Abstract
Aim. The aim of this study was to examine the effect of teach back learning strategy on illness perception, nutritional knowledge and dietary adherence in people with hypertension.
Background. Because of the chronicity of hypertension and the importance of nutrition in hypertension control, illness perception and nutritional knowledge play an important role in adherence to nutritional regimen and disease control.
Method. The present study is a quasi-experimental study control group and pretest-posttest design. Based on random sampling, two health care centers in Ferdows were selected as the place for experimental and control group. Using a simple randomized method, of patients with hypertension, 35 individuals were recruited for each group. These people entered the study based on inclusion criteria and after that they signed the consent form. Before and after the intervention, illness perception, nutritional knowledge and dietary adherence were measured by self-report questionnaire and compared between the groups.
Findings. After intervention, the mean score of nutritional knowledge in experimental and control group was 48.17±5.21 and 41.16±0.51, respectively, and a statically significant difference was found between groups in terms of nutritional knowledge (P≤0.0001; t=9.56). After intervention, the mean score of illness perception in experimental and control group was 9.75±1.81 and 7.72±1.60, respectively, and there was a statically significant difference between groups in terms of illness perception (P≤0.0001; t=4.15). But no statically significant difference was found between experimental and control group in terms of dietary adherence (17.55±4.17 against 16.88±3.62).
Conclusion. Given the positive effects of teach back method and the special role of nurses in patient education, attention to this teaching method seems necessary. The use of this method of training is suggested as part of care process to reduce patients' clinical problems.

Abstract
Aim. The purpose of this study was to review the importance of cardiac rehabilitation and physical activity training in the second phase of rehabilitation.
Background. Cardiac rehabilitation is defined as a comprehensive long-term program consisting of medical assessment, exercise program administration, correction of cardiovascular risk factors, training and counseling. Familiarizing nurses with the area of ​​cardiac rehabilitation and providing necessary education to patients will have a significant effect on reducing complications and improving quality of life.
Method. This review study was carried out by library and internet searches in the years 2018-2019 using the keywords “coronary artery bypass graft surgery”, “adherence to treatment”, “cardiovascular disease”, “physical activity”, “exercises at home”, “cardiac rehabilitation” and their Persian equivalents. The search was carried out in databases, search engines PubMed, SID, MagIran, Web of Sciences, Cochrane Library, CINHAL, OVID, Google Scholar, Up-to-date, and Scopus without time limit. A total of 51 articles were found in relation to the subject under study, of which, 4 articles were excluded because of duplication and 10 articles were excluded because their full texts were not available. Finally, 37 articles were included in the study.
Findings. The role of the nurse in training cardiac patients for rehabilitation is of great importance. By educating patients about the principles of rehabilitation for prevention and management of complications, an important role can be played in improving the quality of life of patients and increasing their survival.
Conclusion. Nurses' acquaintance with the principles of cardiac rehabilitation is of particular importance. It is suggested that nurses consider rehabilitation education as one of the supportive therapeutic and preventive approaches and should always be familiar with the latest guidelines in this area.

Abstract
Aim. This study aimed to investigate the effect of telenursing on adherence to treatment in adolescents undergoing cardiac surgery.
Background. Congenital Heart Disease (CHD) has a significant global prevalence and a large number of patients undergo cardiac surgery every year. Adherence to treatment is essential to achieve the expected outcomes of surgery.
Method. This study was a quasi-experimental before-after study with control groups that was conducted in the year 2020. A total of 70 adolescents referred to a university cardiovascular medical and research center in Tehran, Iran, were recruited based on the inclusion criteria and then, randomly assigned to experimental (n=35) and control (n=35) group. The experimental group received a telenursing services via WhatsApp messenger for one month. Modanloo's questionnaire of adherence to treatment was used to collect the data. Data were analyzed in SPSS V-20 using descriptive and inferential statistics.
Findings. There was no statistically significant difference between the experimental and control groups in terms of demographic variables. Before intervention, the mean score of adherence to treatment in the experimental and control groups was 71.67±6.97 and 71.77±7.89, respectively, which were not statistically different. After intervention, the mean score of adherence to treatment in the experimental and control group changed by 15.17 and -2.49, respectively, and the difference between the groups was found to be highly significant (P≤0.0001).
Conclusion. According to the findings, telenursing improved adherence to the treatment. Therefore, it is recommended to provide the ground to take the benefits of this approach through increasing public information and awareness and empowering the nursing staff.

