A Biomarker of Stress and Self-reported Caregiving Distress Predict Poor Quality of Life in Family Caregivers of Patients With Heart Failure.

BACKGROUND: Family caregivers are at a high risk for low quality of life due to caregiving-related stress. Caregivers' stress is commonly assessed using self-reported measures, which reflect relatively subjective and long-term stress related to caregiving, but objective biological markers of stress are rarely used for caregivers. The purposes of this study were (1) to determine whether caregiver characteristics were associated with stress assessed using a stress biomarker (serum cortisol) and a self-reported caregiving distress measure (Caregiver Burden Inventory) and (2) to determine the predictability of both stress measures for quality of life in caregivers of patients with heart failure. METHODS: Taiwanese family caregivers (N = 113; mean age, 54.5 years; 70.8% female) of patients with heart failure completed surveys including caregiving distress and quality of life measured by the Caregiver Burden Inventory and the Short Form-36 (physical and psychological well-being subscales), respectively, and provided blood samples for serum cortisol. Independent t tests, correlation, and hierarchical regression were conducted. RESULTS: Single caregivers had higher serum cortisol levels than married caregivers (P = .002). Men had significantly higher serum cortisol levels than women (P = .010), but men reported lower caregiving distress than women (P = .049). Both serum cortisol (ß = -0.32, P = .012) and caregiving distress (ß = -0.29, P = .018) were significant predictors of quality of life in the physical well-being scale while controlling for caregivers' characteristics and depressive symptoms. Serum cortisol (ß = -0.28, P = .026) and caregiving distress (ß = -0.25, P = .027) also predicted quality of life in the psychological well-being scale. CONCLUSIONS: Serum cortisol and self-reported caregiving distress have similar predictability for quality of life in family caregivers of patients with heart failure. Reducing stress and caregiving distress is critical to improving quality of life in this population.

[Advance Decision Behavioral Intention and Related Factors in Adults Living in the Community].

BACKGROUND: Improvements in medical science and technology have increased the average number of years that older adults survive with impaired quality of life. Understanding behavioral intentions and related factors affecting advance decision (AD) decision-making can help medical professionals improve the decision-making ability of patients, allowing patients and their family members to make better medical decisions that reduce ineffective medical treatments, improve quality of life, and facilitate a good death. PURPOSE: This study was developed to explore behavioral intentions and related factors during the process of AD decision-making among community adults. METHODS: A cross-sectional study design was used in this study. The knowledge, attitudes, and behavioral intentions regarding AD decisions, spiritual health, and social support were measured in a convenience sample using physical or internet-based questionnaires. Data were analyzed in SPSS 21.0 using descriptive and independent samples t-tests, one-way ANOVA, Pearson correlation, and multiple regression analysis. RESULTS: Three hundred and seventy-seven community adults participated in this research (50.57 years old, SD = 13.39; 58.4% female). The average level of AD-related behavioral intention was found to be high, with high numbers of participants indicating that they would refuse endotracheal intubation (4.13, SD = 0.92), extracorporeal membrane oxygenation (4.09, SD = 0.95), extracorporeal heart massage (4.08, SD = 0.95), and defibrillation (4.08, SD = 0.98) if they were in a permanent vegetative state in the future. The important predictors of AD behavioral intention included gender, written expression of end-of-life medical decision-making, participation in the patient self-rights law and advance decision publicity lectures, having an advance decision attitude, and social support (R2 = 40.1%, p < .001). CONCLUSIONS / IMPLICATIONS FOR PRACTICE: A high level of AD-related behavioral intention was found in the sample and several important factors that influence related behaviors were identified. These results provide an important reference for related public policymakers to increase the percentage of older patients participating in advance directive decision-making.

Psychometric Validation of the Mandarin Version Control Attitudes Scale-Revised Questionnaire in Taiwanese Patients With Heart Failure.

