Medication and dietary compliance beliefs in heart failure

Development of Core Educational Content for Heart Failure Patients in Transition from Hospital to Home Care: A Delphi Study

Heart failure (HF) patients should be systematically educated before discharge on how to manage with standard written materials for patient self-management. However, because of the absence of readily available written materials to reinforce their learned knowledge, patients with HF feel inadequately informed in terms of the discharge information provided to them. This study aimed to develop core content to prepare patients with HF for transition from hospital to home care. The content was validated by expert panelists using Delphi methods. Nineteen draft items based on literature review were developed. We established a consensus on four core sections, including 47 categories and 128 subcategories through the Delphi survey: (1) understanding HF (five categories and 23 subcategories), (2) HF medication (19 categories and 45 subcategories), (3) HF management (20 categories and 47 subcategories), and (4) HF diary (three categories and 13 subcategories). Each section provided easy-to-understand educational contents using cartoon images and large or bold letters for older patients with HF. The developed core HF educational contents showed high consensus between the experts, along with clinical validity. The contents can be used as an educational booklet for both planning discharge education of patients with HF and for post-discharge management when transitioning from hospital to home. Based on this study, a booklet series for HF patients was first registered at the National Library of Korea. Future research should focus on delivering the core content to patients with HF in convenient and accessible format through various media.

Dietary Sodium Restriction for Heart Failure: A Systematic Review of Intervention Outcomes and Behavioral Determinants

The 1500 mg/d dietary sodium restriction commonly recommended for patients with heart failure has recently been questioned. Poor adherence to sodium-restricted diets makes assessing the efficacy of sodium restriction challenging. Therefore, successful behavioral interventions are needed. We reviewed sodium restriction trials and descriptive studies of sodium restriction to: 1) determine if sodium restriction was achieved in interventions among heart failure patients; and 2) characterize predictors of successful dietary sodium restriction. Among 638 identified studies, 10 intervention trials, and 25 descriptive studies met inclusion criteria. We used content analysis to extract information about sodium restriction and behavioral determinants of sodium restriction. Dietary sodium was reduced in 7 trials; none achieved 1500 mg/d (range 1938-4564 mg/d). The interventions implemented in the interventional trials emphasized knowledge, skills, and self-regulation strategies, but few addressed the determinants correlated with successful sodium restriction in the descriptive studies (eg, social/cultural norms, social support, taste preferences, food access, self-efficacy). Findings suggest that incorporating determinants predictive of successful dietary sodium restriction may improve the success of interventional trials. Without effective interventions to deploy in trials, the safety and efficacy of sodium restriction remains unknown.

TAS2R38 PAV Haplotype Predicts Vegetable Consumption in Community-Dwelling Caucasian Adults at Risk for Cardiovascular Disease

INTRODUCTION

A heart-healthy diet might reduce cardiovascular disease (CVD) risk. Genetic variants that affect taste are associated with food choices. This study aims to investigate the associations of the TAS2R38 haplotype with consumption of sodium, sugar, saturated fats, and vegetables.

HYPOTHESIS

We hypothesized that, compared to people who are alanine-valine-isoleucine (AVI) homozygous for the TAS2R38 gene, those who are heterozygous or homozygous for the proline-alanine-valine (PAV) haplotype would have (a) a higher intake of sodium, sugar, and saturated fat, and (b) a lower vegetable intake.

METHODS

DNA from participants at risk for CVD was genotyped, and participants were assigned to groups by haplotype. Intake for sodium, sugar, saturated fat, and vegetables was assessed using the Viocare Food Frequency Questionnaire. Intake was categorized as higher versus lower consumption, divided at the median, and examined by logistic regressions. All models controlled for age, sex, smoking status, body mass index, education level, and financial status.

RESULTS

The 175 participants had a mean age of 52 ± 13 years, 72.6% were female, 100% were Caucasian, 89.1% were overweight or obese, and 82.9% were nonsmokers. Participants with one or two PAVs were grouped together, as PAV is the dominant gene, and comprised a majority of the sample (80.6%). Haplotype did not predict intake of sodium, sugar, or saturated fats. Compared to AVI homozygotes, participants with PAV homozygous or heterozygous haplotype had lower odds of being in the higher vegetable intake group (95% CI [0.17, 0.92], p = .032).

