathlessness is a common and distressing symptom in older adults and an independent predictor of adverse outcomes and yet its multidimensional assessment has not been validated in older adults. We apply and validate the Multidimensional Dyspnoea Profile (MDP) in a sample of adults 75 years and older in Belgium.

Breathlessness was rated with the MDP, the modified Borg Dyspnoea Scale (mBDS), the Short Physical Performance Battery (SPPB, a numerical rating scale for intensity and unpleasantness both before and after exertion), as well as with the Medical Research Council (MRC) Dyspnoea Scale. The Hospital Anxiety and Depression Scale (HADS) assessed the affective status. Factor structure was analysed with exploratory principal components analysis, internal consistency with Cronbach's alpha and concurrent validity with Spearman's correlation coefficients with other breathlessness scales, HADS and SPPB scores.

In 96 participants (mean age 85 years; 34% men) who rated breathlessness at both assessment points, exploratory principal components analysis identified two components: Immediate Perception (IP) and Emotional Reaction (ER), explaining most of the MDP item variance (65.37% before and 71.32% after exertion). Internal consistency was moderate to high for MDP-IP (Cronbach's alpha = 0.86 before and 0.89 after exertion) and MDP-ER (Cronbach's alpha = 0.89 before and 0.91 after exertion). The correlation patterns of MDP-IP and MDP-ER with other tests confirmed concurrent validity.

The domain structure, reliability and concurrent validity of MDP for breathlessness before and after exertion were confirmed in a sample of adults 75 years and older, supporting its use and further research for the multidimensional profiling of breathlessness in older adults.

Domain structure, reliability and concurrent validity of the MDP were confirmed in a sample of adults aged ≥75 years before and after exertion, supporting its use for the multidimensional assessment of breathlessness in this age grouphttps://bit.ly/3emiNRW

Symptom perception in heart failure - Interventions and outcomes: A scoping review

BACKGROUND

Symptom perception in heart failure has recently been described as essential in the self-care process bridging self-care maintenance and self-care management. Accordingly, symptom perception appears to be critical for improving patient outcomes such as decreased hospital readmission and increased survival.

OBJECTIVES

To explore what interventions have been reported on heart failure symptom perception and to describe outcomes responsive to symptom perception.

DESIGN

We conducted a scoping review using PRISMA Extension for Scoping Reviews.

DATA SOURCES

Structured searches of Medline, PubMed, Embase, CINAHL, PsychINFO, Web of Science, Cochrane, Joanna Briggs Institute and Grey literature databases.

REVIEW METHODS

Two authors independently screened references for eligibility. Eligible articles were written in English, French, German, Swedish, Italian or Spanish and concerned symptom perception in adults with heart failure. Data were extracted and charted in tables by three reviewers. Results were narratively summarized.

RESULTS

We identified 99 eligible studies from 3055 references. Seven interventional studies targeted symptom perception as the single intervention component. Mixed results have been found: while some reported decreased symptom frequency, intensity and distress, enhanced health-related quality of life, improved heart failure self-care maintenance and management as well as a greater ability to mention heart failure symptoms, others found more contacts with healthcare providers or no impact on anxiety, heart failure self-care nor a number of diary reported symptoms. Additional interventional studies included symptom perception as one component of a multi-faceted intervention. Outcomes responsive to symptom perception were improved general and physical health, decreased mortality, heart failure decompensation, as hospital/emergency visits, shorter delays in seeking care, more consistent weight monitoring, improved symptom recognition as well as self-care management, decreased hospital length of stay and decreased costs.

CONCLUSIONS

While many studies allowed to map a comprehensive overview of interventions supporting symptom perception in heart failure as well as responsiveness to outcomes, only a few single component intervention studies targeting symptom perception have been reported and study designs preclude assessing intervention effectiveness. With regard to multiple component interventions, the specific impact of symptom perception interventions on outcomes remains uncertain to date. Well-designed studies are needed to test the effectiveness of symptom perception interventions and to elucidate relationships with outcomes.

The Relationship Between Body Awareness and Self-care in Patients With Heart Failure: Moderating Effect of Age

BACKGROUND

Recognizing changing symptoms is challenging for patients with heart failure (HF), especially older patients. Body awareness involves an attentional focus on and awareness of internal bodily changes. Patients with poor body awareness are unlikely to recognize subtle bodily changes, which may result in improper self-care. Despite the potential benefits of body awareness, its contribution to HF management has not been examined.

AIMS

The aims of this study were to examine the relationship between body awareness and self-care in patients with HF and explore whether this relationship varies by age.