BACKGROUND: Perceived control is an important construct in patients with heart failure (HF) and related to improved health outcomes. There is no reliable and valid instrument available for the measurement of perceived control in Taiwan, limiting the practical application of the construct in research and clinical practice. PURPOSE: The aim of this study was to translate, culturally adapt, and validate the Mandarin version of the Control Attitudes Scale-Revised (Mandarin CAS-R) in Taiwanese patients with HF. METHODS: The Mandarin CAS-R was developed using a translation/back-translation process and semantic equivalence; importantly, conceptual equivalence was also examined. Reliability was assessed using Cronbach's α to determine internal consistency, and item homogeneity was assessed using item-total and interitem correlations. Construct validity was examined using exploratory factor analysis and hypothesis testing for known associations. RESULTS: Three hundred forty-eight patients with HF were included, and 5-item Mandarin CAS-R was validated in the study. The model performance was acceptable with all factor loadings greater than 0.70, a variance explained of 55.2%, and a Cronbach's α of .79. The 5-item Mandarin CAS-R was associated with higher levels of self-care maintenance (ß = 0.395, P < .001), management (ß = 0.219, P < .01), and confidence (ß = 0.524, P < .001); perceived social support (ß = 0.246, P < .001); and depression (ß = -0.125, P < .05). CONCLUSIONS: This study provided evidence of the reliability and validity of the 5-item Mandarin CAS-R as a measure of perceived control in Taiwanese patients with HF.

[Construction and Application of Innovative Education Technology Strategies in Nursing].

The evolution of information and communication technologies has deeply impacted education reform, promoted the development of digital-learning models, and stimulated the development of diverse nursing education strategies in order to better fulfill needs and expand in new directions. The present paper introduces the intelligent-learning resources that are available for basic medical science education, problem-based learning, nursing scenario-based learning, objective structured clinical examinations, and other similar activities in the Department of Nursing at Chang Gung University of Science and Technology. The program is offered in two parts: specialized classroom facilities and cloud computing / mobile-learning. The latter includes high-fidelity simulation classrooms, online e-books, and virtual interactive simulation and augmented reality mobile-learning materials, which are provided through multimedia technology development, learning management systems, web-certificated examinations, and automated teaching and learning feedback mechanisms. It is expected that the teaching experiences that are shared in this article may be used as a reference for applying professional wisdom teaching models into nursing education.

[Using Interdisciplinary Cooperation to Improve the Rate of Proper Performance of a Hand Exercise Among Hemodialysis Patients With Arteriovenous Fistula Construction].

BACKGROUND & PROBLEMS: Patients who undergo new arteriovenous fistula (AVF) construction as part of their hemodialysis treatment program are required to perform hand exercises properly in order to maintain AVF function. However, poor performance of these hand exercises currently results in the failure of many patients to preserve AVF function. PURPOSE: To increase the rate of performing this hand exercise properly from 55% to 80%. RESOLUTION: A comprehensive investigation identified the following five main problems: (a) Insufficient muscular endurance; (b) Resistance was not labeled on the ball; (c) Difficulties with maintaining a grip on the ball during the exercise; (d) Lack of standardized education procedures; and (e) Nurses lack latest knowledge on the hand exercise. The strategies used to improve the situation included: (a) Interdisciplinary team cooperation with physiotherapists to design individualized resistance training regimens; (b) Exercise tool improvement; (c) Standardized AVF care; (d) Continuous education for nursing staffs; and (e) Seed teacher program for hand exercise. RESULTS: The rate of proper hand exercise performance increased from 55% to 93%. CONCLUSIONS: This nursing project involved an interdisciplinary team that included physiotherapists in order to successfully improve the rate at which the hand exercise was performed properly. This positive experience may be applied to other hemodialysis departments in the treatment of patients with AVF.

Validation of the Clinical COPD Questionnaire in Taiwan.

Health status improvement is a critical treatment goal for physicians managing chronic obstructive pulmonary disease (COPD). Numerous instruments to measure the disease-specific health-related quality of life (HRQOL) for patients with COPD have been used in daily clinical practice. The Clinical COPD Questionnaire (CCQ) is one of these recommended by the Global Initiative for Chronic Obstructive Lung Disease (GOLD). This study examined the psychometric properties of the CCQ in patients with COPD in Taiwan. A descriptive, cross-sectional design was conducted. Data were collected in a secondary care unit. We administered the CCQ, the modified Medical Research Council (mMRC) dyspnea scale, and the 12-item Short Form Health Survey (SF-12) for patients with COPD. Reliability was assessed using Cronbach's alpha and item-total correlation coefficients. Construct validity was assessed using confirmatory factor analysis (CFA) and testing the hypothesis that severity of dyspnea measured using the mMRC dyspnea scale is associated with the CCQ scores. Convergent validity was assessed by testing the correlation between the CCQ and the SF-12. Discriminant validity was assessed to differentiate among the classifications of COPD Groups A to D. A total of 114 subjects were recruited in the study. Cronbach's alpha was high (0.90) for the total score of the CCQ. Significant correlations were found between the CCQ scores and those of the mMRC dyspnea scale (ρ = 0.67) and domains of the SF-12 (ρ = -0.44 to -0.75). Furthermore, the CCQ scores showed a significant difference among the classifications of COPD Groups A to D. CFA confirmed the construct validity, with a good model fit. Good to excellent psychometric properties of the Chinese Version CCQ were demonstrated in the study. Wide usage of the Chinese Version CCQ for Taiwanese COPD patients can be recommended in daily clinical practice or clinical trials.