CONCLUSIONS

PAV haplotype predicted lower consumption of vegetables. Variants of taste-related genes appear to play a role in food choices.

Concurrent validity and acceptability of health literacy measures of adults hospitalized with heart failure

OBJECTIVES

To test concurrent validity and acceptability of the Single Item Literacy Screener (SILS), Test of Functional Health Literacy (S-TOFHLA) and the Newest Vital Sign (NVS) in hospitalized adults with heart failure (HF).

BACKGROUND

Health literacy is not routinely evaluated in adults hospitalized with HF. Low health literacy is linked to poor HF self-care and hospital readmissions.

METHODS

SILS, NVS and S-TOFHLA were completed by 85 patients with HF. Measures were examined for internal consistency reliability and acceptability. The NVS and S-TOFHLA were correlated with the SILS to establish concurrent validity.

RESULTS

The NVS (α = 0.70) and S-TOFHLA (α = 0.88) were reliable. The SILS significantly correlated with the S-TOFHLA (r = -0.308). The S-TOFHLA (M = 6.16) and NVS (M = 6.10) were acceptable measures.

CONCLUSION

The S-TOFHLA and NVS were reliable and acceptable measures of health literacy in hospitalized HF population. The SILS correlated with the S-TOFHLA and may predict low health literacy when hospitalized. NVS total scores in this population aligned with the recent NAAL survey. Hospitalized adults with HF agreed to share the health literacy scores with their providers.

How do patients' values influence heart failure self-care decision-making?: A mixed-methods systematic review

BACKGROUND

Values are central to ethical and effective nursing and health care. However, in relation to heart failure, an extremely common and burdensome syndrome, the role that patients' values have in influencing self-care is poorly understood.

METHODS

A mixed methods systematic review was conducted using a critical meta-narrative synthesis approach to synthesizing qualitative and qualitized data. Nine databases were searched (14 March 2014). To be included in the review, studies had to contain data on heart failure patients' values and self-care behaviors, include adults aged ≥18 years with symptomatic heart failure, and be published ≥2000 as full articles or theses. Study quality was assessed using a mixed-methods appraisal tool.

FINDINGS

Of 6467 citations identified, 54 studies were included (30 qualitative, 8 mixed methods, and 16 quantitative; 6045 patients, 38 lay caregivers, and 96 health care professionals). The synthesis identified multiple bi-directional interactions between heart failure, patients' values, and self-care. Patients are motivated by self-related and other-related values. Self-related values are tied directly to intimate personal feelings (self-direction, pleasure, and being healthy) or related to individuals' life circumstances (maintaining a healthy lifestyle and financial balance). Other-related values, which are fundamentally socially-based, are related to benefits received from society (social recognition and socialization) and social obligations (responsibility, observing traditions, and obedience). For each decision, several values are involved; some are incompatible and some are in conflict. Patients make their self-care decision based on the values they prioritize and those that are blocked.

CONCLUSION

Values are integral to how patients approach and undertake HF self-care. These values both affect and respond to this self-care and the severity of HF symptoms. Values extend to those relating to the self and others and incorporate a range of personal, life, and social dimensions. Values cannot be assumed to be fixed, normative or similar to those held by nurses and other health professionals. Future interventions to improve HF self-care must address and respond to the complexity of patients' values and how they influence patient behavior in undertaking heart failure self-care.

Predictors of delay in heart failure patients and consequences for outcomes

Persons with heart failure (HF) symptoms delay up to 7 days before seeking treatment. Delay can result in worse symptoms and potentially impact outcomes. The purpose of this review was to describe predictors and outcomes of delay in HF patients. Demographic factors, increased symptom number, social factors, greater HF knowledge, lower anxiety, and depression predicted increased delay. HF patients had difficulty recognizing and interpreting symptoms of HF. Results are conflicting related to symptom pattern, time of care seeking, and history of HF as predictors of delay. The only outcome predicted by delay was length of stay with those delaying longer reporting longer lengths of stay. Future research related to delay should include theoretical frameworks and larger, more ethnically diverse samples from multiple sites and link delay to outcomes. Valid and reliable instruments are needed to measure delay and related factors. HF education should include supportive others.