METHODS

Patients (N = 136) completed the Body Awareness Questionnaire and 2 scales of the Self-care of HF Index (maintenance and management). Linear regression models were constructed to explore the relationship between body awareness and self-care after controlling for covariates. The moderation effect of age on the relationship between body awareness and self-care was examined using the PROCESS macro.

RESULTS

Body awareness was associated with self-care maintenance (unstandardized coefficient = 0.19; 95% confidence interval, 0.05-0.34) but not management. When the interaction effect of body awareness and age was entered in the regression model, neither self-care maintenance nor management was related to this interaction term.

CONCLUSION

We found that body awareness is conducive to self-care maintenance but not self-care management in patients with HF, and the relationship between body awareness and self-care did not vary by age. Our findings suggest that relying on internal body sensations may be insufficient to facilitate self-care management. Thus, other strategies along with the strategies to enhance body awareness are necessary to improve the full process of self-care in HF patients.

Navigating Symptom Management in Heart Failure: The Crucial Role of the Critical Care Nurse

High-acuity, progressive care, and critical care nurses often provide care for patients with heart failure during an exacerbation of acute disease or at the end of life. Identifying and managing heart failure symptoms is complex and requires early recognition and early intervention. Because symptoms of heart failure are not disease specific, patients may not respond to them appropriately, resulting in treatment delays. This article reviews the complexities and issues surrounding the patient's ability to recognize heart failure symptoms and the critical care nurse's role in facilitating early intervention. It outlines the many barriers to symptom recognition and response, including multimorbidities, age, symptom intensity, symptom escalation, and health literacy. The influence of self-care on heart failure management is also described. The critical care nurse plays a crucial role in teaching heart failure patients to identify and respond appropriately to their symptoms, thus promoting early intervention.

Prospective Evaluation of Association Between Negative Emotions and Heart Failure Symptom Severity

Background

Prior studies of symptoms in heart failure (HF) were largely cross-sectional and symptoms were measured using retrospective recall. Because negative emotions influence information processing, retrospective symptom reports by patients with depressive symptoms and anxiety may be biased. The purpose of this study was to determine whether there are differences in patterns of symptom changes, measured prospectively, over 15 days by levels of depressive symptoms and anxiety.

Methods

HF patients (N=52) rated daily symptom severity for shortness of breath (SOB), fatigue, sleep disturbance, and edema over 15 days on a 10-point visual analogue scale. Patients were grouped into higher vs lower levels of depressive symptoms and anxiety, respectively, based on median scores of Brief Symptom Inventory subscales. Latent growth curve modeling was used to examine whether patterns of symptom changes over 15 days differed in higher vs lower levels of depressive symptom and anxiety groups.

Results

Those in the higher depressive symptom group had lower levels of baseline symptom severity in SOB (β: -1.46), fatigue (β: -1.71), sleep disturbance (β: -1.78), and edema (β: -1.97) than those in the lower depressive symptom group. However, there were no significant differences in rates of changes in the severity of any of the four symptoms between groups. Anxiety was not associated with baseline severity of symptoms or rates of changes in any of the four symptoms.

Conclusion

Depressive symptoms, but not anxiety, were associated with daily symptom experience. HF patients with higher levels of depressive symptoms may perceive their symptom severity differently than patients with lower levels of depressive symptoms.

Non-Contact Respiratory Measurement Using a Depth Camera for Elderly People

Measuring respiration at home for cardiac patients, a simple method that can detect the patient's natural respiration, is needed. The purpose of this study was to develop an algorithm for estimating the tidal volume (TV) and respiratory rate (RR) from the depth value of the chest and/or abdomen, which were captured using a depth camera. The data of two different breathing patterns (normal and deep) were acquired from both the depth camera and the spirometer. The experiment was performed under two different clothing conditions (undressed and wearing a T-shirt). Thirty-nine elderly volunteers (male = 14) were enrolled in the experiment. The TV estimation algorithm for each condition was determined by regression analysis using the volume data from the spirometer as the objective variable and the depth motion data from the depth camera as the explanatory variable. The RR estimation was calculated from the peak interval. The mean absolute relative errors of the estimated TV for males were 14.0% under undressed conditions and 10.7% under T-shirt-wearing conditions; meanwhile, the relative errors for females were 14.7% and 15.5%, respectively. The estimation error for the RR was zero out of a total of 206 breaths under undressed conditions and two out of a total of 218 breaths under T-shirt-wearing conditions for males. Concerning females, the error was three out of a total of 329 breaths under undressed conditions and five out of a total of 344 breaths under T-shirt-wearing conditions. The developed algorithm for RR estimation was accurate enough, but the estimated occasionally TV had large errors, especially in deep breathing. The cause of such errors in TV estimation is presumed to be a result of the whole-body motion and inadequate setting of the measurement area.