[The Effects of a Mobile Application Social Support Program on Postpartum Perceived Stress and Depression].

BACKGROUND: Postpartum depression is a common health problem for women following childbirth. Using effective social support to reduce postpartum depression has become an important issue. The current popularity of smartphones offers new possibilities for interventional methods. PURPOSE: To investigate the effects of mobile-application-based social support programs on perceived stress and postpartum depression in postpartum women. METHODS: The present study employs an experimental research design. 126 smartphone users at 36 weeks' gestation were assigned randomly to the intervention (n = 61) or the control (n = 65) group. The intervention group received a social-support intervention via the mobile application Line twice per week for a period of 4 weeks after childbirth. The control group did not receive the intervention. The Perceived Stress Scale-Chinese version and Edinburg Postnatal Depression Scale were used to evaluate the outcome. RESULTS: Participants in the intervention group had significantly lower perceived stress (F = 27.25, p < .001) and postpartum depression (F = 35.73, p < .001) than their control group peers. CONCLUSIONS: Social-support programs that are delivered via mobile applications such as Line may significantly reduce the perceived stress and postpartum depression of women during the early postpartum period. The results support the implementation of mobile-application-based social support programs in postpartum care.

[The use of music intervention in nursing practice for elderly dementia patients: a systematic review].

BACKGROUND: Although music therapy is now applied widely as an intervention for elderly dementia patients, the effectiveness of this therapy is not yet well understood. PURPOSE: This study conducts a systematic review of clinical studies that address the effectiveness of music therapy in elderly dementia patients. METHODS: Databases including MEDLINE, Cochrane Library, ProQuest, EBMR, CINAHL, and CEPS were searched for relevant articles published between 2004 and 2013 using the key words "music" or "music therapy" with "dementia". An initial 272 original articles were identified. Applying inclusion criteria and excluding duplications left 18 articles that used randomized controlled trials to assess the effectiveness of music therapy in elderly participants for further analysis and synthesis. RESULTS: Music therapy was found effective at improving cognitive functions, mental symptoms, and eating problems. However, this therapy was not found effective at improving irritable behavior. Type of music and method of presentation were the most important factors affecting results. Most studies (61.1%) used songs familiar to ÷ favored by the participants; most studies delivered 30-minute interventions twice weekly; and most studies used a therapy duration of 6 hours. Finally, most studies (77.8%) had music therapy sessions performed by either music therapists or trained healthcare providers. CONCLUSIONS / IMPLICATIONS FOR PRACTICE: This study supports that music therapy is an effective nursing intervention for elderly dementia patients. The authors hope that findings are a helpful reference for clinical nurses to develop practical music therapy procedures and protocols.

[A nursing case experience using Levine's conservation model to provide sepsis care].

Sepsis is a systemic inflammation caused by severe infection. It is a condition that is life-threatening, progresses rapidly, and affects multiple system functions. An evidence-based medical sepsis bundles model has been used for sepsis care in clinic practice. Therefore, a holistic nursing care protocol for patients with sepsis is needed to improve medical outcomes. This case study describes a nursing experience using Levine's Conservation Model to care for a patient with sepsis. Data were collected using physical assessment, medical chart reviews, written communications with the patient, interviews patient family members, and observing the patient during intensive care hospitalization from June 10th, 2011 through July 5th, 2011. Levin's Conservation Model, used as the nursing guideline, successfully identified patient issues including failure to conserve energy, structural, personal and social integrity. Interventions included: (1) sepsis bundles and early goal directed therapy to reduce patient energy expenditure; (2) prevention of infection to maintain structural function; and (3) enhancement of self-esteem, privacy, family cohesion, and social activities to maintaining personal and social integrity functions. The interventions helped the case adapt successfully to the sepsis-related imbalance. This case report provides a valuable nursing care experience as a reference for similar sepsis cases in the future.