Using growth mixture modeling to identify classes of sodium adherence in adults with heart failure

BACKGROUND

The prevention of fluid retention is important to reduce hospitalizations in patients with heart failure (HF). Following a low-sodium diet helps to reduce fluid retention.

OBJECTIVE

The primary objective of this study was to use growth mixture modeling to identify distinct classes of sodium adherence-characterized by shared growth trajectories of objectively measured dietary sodium. The secondary objective was to identify patient-level determinants of the nonadherent trajectory.

METHODS

This was a secondary analysis of data collected from a prospective longitudinal study of 279 community-dwelling adults with previously or currently symptomatic HF. Growth mixture modeling was used to identify distinct trajectories of change in 24-hour urinary sodium excretion measured at 3 time points over 6 months. Logistic modeling was used to predict membership in observed trajectories.

RESULTS

The sample was predominantly male (64%), had a mean age of 62 years, was functionally compromised (59% New York Heart Association class III), and had nonischemic HF etiology. Two distinct trajectories of sodium intake were identified and labeled adherent (66%) and nonadherent (34%) to low-sodium diet recommendations. Three predictors of the nonadherent trajectory were identified, confirming our previous mixed-effect analysis. Compared with being normal weight (body mass index <25 kg/m2), being overweight and obese was associated with a 4-fold incremental increase in the likelihood of being in the nonadherent trajectory (odds ratio [OR], 4.63; 95% confidence interval [CI], 1.66-12.91; P < .002). Being younger than 65 years (OR, 4.66; 95% CI, 1.04-20.81; P = .044) or having diabetes (OR, 4.15; 95% CI, 1.29-13.40; P = .016) were both associated with more than 4 times the odds of being in the nonadherent urine sodium trajectory compared with being older than 65 years or not having diabetes, respectively.

CONCLUSIONS

Two distinct trajectories of sodium intake were identified in patients with HF. The nonadherent trajectory was characterized by an elevated pattern of dietary sodium intake shown by others to be associated with adverse outcomes in HF. Predictors of the nonadherent trajectory included higher body mass index, younger age, and diabetes.

Health Beliefs Related to Salt-Restricted Diet in Patients on Hemodialysis: Psychometric Evaluation of the Turkish Version of the Beliefs About Dietary Compliance Scale

PURPOSE

The aim of this study was to evaluate the reliability and validity of the Turkish version of the Beliefs about Dietary Compliance Scale (BDCS-T).

METHODS

This methodological study enrolled a sample of 140 patients. Data were collected by using a questionnaire form, the BDCS-T, and the Dialysis Diet and Fluid Restrictions Nonadherence Questionnaire. Descriptive statistics, the one-sample Kolmogorov-Smirnov test, Mann-Whitney U test, correlation coefficients, and psychometric tests were used for the analysis of data.

RESULTS

The factor analysis confirmed that the BDCS-T had a two-factor structure (perceived benefits and perceived barriers) explaining 58.7% of the total variance. The BDCS-T had acceptable internal consistency (Cronbach's alpha coefficients: perceived benefits = .91; perceived barriers = .66), test-retest reliability (intraclass correlation coefficients: perceived benefits = .93; perceived barriers = .79), concurrent validity with the Dialysis Diet and Fluid Restrictions Nonadherence Questionnaire scores, and known group validity with intensity of diet nonadherence.

CONCLUSIONS

The BDCS-T was found to be a reliable and valid tool for assessing the beliefs related to salt-restricted diet in patients on hemodialysis.

IMPLICATIONS FOR PRACTICE

Nurses are recommended to make tailored interventions by taking the benefits and barriers that the patients perceive toward low-salt dietary adherence into account.

A trial of family partnership and education interventions in heart failure

BACKGROUND

Lowering dietary sodium and adhering to medication regimens are difficult for persons with heart failure (HF). Because these behaviors often occur within the family context, this study evaluated the effects of family education and partnership interventions on dietary sodium (Na) intake and medication adherence (MA).