An Integrative Review of the Symptom Perception Process in Heart Failure

BACKGROUND

Accurate symptom perception is a fundamentally essential component of self-care for patients with heart failure (HF) so they can make appropriate decisions about their symptoms.

OBJECTIVE

The purpose of this integrative review was to describe the pathways of the symptom perception process and its contributing factors in patients with HF.

METHODS

A comprehensive literature search was conducted using PubMed, EMBASE, and PsycINFO databases to identify studies describing the symptom perception process (symptom detection, comprehension, and response) in adult patients with HF.

RESULTS

Two pathways of the symptom perception process were identified from 42 articles: ideal and undesirable pathways. Patients in the ideal symptom perception pathway had a comprehensive understanding of HF and a firm belief in the importance of self-care, were vigilant, and possessed good decision-making skills. They also were able to successfully use their experiences for future care. However, patients in the undesirable symptom perception pathway had a limited understanding of HF with poor symptom monitoring skills and inaccurate judgments about symptoms. Diverse factors contributing to the symptom perception process were identified (eg, levels of understandings of HF and social support).

CONCLUSION

Our review indicated that symptom perception was likely to diversify the pathway of HF management. A variety of contributing factors to the symptom perception process were found to be intertwined. The findings of our review can inform the development of best patient education practice, although further research needs to be conducted to understand why and how patients can follow the most appropriate path from their past experiences.

Identifying unique profiles of perceived dyspnea burden in heart failure

BACKGROUND

Dyspnea is a common symptom of heart failure (HF) but dyspnea burden is highly variable.

OBJECTIVES

Identify distinct profiles of dyspnea burden and identify predictors of dyspnea symptom profile.

METHODS

A secondary analysis of data from five studies completed at Oregon Health and Science University was conducted. The Heart Failure Somatic Perception Scale was used to measure dyspnea burden. Latent class mixture modeling identified distinct profiles of dyspnea burden in a sample of HF patients (n = 449). Backwards stepwise multinomial logistic regression identified predictors of latent profile membership.

RESULTS

Four profiles of dyspnea burden were identified: no dyspnea/not bothered by dyspnea, mild dyspnea, moderate exertional dyspnea, and moderate exertional dyspnea with orthopnea and PND. Higher age was associated with greater likelihood of not being bothered by dyspnea than having moderate exertional dyspnea with orthopnea and PND. Higher NYHA class, anxiety, and depression were associated with greater likelihood of greater dyspnea burden.

CONCLUSIONS

Burden of dyspnea is highly variable among HF patients. Clinicians should account for the nuances of dyspnea and the activities that induce dyspnea when assessing HF patients.

Integrating Symptoms Into the Middle-Range Theory of Self-Care of Chronic Illness

The Middle-Range Theory of Self-Care of Chronic Illness has been used widely since it was first published in 2012. With the goal of theoretical refinement in mind, we evaluated the theory to identify areas where the theory lacked clarity and could be improved. The concept of self-care monitoring was determined to be underdeveloped. We do not yet know how the process of symptom monitoring influences the symptom appraisal process. Also, the manner in which self-care monitoring and self-care management are associated was thought to need refinement. As both of these issues relate to symptoms, we decided to enrich the Middle-Range Theory with knowledge from theories about symptoms. Here, we propose a revision to the Middle-Range Theory of Self-Care of Chronic Illness where symptoms are clearly integrated with the self-care behaviors of self-care maintenance, monitoring, and management.

Symptom Perception and Influencing Factors in Chinese Patients with Heart Failure: A Preliminary Exploration

A growing body of evidence supports the fact that optimal health-related quality of life is largely dependent on patient competence in symptom perception. However, many studies have reported poor symptom perception in patients with heart failure. In China, there has been no previous research on assessing the symptom perception ability of patients with heart failure. This study aimed to describe how Chinese patients with heart failure perceive their symptoms, as well as to explore their influencing factors. A theory-based, descriptive, correlational cross-sectional design was used in this study. Data on symptom perception and factors related to symptom perception were collected via structured interviews and medical records. A convenience sample of 208 hospitalized patients was enrolled. The degree of symptom perception in this study was at a high level. The results showed that the level of depression, the New York Heart Association functional class, the left ventricular ejection fraction, and educational background were identified as independent factors of symptom perception in Chinese patients with heart failure. The degree of symptom perception of patients with heart failure was affected by personal, psychological, and physiological factors. Health policy and healthcare providers should pay more attention and deepen the understanding to Chinese patients with heart failure to provide better healthcare.