Predicting Trends in Dyspnea and Fatigue in Heart Failure Patients' Outcomes.

BACKGROUND: Dyspnea and fatigue are distressing symptoms commonly seen in heart failure (HF) patients, and are closely related to patients' disease trajectory of contributes. Identifying the effect of symptom trends on disease outcomes is important to develop effective symptom management interventions in HF patients. METHODS: One hundred and twenty-two patients were recruited. Dyspnea, fatigue, clinical characteristics, and disease outcomes were measured at the baseline assessment, three months, and 12 months. Latent class growth model and Kaplan-Meier survival analysis were used on dyspnea and fatigue to examine the relationship of disease trajectories and effects on disease outcomes. RESULTS: A total of 122 patients were examined (mean age 62.8 ± 13.0 yrs; 79% male; 39% NYHA III/IV; 48% preserved systolic function HF). Three groups based on HF patients' dyspnea-fatigue trends were identified as "constant good," "recovery," and "getting worse." The cumulative incidence of a first cardiac event in both dyspnea and fatigue groups yielded similar results. The quality of life score for the getting worse group was significantly higher than that of the constant good and recovery groups. The result of the log-rank test was significant (χ(2) = 8.11, p = 0.017). Post hoc comparison showed that the prognosis status of the constant good group was better than that of the getting worse (p = 0.046) and recovery groups (p = 0.020), while getting worse and recovery groups did not differ in prognosis status (p = 0.30). CONCLUSIONS: The results demonstrate the value of tracking symptoms over time to determine symptom trajectories as well as severe baseline (even with improvements at follow-ups) or increased fatigue over time were related to a worse event-free survival as compared with low but stable fatigue. KEY WORDS: Disease outcome; Kaplan-Meier survival analysis; Symptom trajectory.

Correlations among lean tissue index, physical activity, clinical parameters, diet quality, and nutritional status in patients receiving haemodialyses.

INTRODUCTION: Poor diet quality and malnutrition accelerate protein and energy depletion. This can result in a diminished lean tissue index (LTI) and an inability to perform daily activities, both of which increase the risk of falls and affect the quality of life. OBJECTIVE: This study investigated the correlations among LTI, physical activity (PA), clinical parameters, diet quality, and nutritional status. METHODS: A cross-sectional study design was employed. Participants in stable conditions receiving haemodialyses were enroled. LTI was measured using a body composition monitor. Three-day dietary records and demographic and clinical parameters were collected. RESULTS: In total, 104 patients receiving haemodialyses were recruited (53.8% men, aged 57.7 ± 11.78 years; dialysis duration, 7.3 ± 6.04 years). LTI was not associated with diet quality; LTI was positively correlated with sex and negatively correlated with age, dialysis duration, and fat tissue index (FTI); and lean tissue index was positively correlated with PA. Among patients with a normal LTI, the odds ratio for low-FTI was 31.04 times higher than that for high-FTI. In total, 80.8% of the participants had poor diet quality, which was mainly attributed to their excessive intake of saturated fatty acids and insufficient fruit intake. CONCLUSIONS: Although diet quality was unrelated to the LTI, the results indicated that most patients receiving haemodialyses had poor diet quality. Therefore, this topic merits further investigation.

Examining symptom trajectories that predict worse outcomes in post-CABG patients.

