Improving heart failure symptom recognition: a diary analysis.

BACKGROUND: Heart failure (HF) is a costly and highly disabling syndrome affecting nearly 5 million individuals yearly. Lifestyle changes are crucial to the successful management of HF, and daily weight monitoring is an essential component of self-care. Daily weights provide an objective indicator of fluid volume status in patients with HF. However, the practice of performing daily weights is underappreciated and infrequently implemented by patients. This may contribute to an inability to recognize worsening HF and, ultimately, delay in seeking medical care. OBJECTIVE: The aim of this study was to evaluate weight monitoring diaries for adherence to daily weight monitoring, reasons for nonadherence, prevalence of weight gain of 3 lb or more in 1 day, and medical advice-seeking behavior after weight gain in a sample of patients with documented HF. METHODS: A cohort study design was used to analyze data from 20 HF patients who participated in a tailored, one-on-one educational intervention. The analysis is part of a parent pilot study designed to improve symptom recognition and response to symptoms of fluid overload. Diary data were collected for 3 months after the intervention. The diaries provided information regarding symptoms that participants experienced, daily weights, and a record of unplanned hospital visits or contacts with their physician. RESULTS: Of 20 participants in the study, 16 returned diaries for analysis. Two participants withdrew participation before the conclusion of the study and 2 participants who claimed to have completed their diary never returned the diary despite repeated reminders and telephone calls. Sixteen participant diaries were therefore available for analysis. The mean adherence score for these 16 participants was 79.4%. Seventy-five percent had weight gains of 3 lb or more in 1 day and only 1 person contacted his/her physician for weight gain. Vacation time was the most common reason for weighing nonadherence. CONCLUSION: This study revealed high adherence to daily weights in patients receiving an education session focused on fluid weight management. However, behavior related to daily weights did not lead to more appropriate use of physician or provider consultation. Diaries offer promise for symptom management and an opportunity for patients to engage in self-care; however, clinicians need to encourage patients to use the diary data to seek prompt medical care.

A simplified education program improves knowledge, self-care behavior, and disease severity in heart failure patients in rural settings.

BACKGROUND: Self-monitoring by heart failure (HF) patients of worsening symptoms caused by fluid overload is a cornerstone of HF care. Disease management has improved outcomes in HF; however, these resource-intensive programs are limited to urban centers and are generally unavailable in rural or limited health care access areas. This pilot study sought to determine whether a simplified education program focused on a single component of disease management (symptom recognition and management of fluid weight) could improve knowledge, patient-reported self-care behavior, and HF severity in a rural setting. METHODS: This randomized clinical trial enrolled 36 rural HF patients into an intervention or control group. The intervention group received a simplified education program with a follow-up phone call focusing on symptom management delivered by a non-cardiac-trained nurse. Patient knowledge, self-care behaviors, and HF severity (B-natriuretic peptide [BNP]) were measured at enrollment and at 3 months. RESULTS: The sample was primarily white men and married with a mean age of 71 years and ejection fraction of 47%. There were no differences between groups in knowledge, self-care behaviors and BNP at baseline; however, knowledge and self-care behavior related to daily weights improved significantly at 3 months in the intervention group (P = .01 and .03, respectively). Although the changes in mean BNP at 3 months were in the hypothesized direction, the difference between the 2 groups was not significant. CONCLUSIONS: A simplified education program designed for use in resource scarce settings improves knowledge and patient-reported self-care behaviors. These findings are important in providing care to patients with HF in limited access settings but should be studied for longer periods in more heterogeneous populations.

Mass media interventions to reduce help-seeking delay in people with symptoms of acute myocardial infarction: time for a new approach?

Minimizing patient delay in seeking care for acute myocardial infarction (AMI) is important in the reduction of morbidity and mortality. However, mass media interventions to reduce these delays have had limited success. This paper critiques delay reducing intervention studies and draws on other public health campaigns to identify new directions. A Medline search for the years 1985 through 2000 yielded eight intervention studies meeting inclusion criteria. Three of eight studies reported successful interventions although two of three were only marginally successful. Most studies used similar messages. Campaign lengths, type of media, and sample sizes varied. High risk populations and those with confirmed MI responded more quickly. To reduce patient delay, media messages need to do more than create awareness. Future interventions should target high risk audiences, promote dialogue between previous AMI patients and high risk patients, address problems of denial, provide gender specific education, and emphasize symptom evaluation, problem solving, and decision-making skills.

Factors to consider when analyzing 12-lead electrocardiograms for evidence of acute myocardial ischemia.