Symptom perception in heart failure: a scoping review on definition, factors and instruments

BACKGROUND

Symptom perception in heart failure has been identified as crucial for effective self-care that is a modifiable factor related to decreased hospital readmission and improved survival.

AIMS

To review systematically the heart failure symptom perception literature and synthesise knowledge on definition, description, factors and instruments.

METHODS

We conducted a scoping review including studies reporting patient-reported symptom perception in adults with heart failure. Structured searches were conducted in Medline, PubMed, Embase, CINAHL, PsychINFO, Web of Science, Cochrane, JBI and grey literature. Two authors independently reviewed references for eligibility. Data were charted in tables and results narratively summarised.

RESULTS

The search yielded 3057 references, of which 106 were included. The definition of heart failure symptom perception comprised body listening, monitoring signs, recognising, interpreting and labelling symptoms, and furthermore awareness of and assigning meaning to the change. Symptom monitoring, recognition and interpretation were identified as challenging. Symptom perception facilitators include prior heart failure hospitalisation, heart failure self-care maintenance, symptom perception confidence, illness uncertainty and social support. Barriers include knowledge deficits, symptom clusters and lack of tools/materials. Factors with inconsistent impact on symptom perception include age, sex, education, experiences of living with heart failure, comorbidities, cognitive impairment, depression and symptom progression. One instrument measuring all dimensions of heart failure symptom perception was identified.

CONCLUSION

Heart failure symptom perception definition and description have been elucidated. Several factors facilitating or hampering symptom perception are known. Further research is needed to determine a risk profile for poor symptom perception - which can then be taken into consideration when supporting heart failure self-care.

The lived experience of breathlessness for people diagnosed with heart failure: a qualitative synthesis of the literature

PURPOSE OF REVIEW

The experience of breathlessness in patients with heart failure is understudied. This review was aimed at evaluating the most recent qualitative findings regarding the experience of breathlessness in persons diagnosed with heart failure.

RECENT FINDINGS

A literature search was conducted using Pubmed, Psycinfo, BNI, Cinahl and Google Scholar including studies on breathlessness experience in patients with heart failure, published between 2017 and 2018. Only three studies were identified, and findings were categorized into five themes: acknowledgment of breathlessness, prevailing consequences of breathlessness, breathlessness in daily life, recognising when breathlessness is a problem and communicating breathlessness. Understanding the experience of breathlessness was different before and after heart failure diagnosis. Patients experienced similar physical and emotional consequences of breathlessness but varied in strategies to manage the symptom. Patients often do not report breathlessness symptom, or are not asked to describe their symptom by the provider.

SUMMARY

Recent studies show those at risk for and those who have heart failure need appropriate education to recognize breathlessness as a critical symptom. In addition, adequate communication between patients and providers of the breathlessness symptom is needed to support management.

Knowledge among patients with heart failure: A narrative synthesis of qualitative research

BACKGROUND

Patients' knowledge of heart failure (HF) is integral to improved outcomes. However, the HF literature has not adequately explored the nature of patients' knowledge of HF as part of their lived experience.

OBJECTIVES

We aimed to characterize the nature of patients' knowledge of HF, in the context of living with the disease.

METHODS

We conducted a narrative synthesis of qualitative studies that addressed patients' knowledge of HF. Studies were systematically searched and retrieved from MEDLINE, CINAHL, PsycINFO and PsycARTICLES databases. Findings were synthesized using an iterative coding process carried out by multiple analysts and reported following Enhancing Transparency in the Reporting of Qualitative Health Research (ENTREQ) criteria.

RESULTS

Analysis of 73 eligible articles produced five themes: the content that comprises HF knowledge; development of HF knowledge over time; application of HF knowledge for decision making; communication of information between clinicians and patients; and patients' experience of knowledge.

CONCLUSION

The nature of patients' knowledge of HF is both explicit and implicit, dynamic, and personal. This multidimensional model of knowledge-in-context calls for equally multidimensional research and intervention design.

Patients’ Beliefs About Causes and Consequences of Heart Failure Symptoms

Patients’ perceptions of the causes and consequences of heart failure (HF) symptoms may impact effective self-management. The purpose of this study was to describe and explore patients’ perceptions of HF symptom status and the causes and consequences on their daily lives in patients with HF. Descriptive and qualitative data were obtained from 20 patients using a semistructured interview guide. Data were analyzed using content analysis and descriptive statistics. Participants reported 15 symptoms (median = 4). Five themes were (a) multiple causes and multiple symptoms; (b) knowing some causes, but still unclear; (c) not being able to live life as previously did; (d) facing emotional distress due to HF symptoms; and (e) development of new priorities and lifestyles. The findings demonstrate that all participants perceived considerable difficulties living with HF symptoms. More comprehensive interventions need to be delivered to patients to manage multiple causes and symptoms effectively.