BACKGROUND: Coronary artery bypass grafting is one of the most common interventional revascularisation procedures used to treat coronary artery disease worldwide. With a wide variability in postoperative cardiac symptoms, identification of symptom trajectories during the 3-month postoperative recovery period may improve clinicians' abilities to support symptom recovery. AIMS: To identify distinct trajectories of cardiac symptoms seen over time in a cohort of patients during the 3-month post-coronary artery bypass grafting period, and determine clinical characteristics associated with different symptom trajectories postoperatively. METHODS: A prospective trial used the cardiac symptom survey to determine patient symptoms at baseline prior to surgery, and at 1 week, 6 weeks and 3 months following coronary artery bypass grafting. A latent class growth model and multivariate logistic regression analyses were used. RESULTS: Data were obtained from patients ( N=198) undergoing coronary artery bypass grafting in six medical centres of Taiwan, through patient medical records and interviews. Based on their frequency, trajectories were explored for the six most common postoperative symptoms including angina, dyspnoea, fatigue, depression, sleep problems and anxiety. We identified two to three distinct classes of trajectories for each symptom. Age, longer intensive care unit stay, fewer vessels bypassed, off-pump coronary artery bypass grafting, smoking history and lack of regular exercise were associated with worse symptom outcome trends over time. CONCLUSIONS: Using this unique trajectories-based research method, we are able to achieve a better understanding of symptom recovery patterns over time among coronary artery bypass grafting patients. Recognising risk factors and potential recovery patterns prior to surgery may allow healthcare providers to deliver targeted discharge planning and individualised care after coronary artery bypass grafting.

Validation of Chinese version of the Modified Pulmonary Functional Status and Dyspnea Questionnaire with heart failure patients in Taiwan.

BACKGROUND: Dyspnea is a distressing and functionally limiting symptom that patients with heart failure commonly experience. A valid instrument to quantify dyspnea for comparison of groups and for illness management is important. OBJECTIVE: To validate the Chinese version of the Modified Pulmonary Functional Status and Dyspnea Questionnaire. METHODS: The Chinese version was developed by using translation and back translation and was tested in Taiwan in 88 patients who had heart failure but no pulmonary disease or comorbid conditions limiting physical function. Data on a Taiwanese subsample (n=30) were compared with data on 30 patients in the United States matched by sex, age, and severity of disease to determine the equivalence of the Chinese and English versions. Construct validity was assessed by testing the hypothesis that health-related quality of life measured by using the Minnesota Living With Heart Failure Questionnaire is associated with the score on the dyspnea questionnaire. Reliability was assessed by using the Cronbach alpha and item-total correlations. RESULTS: Equivalence between the US and Taiwanese samples was high, from 0.67 to 0.91 for each item of the questionnaire and for the total score. Satisfactory correlations between the Chinese dyspnea and the Minnesota questionnaires, especially in the physical dimension (r=0.71, P<.001), provided support for the construct validity of the Chinese questionnaire. Reliability of the Chinese questionnaire was adequate (alpha=0.94). CONCLUSIONS: The Chinese Modified Pulmonary Functional Status and Dyspnea Questionnaire is a reliable and valid measure for dyspnea that can be used in Taiwanese patients with heart failure.

Identification, Associated Factors, and Prognosis of Symptom Clusters in Taiwanese Patients With Heart Failure.

BACKGROUND: Patients with heart failure (HF) have multiple distressing symptoms that are associated with poor outcomes. These symptoms do not occur in isolation from each other but likely occur as discrete clusters that may prove helpful to clinicians trying to counsel patients about symptom monitoring and management. Defining common symptom clusters and determining the associations between symptom clusters and outcomes may improve patient management. PURPOSE: The aim of this study was to define symptom clusters and their association with event-free survival in terms of cardiac hospitalization and all-cause mortality in patients with HF. METHODS: Patients were recruited from outpatient HF clinics. Physical symptoms (dyspnea, fatigue, edema, sleeplessness, anorexia, and poor memory) were measured using the modified Pulmonary Function Status and Dyspnea Questionnaire and the Minnesota Living with Heart Failure Questionnaire. A two-stage cluster analysis was conducted to identify subgroups of patients based on the self-perceived severity of the six symptoms. The Kaplan-Meier survival curve and log-rank test were used to assess whether symptom clusters were associated with event-free survival through a 12-month follow-up. RESULTS: Two hundred fifty-eight patients (mean age = 61.2 ± 12.3 years, 75% male, 41% New York Heart Association class III/IV) participated. Three symptom clusters were identified based on the severity of symptoms. These clusters were called the nonsevere symptom cluster (all symptoms were rated with low severity), the typical severity symptom cluster (high level of severity for dyspnea and fatigue, low level of severity for edema, and moderate level of severity for all other symptoms), and the atypical severity symptom cluster (low level of severity for dyspnea and fatigue, high level of severity for edema, and moderate level of severity for all other symptoms). Symptom clusters were associated with event-free survival (p < .001). A post hoc comparison showed that the prognosis was better in the nonsevere symptom cluster than both the typical symptom (p < .001) and nontypical symptom (p < .001) clusters and that the prognoses for the latter two clusters did not differ significantly. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: Symptom clusters play an important role in the prognoses of patients with HF. Both patients and healthcare providers may use the information that is provided by this study to improve the surveillance and management of related symptoms.