METHODS AND RESULTS

HF patient and family member (FM) dyads (n = 117) were randomized to: usual care (UC), patient-FM education (PFE), or family partnership intervention (FPI). Dietary Na (3-day food record), urinary Na (24-hour urine), and MA (Medication Events Monitoring System) were measured at baseline (BL) before randomization, and at 4 and 8 months. FPI and PFE reduced urinary Na at 4 months, and FPI differed from UC at 8 months (P = .016). Dietary Na decreased from BL to 4 months, with both PFE (P = .04) and FPI (P = .018) lower than UC. The proportion of subjects adherent to Na intake (≤2,500 mg/d) was higher at 8 months in PFE and FPI than in UC (χ(2)(2) = 7.076; P = .029). MA did not differ among groups across time. Both FPI and PFE groups increased HF knowledge immediately after intervention.

CONCLUSIONS

Dietary Na intake, but not MA, was improved by PFE and FPI compared with UC. The UC group was less likely to be adherent with dietary Na. Greater efforts to study and incorporate family-focused education and support interventions into HF care are warranted.

[Compliance to treatment in heart failure patients in Lomé]

BACKGROUND

The incidence and prevalence rates of the heart failure in the world approach epidemic proportions. The evaluation of the follow-up of the treatment of heart failure can allow the setting up of strategies to reduce the frequency of decompensations and improve the quality of life of these patients.

OBJECTIVES

To estimate the compliance to treatment and factors liable to influence it in Togolese patients suffering from heart failure.

PATIENTS AND METHODS

This study was carried out from January 1st, 2008 to June 30th, 2009 in the department of cardiology of the university teaching hospital Campus in Lomé and included prospectively, patients with chronic heart failure hospitalized for acute decompensation and of which the heart failure was diagnosed and treated for at least 3 months. Questionnaires were filled to estimate the compliance to medication, to diet, as well as knowledge of the patients on their disease and their relationship with their doctor and their family.

RESULTS

In the 103 patients included, we noticed no good compliance to medication; there were 74.7% of bad compliance to medication, 47.3% of good compliance to diet; 62.1% of patients had enough knowledge on their disease, 29.1% considered that their doctor did not grant them enough time; 57.3% estimated to have no necessary support of their family. Bad compliance to treatment was correlated to the existence or not of a health care insurance (OR=115.5; 95% CI=21.51-620.08; P<0.0001); this difference persisted after adjusting for age, sex and monthly income (OR=99.65; 95% CI=18.87-587.21; P=0.001). Bad compliance was not associated with monthly income (OR=0.93; 95% CI=0.37-2.28; P=0.944); it was neither influenced by traditional therapy (OR=1.58 95% CI=0.64-3.91; P=0.43), nor recovery prayers (OR=1.6; 95% CI=0.62-4.13; P=0.45), nor frequency of tablets intake (≥3 intake day), OR=0.169; 95% CI=0.05-0.49; P=0.43.

CONCLUSION

The compliance to medication in Togolese heart failure patients was very low and essentially correlated to the absence of health care insurance.

A qualitative analysis of perceptions and barriers to therapeutic lifestyle changes among homeless hypertensive patients

BACKGROUND

Homeless individuals have higher rates of hypertension when compared to the general population. Therapeutic lifestyle changes (TLCs) have the potential to decrease the morbidity and mortality associated with hypertension, yet TLCs can be difficult for homeless persons to implement because of competing priorities.

OBJECTIVES

To identify: (1) Patients' knowledge and perceptions of hypertension and TLCs and (2) Barriers to implementation of TLCs.

METHODS

This qualitative study was conducted with patients from an urban health care for the homeless center. Patients ≥18 years old with a diagnosis of hypertension were eligible. Three focus groups were conducted at which time saturation was deemed to have been reached. Focus group sessions were audio recorded and transcribed for data analysis. A systematic, inductive analysis was conducted to identify emerging themes.

RESULTS

A total of 14 individuals participated in one of the 3 focus groups. Most were female (n=8) and African-American (n=13). Most participants were housed in a shelter (n=8). Others were staying with family or friends (n=3), living on the street (n=2), or had transitioned to housing (n=1). Participants had a mixed understanding of hypertension and how TLCs impacted hypertension. They were most familiar with dietary and smoking recommendations and less familiar with exercise, alcohol, and caffeine TLCs. Participants viewed TLCs as being restrictive, particularly with regard to diet. Family and friends were viewed as helpful in encouraging some lifestyle changes such as healthy eating, but less helpful in having a positive influence on quitting smoking. Participants indicated that they often have difficulty implementing lifestyle changes because of limited meal choices, poor access to exercise equipment, and being uninformed about recommendations.

