Heart failure awareness: a cross-sectional study on misconceptions and educational opportunities

Heart failure (HF) is an increasing cause of cardiovascular morbidity and mortality. However, the lay public awareness about HF is shown to be inferior to the knowledge of myocardial infarction or stroke. The vast majority of HF patients lack basic comprehension of HF and self-care, which translates into suboptimal treatment outcomes. Therefore this study aimed to establish the present level of knowledge about HF of the lay public and to evaluate the effects of a single public lecture for the consideration of implementing further steps to raise public awareness. Design and methods: We performed a cross sectional survey study using an anonymous questionnaire designed by the German Competence Network Heart Failure (CNHF). Respondents were selected randomly and fulfilled the questionnaire free-willingly prior to and after a standardized lecture on HF. The CNHF questionnaire consisted of two sets of questions focusing on individual characteristics of the respondent and HF-related knowledge. The gathered data were verified by a standardized procedure in Wurzburg, Germany. Results: Among 1025 respondents 60% were females: 15% of the participants had occupational experience in the medical field. The majority (79%) of the study population had heard about HF previously. Typical complaints and symptoms of HF were correctly identified as ‘shortness of breath’ by 69%, ‘swelling of feet’ by 56%, ‘fatigue’ by 56%, and ‘weakness’ by 54% survey participants. The lecture resulted in 22% (from 26% to 48%) increase of correct identification of the combination all three HF symptoms (shortness of breath, swelling of feet and tiredness). The lecture significantly increased the proportion of correct answers for most of the questions. Particularly notable gains were observed in respondents without prior medical experience. Conclusion: The study population’s initial awareness of HF was insufficient. Standardized lecture improved the short-term knowledge about HF symptoms and nature of the disease. Regular educational activities increasing the HF awareness of general population and HF patients can increase the overall HF treatment success.