Self-reported adherence to physical activity recommendations compared to the IPAQ interview in patients with hypertension

BACKGROUND

Physical activity (PA) is recommended as adjuvant therapy to control blood pressure (BP). The effectiveness of simple recommendations is not clear. We aimed to assess the agreement between self-report of adherence to PA in clinical routine and International Physical Activity Questionnaire (IPAQ) interview and its association with BP control.

METHODS

A cross-sectional study was conducted with hypertensive outpatients. Adherence to recommendation to PA was assessed by the physician and IPAQ interview. A cutoff of 150 minutes/week was used to classify active or nonactive patients. High sitting time was considered >4 hours/day. A total of 127 individuals (SBP 144.9±24.4 mmHg/DBP 82.0±12.8 mmHg) were included.

RESULTS

A total of 69 subjects (54.3%) reported to be active to their physician, whereas 81 (63.8%) were classified as active by IPAQ (6.3% active in leisure time PA). Kappa test was 0.22 (95% CI, 0.06-0.37). The rate of BP control was 45.7%. There was no association with the reported PA assessed by both methods nor with sitting time. Our results demonstrated poor agreement between self-report adherence and IPAQ interview, and neither evaluation was associated with BP control.

CONCLUSION

Our findings underpin evidences that a simple PA recommendation has low association with BP control in clinical settings.

Medication Adherence Mediates the Relationship Between Heart Failure Symptoms and Cardiac Event-Free Survival in Patients With Heart Failure

BACKGROUND

Heart failure (HF) symptoms such as dyspnea are common and may precipitate hospitalization. Medication nonadherence is presumed to be associated with symptom exacerbations, yet how HF symptoms, medication adherence, and hospitalization/death are related remains unclear.

OBJECTIVE

The aim of this study was to explore the relationships among HF symptoms, medication adherence, and cardiac event-free survival in patients with HF.

METHODS

At baseline, patient demographics, clinical data, and HF symptoms were collected in 219 patients with HF. Medication adherence was monitored using the Medication Event Monitoring System. Patients were followed for up to 3.5 years to collect hospitalization and survival data. Logistic regression and survival analyses were used for the analyses.

RESULTS

Patients reporting dyspnea or ankle swelling were more likely to have poor medication adherence (P = .05). Poor medication adherence was associated with worse cardiac event-free survival (P = .006). In Cox regression, patients with HF symptoms had 2 times greater risk for a cardiac event than patients without HF symptoms (P = .042). Heart failure symptoms were not a significant predictor of cardiac event-free survival after entering medication adherence in the model (P = .091), indicating mediation.

CONCLUSIONS

Medication adherence was associated with fewer HF symptoms and lower rates of hospitalization and death. It is important to develop interventions to improve medication adherence that may reduce HF symptoms and high hospitalization and mortality in patients with HF.

Symptom clusters and treatment time delay in Korean patients with ST-elevation myocardial infarction on admission

Most patients with acute myocardial infarction (AMI) experience more than one symptom at onset. Although symptoms are an important early indicator, patients and physicians may have difficulty interpreting symptoms and detecting AMI at an early stage. This study aimed to identify symptom clusters among Korean patients with ST-elevation myocardial infarction (STEMI), to examine the relationship between symptom clusters and patient-related variables, and to investigate the influence of symptom clusters on treatment time delay (decision time [DT], onset-to-balloon time [OTB]). This was a prospective multicenter study with a descriptive design that used face-to-face interviews. A total of 342 patients with STEMI were included in this study. To identify symptom clusters, two-step cluster analysis was performed using SPSS software. Multinomial logistic regression to explore factors related to each cluster and multiple logistic regression to determine the effect of symptom clusters on treatment time delay were conducted. Three symptom clusters were identified: cluster 1 (classic MI; characterized by chest pain); cluster 2 (stress symptoms; sweating and chest pain); and cluster 3 (multiple symptoms; dizziness, sweating, chest pain, weakness, and dyspnea). Compared with patients in clusters 2 and 3, those in cluster 1 were more likely to have diabetes or prior MI. Patients in clusters 2 and 3, who predominantly showed other symptoms in addition to chest pain, had a significantly shorter DT and OTB than those in cluster 1. In conclusion, to decrease treatment time delay, it seems important that patients and clinicians recognize symptom clusters, rather than relying on chest pain alone. Further research is necessary to translate our findings into clinical practice and to improve patient education and public education campaigns.