CONCLUSIONS

Despite the benefits of TLCs, homeless individuals experience unique challenges to implementing TLCs. Future research should focus on developing and testing interventions that facilitate TLCs among homeless persons. The findings from this study should assist health care practitioners, including pharmacists, with providing appropriate and effective education.

An exploration of the relationship between adherence with dietary sodium restrictions and health beliefs regarding these restrictions in Irish patients receiving haemodialysis for end-stage renal disease

AIMS

To measure adherence levels with dietary restrictions in Irish patients with end-stage renal disease receiving haemodialysis and to explore the relationships between adherence with dietary sodium restrictions and health beliefs in relation to following these restrictions in this group.

BACKGROUND

Non-adherence to medical regimes is an important healthcare issue and an ever-present problem, particularly in patients with a chronic illness. The literature revealed a lack of studies measuring adherence with the sodium component of the renal dietary restrictions and associated factors; despite the fact that adherence with sodium restrictions is essential to the optimal management of end-stage renal disease. Furthermore, despite increased emphasis on 'the patients' view' in healthcare no study to date has contextualised health beliefs and adherence in end-stage renal disease from an Irish perspective.

DESIGN

A quantitative, descriptive, correlational design was employed using the Health Belief Model as a theoretical framework.

METHODS

A convenience sample (n = 79) was recruited from the haemodialysis units of a large hospital. Data were collected using self-report questionnaires. Data were analysed using descriptive and correlational statistics.

RESULTS

Non-adherence with dietary restrictions was a problem among a proportion of the sample. Greater adherence levels with dietary sodium restrictions were associated with greater 'perceived benefits' and fewer 'perceived barriers.'

CONCLUSION

For the Irish patient, beliefs in relation to following a low sodium diet significantly affected adherence levels with this diet. This is an important finding as delineating key beliefs, particularly key barriers, facilitates an increased understanding of non-adherence for nurses.

RELEVANCE FOR CLINICAL PRACTICE

These findings have implications for the care of patients with end-stage renal disease in that they can provide guidance in terms of developing interventions designed to improve adherence.

Unraveling the mechanisms for heart failure patients' beliefs about compliance

BACKGROUND

Compliance with medication, diet, and monitoring symptoms is a problem in heart failure (HF) patients. Noncompliance can lead to worsening symptoms and is associated with personal beliefs about compliance. To intervene effectively, knowledge of factors related to patients' beliefs about compliance is needed.

OBJECTIVES

The aims of this study are to: (1) gain insight into patients' beliefs about compliance; (2) examine the association of demographic variables and depressive symptoms to beliefs; (3) assess compliance with medication, diet, and daily weighing; and (4) examine the association of compliance to patients' beliefs.

METHODS

Nine hundred fifty-four HF patients completed questionnaires on beliefs about medication and diet; 297 patients also completed a questionnaire on beliefs about symptom monitoring. Most important barriers and benefits were assessed as well as differences in beliefs between subgroups and the association between compliance and beliefs.

RESULTS

The most important barriers were diuresis during the night (57%), the taste of food (51%), and limited ability to go out (33%). A barrier related to failure to weigh daily was forgetfulness (26%). Patients with depressive symptoms and patients with a low level of HF knowledge experienced more barriers to compliance with the HF regimen. Self-reported compliance with medication was almost 99%, compliance with diet 77%, and with daily weighing 33%.

CONCLUSIONS AND IMPLICATIONS

In order to improve compliance, it is important that interventions should be directed to those patients who experience more barriers to compliance, such as patients with depressive symptoms and patients with a low level of knowledge on the HF regimen. Improvement of knowledge, therefore, will remain an important issue in HF management programs.

Development and testing of the Survey of Illness Beliefs in Heart Failure tool

This study establishes reliability and construct validity of the Survey of Illness Beliefs in Heart Failure (HF) tool, which measures the accuracy and certainty of illness beliefs people have about HF. Factor analysis produced a 2-component structure of 14 items that revealed accurate and inaccurate illness beliefs (alpha=0.87 and 0.71, respectively). Construct validity was supported with significantly greater accuracy in illness belief scores in patients evaluated or listed for heart transplantation or enrolled in an HF research study (P=.008 and .02, respectively). The reliability and validity of the tool is sufficient to support its use in clinical research.