An important factor to consider when using findings on electrocardiograms for clinical decision making is that the waveforms are influenced by normal physiological and technical factors as well as by pathophysiological factors. Traditionally, the focus of bedside monitoring is detection of arrhythmia. However, continuous ST-segment monitoring for the detection of myocardial ischemia is now readily available. Many factors affect electrocardiographic waveforms and may interfere with diagnosis of myocardial ischemia based on electrocardiographic findings. Accordingly, a principal leadership role for clinical nurse specialists and nurse practitioners is to become knowledgeable about interpretation of 12-lead electrocardiograms and to share this knowledge with staff nurses who care for patients with acute coronary syndromes. The factors that alter electrocardiographic findings are reviewed, and the alterations that interfere with electrocardiogram-based diagnosis of myocardial ischemia are discussed.

The measurement of brain natriuretic peptide in heart failure: precision, accuracy, and implications for practice.

Although advances have been made in the management of heart failure (HF), hospital readmission rates remain high. Finding a simple blood test to identify HF would dramatically impact the diagnosis and treatment of this syndrome. A better understanding of the pathophysiology of HF may result in improved treatment measures. Current guidelines do not target any clinical or hemodynamic criteria to achieve before discharge. Most efforts to reduce readmissions have been focused on drugs, technology, and the use of specialty HF clinics. Brain natriuretic peptide (BNP) levels have the potential of providing diagnostic, prognostic, and therapeutic information. In addition, BNP levels appear to be associated with future cardiac events such as hospital readmission. The purpose of this article is to review the precision and accuracy of BNP measurement in those with HF, and to describe how measurement of BNP can be used in clinical practice. Ultimately, BNP testing may improve the accuracy of the diagnosis of HF and guide best treatment practices.

BNP as discharge criteria for heart failure.

BACKGROUND: Heart failure (HF) is a significant clinical and economic burden in the industrialized world. Advances in pharmaceutical compounds and various medical device technologies along with the use of sophisticated HF clinics have enhanced HF treatment and improved morbidity, mortality, and quality of life. However, hospital readmission rates remain stubbornly high. B-type natriuretic peptide (BNP) levels provide valuable information about a patient's chance of readmission within 30 days of discharge, making BNP a potentially useful tool for making discharge decisions and possibly reducing readmissions. METHODS: This review examines the strength and level of evidence in key areas to determine if BNP levels could be used as a guide for discharge of HF patients. Although most of the literature describes nonrandomized studies, there is general agreement that BNP levels can be measured accurately and precisely, that BNP levels reflect varying physiologic states, and that they predict outcomes. CONCLUSIONS: More studies are needed to determine extent of biologic variability. The further use of BNP as a potential discharge marker is promising but awaits additional randomized study that reflects use in a broad-based population.

Is coping style linked to emotional states in heart failure patients?

BACKGROUND: Negative emotional states such as anxiety and depression are associated with increased mortality and morbidity in cardiac patients. Clinicians who counsel patients with heart disease often focus on enhancing coping skills to reduce negative emotions. METHODS: To identify the relationship between 3 coping styles (active behavioral, active cognitive, and avoidance) and emotional states, we studied 84 advanced heart failure patients and used the Dealing with Illness-R Checklist to measure coping and the Profile of Mood States to measure emotional distress. RESULTS: Patients who reported greater use of active behavioral coping demonstrated less fatigue and more vigor than patients who reported lower use of that coping style. When demographic and clinical variables were taken into account, the avoidance coping style was associated with significantly higher anxiety, anger, depression, confusion, and fatigue in patients with advanced heart failure. CONCLUSIONS: Incorporating interventions that support active behavioral coping in lieu of avoidance coping may improve the emotional well-being of patients with heart failure.

An international perspective on the time to treatment for acute myocardial infarction.

PURPOSE: To compare delay and circumstances of decisions to seek care in patients with acute myocardial infarction (AMI) in the United States (US), England, Australia, South Korea, and Japan. DESIGN: Comparative prospective design. METHODS: Patients diagnosed with AMI (N = 913) were interviewed within 72 hours of hospital admission for confirmed AMI using the Response to Symptoms Questionnaire. Delay times were calculated from review of emergency room records and patients' interviews. Analysis of variance was used to test differences in delay time among countries. FINDINGS: Median delay ranged from 2.5 hours in England to 6.4 hours in Australia, with the three Pacific Rim countries reporting median delay times > 4 hours. The majority of patients experienced initial symptoms at home (range: 56% in Japan to 73% in the US) with the most common witness being a family member (32% in South Korea to 48% in England). Ambulance use was widely divergent with the highest use in England (85%) and the lowest use in the US (42%). CONCLUSIONS: In all countries, median delay was too long to obtain maximum benefit from AMI therapies, particularly thrombolysis. Education and counseling of patients and families to reduce prehospital delay in AMI episodes might be more effective if the various factors influencing patients' first responses to symptoms are considered, as well as differences in health care systems.