A mixed methods study of symptom perception in patients with chronic heart failure

BACKGROUND

Early heart failure (HF) symptoms are frequently unrecognized for reasons that are unclear. We explored symptom perception in patients with chronic HF.

METHODS

We enrolled 36 HF out-patients into a longitudinal sequential explanatory mixed methods study. We used objectively measured thoracic fluid accumulation and daily reports of signs and symptoms to evaluate accuracy of detected changes in fluid retention. Patterns of symptom interpretation and response were explored in telephone interviews conducted every 2 weeks for 3-months.

RESULTS

In this sample, 44% had a mismatch between objective and subjective fluid retention; younger persons were more likely to have mismatch. In interviews, two patterns were identified: those able to interpret and respond appropriately to symptoms were higher in decision-making skill and the quality of social support received.

CONCLUSION

Many HF patients were poor at interpreting and managing their symptoms. These results suggest a subgroup of patients to target for intervention.

A qualitative meta-summary using Sandelowski and Barroso's method for integrating qualitative research to explore barriers and facilitators to self-care in heart failure patients

BACKGROUND

Individual qualitative studies provide varied reasons for why heart failure patients do not engage in self-care, yet articles that aggregated primary studies on the subject have methodological weaknesses that justified the execution of a qualitative meta-summary.

AIM

The aim of this study is to integrate the findings of qualitative studies pertaining to barriers and facilitators to self-care using meta-summary techniques.

METHODS

Qualitative meta-summary techniques by Sandelowski and Barroso were used to combine the findings of qualitative studies. Meta-summary techniques include: (1) extraction of relevant statements of findings from each report; (2) reduction of these statements into abstracted findings and (3) calculation of effect sizes. Databases were searched systematically for qualitative studies published between January 2010 and July 2015. Out of 2264 papers identified, 31 reports based on the accounts of 814 patients were included in the meta-summary.

RESULTS

A total of 37 statements of findings provided a comprehensive inventory of findings across all reports. Out of these statements of findings, 21 were classified as barriers, 13 as facilitators and three were classed as both barriers and facilitators. The main themes relating to barriers and facilitators to self-care were: beliefs, benefits of self-care, comorbidities, financial constraints, symptom recognition, ethnic background, inconsistent self-care, insufficient information, positive and negative emotions, organizational context, past experiences, physical environment, self-initiative, self-care adverse effects, social context and personal preferences.

CONCLUSION

Based on the meta-findings identified in this study, future intervention development could address these barriers and facilitators in order to further enhance self-care abilities in heart failure patients.

Correlates of dyspnoea and its association with adverse outcomes in a cohort of adults aged 80 and over

Background

adults aged 80 and over, a fast growing age-group, with increased co-morbidity and frailty have not been the focus of previous research on dyspnoea. We investigate the correlates of dyspnoea and its association with adverse outcomes in a cohort of adults aged 80 and over.

Methods

about 565 community-dwelling adults aged 80 and over of the BELFRAIL prospective cohort had assessment of Medical Research Council dyspnoea scale (MRC), forced expiratory volume in 1 s (FEV1), N-terminal pro-brain natriuretic peptide (NT-proBNP), physical performance tests, grip strength, 15 items geriatric depression scale, activities of daily living (ADL), body mass index (BMI) and demographics data. Kaplan-Meier survival curves, Cox and logistic multivariable regression, classification and regression tree (CART) analysis assessed association of dyspnoea (MRC 3-5) with time-to-cardiovascular and all-cause death (5 years), time to first hospitalisation (3 years), new/worsened ADL disability (2 years), and its correlates.

Results

participants with dyspnoea MRC 3-5 (29.9%) had increased hazard ratios for cardiovascular mortality 2.85 (95% confidence interval 1.93-4.20), all-cause mortality 2.04 (1.58-2.64), first hospitalisation 1.72 (1.35-2.19); and increased odds ratio for new/worsened disability 2.49 (1.54-4.04), independent of age, sex and smoking status. Only FEV1, physical performance, BMI and NT-proBNP (in order of importance) were selected in the tree-based classification model for dyspnoea.

Conclusions

in a cohort of adults aged 80 and over, dyspnoea was common and an independent predictor of adverse outcomes, with cardio-respiratory and physical performance impairments as key independent correlates. Its routine and comprehensive evaluation in primary care could be very valuable in caring for this age-group.

The Home-Heart-Walk study, a self-administered walk test on perceived physical functioning, and self-care behaviour in people with stable chronic heart failure: A randomized controlled trial

BACKGROUND

Adherence to self-care recommendations is associated with improved patient outcomes and improved quality of life for people living with heart failure. The Home-Heart-Walk (HHW) is an intervention to promote physical activity adapting the elements of a six minute walk test, a reliable and valid measure. This adaptation was designed to support self-monitoring of physical functioning and promote the self-care of people with heart failure. The primary outcome of the Home-Heart-Walk was perceived physical functioning and the secondary outcomes were six-minute walk test distance, health related quality of life, self-care behaviour, self-efficacy and physical activity level.

