Abstract
Aim.This study was conducted to investigate the level of nurses’ knowledge, attitude and practice about self-care education in people with heart failure.
Background.Heart failure is one of the most common chronic diseases and the leading cause of death in the world and also, a major cause of hospital readmission, especiallyin elderly patients. Self-care education is an essential componentof care for people with heart failure. Nurses are the first providers ofself-careeducation for patients and must have a thorough knowledge, a positive attitude and skillfull practice in the field of self-care education.
Method. In this descriptive-analytical study, 174 nurses with at least one year working experience in the CCU, post CCU and medical wards of ShahidRajaie Cardiovascular and Research Center, completed a four-part questionnaire including demographics information, and knowledge, attitude and practice about self-care education in people with heart failure. Data were analyzed using descriptive and inferential statistics in SPSS, version 22.
Findings. The majority of nurses (70.1 percent)  had an average knowledge score. The knowledge level of nurses were significantly related with level of education and working experience. Also, 67.8 percent of the participants had a good practice of self-care education about heart failure and their practice was significantly related with experiencing in-service education. More than 90 percent of nurses reported positive attitude towards self-care education about heart failure and their attitude was significantly related with level of education, in-service education and work schedule.
Conclusion. The knowledge of nurses was at average level. It is recommended to plan in-service education in order to promote nurses’ level of knowledge about self-care education about heart failure.

Abstract
Aim. The aim of this study was to determine the effect of the implementation of clinical surveillance model on the amount of education provided to cardiac patients.
Background. Clinical supervision is a relationship between nurse and observer that promotes the development of nursing professional skills.
Method. This is a quasi-experimental before-after study without control group. The stratified sampling method was used to recruit 300 patients based on inclusion and exclusion criteria. The researcher used the data-gathering form to record teachings provided to patients by nurses and also, the rate of their registration in the medical record. Clinical surveillance model included planning, monthly meetings with health education volunteers, classified teaching, daily clinical supervision, follow-up, identifying the weaknesses of nurses in providing training to cardiac patients and corrective actions in a regular and continuous basis for one year. After the intervention, teachings provided to patients by nurses and also, the rate of their registration in the medical record were re-evaluated. Data were analyzed using descriptive and inferential statistics in SPSS version 19.
Findings. After intervention, the amount of teaching provided by nurses at the time of admission, during hospitalization and at the time of discharge was significantly increased (P<0.001). The findings also showed that the patients were more satisfied with the received teaching after intervention (P<0.001).
Conclusion. Continuous and regular monitoring has a significant role in the amount of education provided to patients by nurses. It is recommended to plan management and supervisory programs to be implemented for nurses involved in patient education.

Abstract
Aim. The purpose of this study was to determine the effect of supportive interventions on resiliency components and quality of life among family caregivers of people with advanced heart failure.
Background. Advanced heart failure is a costly, progressive and chronic disease that reduces resilience and quality of life among family caregivers.
Method. In a randomized clinical trial study that was conducted as a before-after design with control group and follow-up one month after intervention. One hundred family caregivers of people with advanced heart failure, admitted to Shahid Rajaie Cardiovascular and Medical Research Center, were randomly assigned into experimental and control group. The family support interventions package included participation in group training workshops for 6 sessions (2 sessions/week in three consecutive weeks) for the experimental group. Resilience Scale (Connor-Davidson) and Quality of Life (SF-36) questionnaire were used to collect the data, before, after and one month after intervention. Data were analyzed in statistical software SPSS 23 using statistical tests related to the distribution of variables including Chi-square, Fisher, Wilcoxon and Mann-Whitney test, and independent and paired t-test.
Findings. At baseline, the mean score of resilience and the overall score of quality of life showed no statistically significant difference between the groups. After intervention, there was a statistically significant difference in terms of the mean score of resilience between the experimental (64.06±11) and control (48.34±16.23) group (P<0.05). Also, the overall score of quality of life after intervention was statistically significant between the experimental (70±12.91) and control (50.82±17.73) group (P<0.05). The results of paired t-test showed that one month after the end of the intervention, in the experimental group, the mean score of resilience (63.08 ± 10.15) and the overall score of quality of life (69.82±12.70) remained constant, indicating the sustainability of the effect of interventions after one month (P>0.05).
Conclusion. As part of a holistic program, the results of this study can be a guide to setting up a centralized unit for the education and support of family caregivers of people with chronic heart disease, a unit in which, in addition to social support and mental health education, their needs in terms of knowledge of the disease and participation in the care of their patients would be met.

Aim. The present study was conducted to compare the effect of high-intensity interval training (HIIT) and moderate-intensity continuous training (MIT) (with and without blood flow restriction) on quality of life in cardiotoxic women after breast cancer treatment.
Background. Today, breast cancer is very common and cardiotoxicity is one of the most important non-avoidable complications after chemotherapy, which has a significant impact on patients’ quality of life. Using aerobic exercise training, with and without blood flow restriction, may improve quality of life of cancer survivors experiencing symptoms of cardiotoxicity. Restricting blood flow is already one of the methods used to enhance the effects of exercise training. On the other hand, previous studies show that different types of physical exercise have different physiological and psychological effects.
Methods. In this randomized clinical trial, 20 patients with cardiotoxicity after treatment for breast cancer were randomly divided into four groups including High-Intensity Interval Training (HIIT), Moderate Intensity Continuous Training (MIT), HIIT with Restricted Blood Flow (HIIT+BFR), and MIT with BFR (MIT+BFR). Interventions were applied for 12 weeks and three sessions per week. Patients in all groups completed the IHF-QoL quality of life questionnaire before and after 12 weeks of intervention.
Findings. The results of the present study showed that HIIT as well as the aerobic exercise with limited blood flow affects the quality of life of cardiotoxic patients. Quality of life scores in the HIIT+BFR group was significantly higher than that of the other groups. According to the scoring method in the questionnaire, increasing the individual score in each of the four areas of the questionnaire indicates a decrease in symptoms that disrupt the quality of life.
Conclusion. It seems that HIIT with BFR is a better way to deal with the symptoms that disrupt the quality of life, compared to HIIT without BFR, and also MIT (with and without restricting blood flow).