Predictors of quality of life in patients with heart failure.

AIM: To understand quality of life (QOL) and the effects of sociodemographics, disease severity, physical symptoms (dyspnea and fatigue), and depression on QOL of heart failure (HF) patients in Taiwan. METHODS: Adult HF patients with history of cerebral vascular accident, myocardial infarction within the previous 6 months, major diseases, concurrent cancers, and coexisting terminal diseases, cognitive impairments, or residence in institutions, were excluded in this study. Quality of life, physical symptoms, and depression were measured by the Minnesota Living with Heart Failure Questionnaire, Pulmonary Function Status and Dyspnea Questionnaire, and Brief Symptom Inventory depression subscale, respectively. Hierarchical regression analyses were used to examine the correlations of demographics, disease severity, physical symptoms, and depression with QOL in HF patients. RESULTS: One hundred and thirty-three HF patients (64.2 ± 12.7 years, 78.2% male, 36.1% NYHA III/IV) were recruited in the study. In the final regression model, age, duration of HF, physical symptoms, and depression had a significant impact on global QOL, ultimately accounting for 37.6% of the variance of QOL. CONCLUSION: Age, duration of HF, physical symptoms, and depression are important predictors of QOL in HF patients. Interventions targeting physical symptoms and depression are expected to improve QOL of HF patients.

Identification of symptom clusters among patients with heart failure: an international observational study.

BACKGROUND: Virtually all patients with heart failure experience multiple symptoms simultaneously, yet clinicians and researchers usually consider symptoms in isolation. Recognizing and responding early to escalating symptoms is essential to preventing hospitalizations in heart failure, yet patients have considerable difficulty recognizing symptoms. Identification of symptom clusters could improve symptom recognition, but cultural differences may be present that must be considered. OBJECTIVES: To identify and compare symptom clusters in heart failure patients from the United States, Europe and Asia. DESIGN: Cross-sectional, observational study. SETTINGS: In- and out-patient settings in three regions of the world: Asia (i.e., China and Taiwan); Europe (i.e., the Netherlands and Sweden); and the United States. PARTICIPANTS: A total of 720 patients with confirmed heart failure. Propensity scoring using New York Heart Association Classification was used to match participants from each of the three regions. METHODS: Symptoms were identified using the Minnesota Living with Heart Failure Questionnaire. To identify symptom clusters we used cluster analysis with the hierarchical cluster agglomerative approach. We used the Euclidean distance to measure the similarity of variables. Proximity between groups of variables was measured using Ward's method. The resulting clusters were displayed with dendrograms, which show the proximity of variables to each other on the basis of semi-partial R-squared scores. RESULTS: There was a core group of symptoms that formed two comparable clusters across the countries. Dyspnea, difficulty in walking or climbing, fatigue/increased need to rest, and fatigue/low energy were grouped into a cluster, which was labeled as a physical capacity symptom cluster. Worrying, feeling depressed, and cognitive problems were grouped into a cluster, which was labeled as an emotional/cognitive symptom cluster. The symptoms of edema and trouble sleeping were variable among the countries and fell into different clusters. CONCLUSION: Despite the diversity in cultures studied, we found that symptoms clustered similarly among the cultural groups. Identification of similar symptoms clusters among patients with heart failure may improve symptom recognition in both patients and healthcare providers.

Moderating effect of psychosocial factors for dyspnea in Taiwanese and American heart failure patients.