METHODS

A multicentre randomized controlled trial. Participants ( N=132) were recruited from three academic hospitals in Sydney, Australia. Participants were randomized to either the Home-Heart-Walk group or the control group. Perceived physical functioning, health related quality of life, self-care behaviour, exercise self-efficacy and physical activity level were measured at baseline and at three- and six-month follow-up.

RESULTS

After adjusting for baseline scores, there were no statistically significant between-group differences in perceived physical functioning, six-minute walk test distance, health related quality of life and exercise self-efficacy at follow-up. The intervention group had improvement in self-care behaviour ( F(1,129) = 4.75, p = 0.031) and physical activity level ( U = 1713, z = -2.12, p = 0.034) at the six-month follow-up compared with the control group.

CONCLUSION

The Home-Heart-Walk did not improve the perceived physical functioning of the intervention group. Although the feasibility and acceptability of this strategy to support self-monitoring and improve self-care behaviour was demonstrated, self-reported adherence was unreliable; newer technologies may offer better assessment of adherence.

Heart Failure: Self-care to Success: Development and evaluation of a program toolkit

The Heart Failure: Self-care to Success toolkit was developed to assist NPs in empowering patients with heart failure (HF) to improve individual self-care behaviors. This article details the evolution of this toolkit for NPs, its effectiveness with patients with HF, and recommendations for future research and dissemination strategies.

Self-Care Among Older Adults With Heart Failure

Background: It is estimated that 5.7 million Americans are living with heart failure (HF) today. Despite the fact that HF is one of the most common reasons people aged 65 years and older are admitted into the hospital, few studies describe the self-care in this older adult population. Purpose: The purpose of the study was to review the current literature on self-care in this population to better understand the influence of selected factors on self-care and health outcomes. Methods: A literature search was completed and resulted in including 28 studies. Results: Multiple factors have been reported as barriers to self-care including depression and presence of peripheral arterial disease. Factors having a positive effect on self-care are male gender, number of cardiologist referrals, and self-efficacy. There were few studies that described the association between cognitive functioning and self-care. There is a lack of strong evidence to support the association between self-care and health outcomes such as readmission rate, but recent studies suggest that a 30-day readmission is not a valid predictor of health outcomes. Implications: The assessment of the psychological factors and health care resource utilization patterns that may influence self-care is recommended. More research that addresses the role of cognitive factors in influencing self-care is needed.

Informing the Design of "Lifestyle Monitoring" Technology for the Detection of Health Deterioration in Long-Term Conditions: A Qualitative Study of People Living With Heart Failure

Background

Health technologies are being developed to help people living at home manage long-term conditions. One such technology is “lifestyle monitoring” (LM), a telecare technology based on the idea that home activities may be monitored unobtrusively via sensors to give an indication of changes in health-state. However, questions remain about LM technology: how home activities change when participants experience differing health-states; and how sensors might capture clinically important changes to inform timely interventions.

Objective

The objective of this paper was to report the findings of a study aimed at identifying changes in activity indicative of important changes in health in people with long-term conditions, particularly changes indicative of exacerbation, by exploring the relationship between home activities and health among people with heart failure (HF). We aimed to add to the knowledge base informing the development of home monitoring technologies designed to detect health deterioration in order to facilitate early intervention and avoid hospital admissions.

Methods

This qualitative study utilized semistructured interviews to explore everyday activities undertaken during the three health-states of HF: normal days, bad days, and exacerbations. Potential recruits were identified by specialist nurses and attendees at an HF support group. The sample was purposively selected to include a range of experience of living with HF.

Results

The sample comprised a total of 20 people with HF aged 50 years and above, and 11 spouses or partners of the individuals with HF. All resided in Northern England. Participant accounts revealed that home activities are in part shaped by the degree of intrusion from HF symptoms. During an exacerbation, participants undertook activities specifically to ease symptoms, and detailed activity changes were identified. Everyday activity was also influenced by a range of factors other than health.

Conclusions

The study highlights the importance of careful development of LM technology to identify changes in activities that occur during clinically important changes in health. These detailed activity changes need to be considered by developers of LM sensors, platforms, and algorithms intended to detect early signs of deterioration. Results suggest that for LM to move forward, sensor set-up should be personalized to individual circumstances and targeted at individual health conditions. LM needs to take account of the uncertainties that arise from placing technology within the home, in order to inform sensor set-up and data interpretation. This targeted approach is likely to yield more clinically meaningful data and address some of the ethical issues of remote monitoring.

Is there a clinically meaningful difference in patient reported dyspnea in acute heart failure? An analysis from URGENT Dyspnea

BACKGROUND

Dyspnea is the most common presenting symptom in patients with acute heart failure (AHF), but is difficult to quantify as a research measure. The URGENT Dyspnea study compared 3 scales: (1) 10 cm VAS, (2) 5-point Likert, and (3) a 7-point Likert (both VAS and 5-point Likert were recorded in the upright and supine positions). However, the minimal clinically important difference (MCID) to patients has not been well established.

METHODS

We performed a secondary analysis from URGENT Dyspnea, an observational, multi-center study of AHF patients enrolled within 1 h of first physician assessment in the ED. Using the anchor-based method to determine the MCID, a one-category change in the 7-point Likert was used as the criterion standard ('minimally improved or worse'). The main outcome measures were the change in visual analog scale (VAS) and 5-point Likert scale from baseline to 6-h assessment relative to a 1-category change response in the 7-point Likert scale ('minimally worse', 'no change', or 'minimally better').

RESULTS

Of the 776 patients enrolled, 491 had a final diagnosis of AHF with responses at both time points. A 10.5 mm (SD 1.6 mm) change in VAS was the MCID for improvement in the upright position, and 14.5 mm (SD 2.0 mm) in the supine position. However, there was no MCID for worsening, as few patients reported worse dyspnea. There was also no significant MCID for the 5-point Likert scale.

CONCLUSION

A 10.5 mm change is the MCID for improvement in dyspnea over 6 h in ED patients with AHF.

Assessing the usability by clinicians of VISION: A hierarchical display of patient-collected physiological information to clinicians

BACKGROUND

The inability of patients to accurately and completely recount their clinical status between clinic visits reduces the clinician's ability to properly manage their patients. One way to improve this situation is to collect objective patient information while the patients are at home and display the collected multi-day clinical information in parallel on a single screen, highlighting threshold violations for each channel, and allowing the viewer to drill down to any analog signal on the same screen, while maintaining the overall physiological context of the patient. All this would be accomplished in a way that was easy for the clinician to view and use.

METHODS

Patients used five mobile devices to collect six heart failure-related clinical variables: body weight, systolic and diastolic blood pressure, pulse rate, blood oxygen saturation, physical activity, and subjective input. Fourteen clinicians practicing in a heart failure clinic rated the display using the System Usability Scale that, for acceptability, had an expected mean of 68 (SD, 12.5). In addition, we calculated the Intraclass Correlation Coefficient of the clinician responses using a two-way, mixed effects model, ICC (3,1).

RESULTS

We developed a single-screen temporal hierarchical display (VISION) that summarizes the patient's home monitoring activities between clinic visits. The overall System Usability Scale score was 92 (95% CI, 87-97), p < 0.0001; the ICC was 0.89 (CI, 0.79-0.97), p < 0.0001.

CONCLUSION

Clinicians consistently found VISION to be highly usable. To our knowledge, this is the first single-screen, parallel variable, temporal hierarchical display of both continuous and discrete information acquired by patients at home between clinic visits that presents clinically significant information at the point of care in a manner that is usable by clinicians.

The Situation-Specific Theory of Heart Failure Self-Care: Revised and Updated

BACKGROUND

Since the situation-specific theory of heart failure (HF) self-care was published in 2008, we have learned much about how and why patients with HF take care of themselves. This knowledge was used to revise and update the theory.

OBJECTIVE

The purpose of this article was to describe the revised, updated situation-specific theory of HF self-care.

RESULT

Three major revisions were made to the existing theory: (1) a new theoretical concept reflecting the process of symptom perception was added; (2) each self-care process now involves both autonomous and consultative elements; and (3) a closer link between the self-care processes and the naturalistic decision-making process is described. In the revised theory, HF self-care is defined as a naturalistic decision-making process with person, problem, and environmental factors that influence the everyday decisions made by patients and the self-care actions taken. The first self-care process, maintenance, captures those behaviors typically referred to as treatment adherence. The second self-care process, symptom perception, involves body listening, monitoring signs, as well as recognition, interpretation, and labeling of symptoms. The third self-care process, management, is the response to symptoms when they occur. A total of 5 assumptions and 8 testable propositions are specified in this revised theory.

CONCLUSION

Prior research illustrates that all 3 self-care processes (ie, maintenance, symptom perception, and management) are integral to self-care. Further research is greatly needed to identify how best to help patients become experts in HF self-care.