BACKGROUND: Dyspnea is the most common and distressing symptom of heart failure (HF). Evidence from empirical studies has shown that multiple factors apart from pathophysiological changes may influence this symptom. PURPOSE: This study explored the moderating effect of psychosocial factors between clinical characteristics and dyspnea in patients with HF. To assess the potential effects of cultural background, this study also compared differences in psychosocial factor moderating effects between HF patients in Taiwan and the United States. METHODS: We recruited patients with HF from outpatient clinics in Taiwan and the United States. Data were collected at clinics and research centers. Dyspnea was measured using the modified pulmonary function status and dyspnea questionnaire. Psychosocial factors considered were depression, anxiety, perceived control, and perceived social support. These factors were measured using the Brief Symptom Inventory, Revised Control Attitudes Scale, and Multidimensional Scale of Social Support Scale, respectively. Multiple regressions with interaction effect analysis tested the moderator effects across these two groups. RESULTS: Ninety-seven Taiwanese (mean age = 66.2 ± 12.1 years; 76% male; 28% NYHA [New York Heart Association] III/IV) and 96 American (mean age = 61.6 ± 11.7 years; 74% male; 42% NYHA III/IV) patients participated. In Taiwanese patients, only perceived social support (B = .08, p = .034) moderated the relationship between clinical variables and dyspnea. In American patients, depression (B = .75, p = .028) and anxiety (B = .85, p = .041) were moderators of the relationship between clinical status and dyspnea severity. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: Depression, anxiety, and perceived social support moderated the relationship of clinical characteristics with dyspnea in Taiwanese and American HF patients, respectively. Attention to these psychosocial factors may improve dyspnea status in HF patients. Symptom management should include a focus on patients' psychological distress and social perspectives.

Comparison of self-care behaviors of heart failure patients in 15 countries worldwide.

OBJECTIVE: Clinicians worldwide seek to educate and support heart failure patients to engage in self-care. We aimed to describe self-care behaviors of patients from 15 countries across three continents. METHODS: Data on self-care were pooled from 5964 heart failure patients from the United States, Europe, Australasia and South America. Data on self-care were collected with the Self-care of Heart Failure Index or the European Heart Failure Self-care Behavior Scale. RESULTS: In all the samples, most patients reported taking their medications as prescribed but exercise and weight monitoring were low. In 14 of the 22 samples, more than 50% of the patients reported low exercise levels. In 16 samples, less than half of the patients weighed themselves regularly, with large differences among the countries. Self-care with regard to receiving an annual flu shot and following a low sodium diet varied most across the countries. CONCLUSION: Self-care behaviors are sub-optimal in heart failure patients and need to be improved worldwide. PRACTICE IMPLICATIONS: Interventions that focus on specific self-care behaviors may be more effective than general educational programs. Changes in some health care systems and national policies are needed to support patients with heart failure to increase their self-care behavior.

A systematic review of sleep patterns and factors that disturb sleep after heart surgery.

BACKGROUND: Sleep is a vital and restorative human function. However, it has been reported that up to 50% of heart surgery patients experience sleep disturbance during hospitalization and after discharge. PURPOSE: This study describes sleep patterns in adults over the recovery course after heart surgery and works to identify potential interventions. Researchers analyzed and synthesized studies of sleep patterns and sleep-related factors in heart surgery patients. METHODS: Observational studies describing sleep through the course of recovery from heart surgery were searched from databases of PubMed, MEDLINE, Cumulative Index to Nursing and Allied Health Literature, Current Contents, and Chinese Electronic Periodicals Service from 1966 to 2011. Only studies that used polysomnography, actigraphy, or self-report sleep questionnaires to measure sleep were recruited in this review. Results of sleep patterns and sleep quality were pooled from homogeneity studies. RESULTS: Eight studies that investigated sleep patterns in heart surgery patient and nine studies that examined factors associated with sleep disturbances in this patient group were analyzed and synthesized. Serious problems including low sleep efficiency and difficulty in maintaining sleep often happened during the first postoperative week. It took 2 months for sleep to recover to preoperational levels. Although sleep quality improved over time, sleep disturbances still persisted through 6 months of recovery. Physical factors, including pain, dyspnea, nocturia, and cardiac function, and environmental factors, including noise, light, and procedures on patients, were associated with sleep disturbances during hospitalization. Psychological factors, including anxiety and depression, affected sleep during the first -6 months after discharge. Individual factors of age and gender affected sleep through the entire recovery course. CONCLUSIONS/IMPLICATION FOR PRACTICE: Sleep disturbances persist over the course of recovery in heart surgery patients, and sleep disturbance is associated with individual, physiological, psychological, and environmental factors. Findings suggest that management of major symptoms and control of the patient's sleeping environment during hospitalization and at early recovery stage as well as mental healthcare after discharge may improve sleep quality and recovery in heart surgery patients.