Abstract
Aim. The aim of this literature review was to investigate the importance of adherence to diet in and nutritional recommendations for patient after coronary artery bypass graft surgery.
Background. Nutritional patterns after heart surgery are among the most important aspects of care that is provided by the nurse. Due to the importance of this issue, various studies have been conducted to focus on principles of proper nutrition after coronary artery bypass graft surgery and the necessary recommendations.
Method. The present review study was conducted through searching out databases and search engines Pub Med, SID, MagIran, Web of Sciences, Cochrane Library, CINHAL, OVID, Up-to-date, and Scopus without time limit using the keywords Coronary artery bypass graft surgery, Adherence to nutrition therapy, Cardiovascular disease, Survival rate, Complications of heart disease and nursing care, Diet, and Nutritional support. Out of a total of 103 articles, 65 articles with accessible full text entered the qualitative review stage, of which 51 articles entered the literature review.
Findings. The use of appropriate dietary approach such as consumption of fruits and vegetables, nuts and nuts, consumption of dairy products, fish and cooked and steamed foods should be the first priority of patients after coronary artery bypass graft surgery. They should avoid of fried and processed materials as much as possible.
Conclusion. Nurses' familiarity with the principles of nutrition and providing nutritional solutions, based on the latest guidelines published, to patients after coronary artery bypass graft surgery plays an important role in reducing complications and readmission of patients.

ABSTRACT
Aim. The aim of this study was to investigate the effect of education by Teach Back method and group education on self-efficacy of patients with myocardial infarction.
Background. Cardiovascular diseases are among the leading causes of death worldwide. Effective education of patients requires the use of educational methods whose effectiveness have been identified.
Methods. The present study was a clinical trial conducted at Rajaie Cardiovascular Medical and Research Center in Tehran during 2020 and 2021. Sampling was performed continuously until 105 people were completed. Patients were randomly divided into three groups of 35, including group (Teach Back, group training, and Control), based on blocking randomization (size=6). The training sessions were conducted in two one hour sessions for two consecutive days. The control group received routine ward training. Data were collected using demographic information form and Sullivan Cardiac Self-Efficacy Questionnaire that completed before training by patients and two weeks after training by telephone by the researcher. Finally, data on 93 patients admitted to cardiac care unit were analyzed using SPSS software version 24.
Findings. Groups were homogenous in terms of demographic characteristics and disease history. The mean and standard deviation of self-efficacy score before training was 8.03±1.84 in teach back group, 7.58±2.16 in the group training and 6.90±1.40 in the control group. One-way analysis of variance showed that the mean score of self-efficacy before the intervention in the study groups was not statistically different, but two weeks after training, the mean and standard deviation of self-efficacy score was 51.6±7.85 in the teach back training, 45.77±8.39 in the group training group, and 23.16±9.13 in the control group. Increase in self-efficacy mean score in patients under teach back training was significantly higher than patients under group training and control group (P≤0.0001), and in patients under group training was significantly higher than patients in control group (P≤0.0001).
Conclusion. Teach Back training and group training increase the self-efficacy of patients with myocardial infarction. Due to the role of nurses in patient education, this educational methods can be used.

Abstract
Aim. This study was conducted with the aim of investigating the effect of family-centered self-care program based on home visits on adherence to physical activity of patients with acute coronary syndrome
Background. Coronary artery disease is one of the most common cardiovascular diseases. The importance of physical activity as an important factor in controlling and preventing the recurrence of the disease in these patients. Adherence to physical activity in patients with acute coronary syndrome (ACS) has a significant effect on preventing re-hospitalization and reducing complications.
Method. In this semi-experimental study conducted in 2021-2002, 72 people with ACS were randomly divided into experimental and control groups (32 people in each group). For the control group, routine interventions, and for the experimental group, family-centered self-care was delivered. Data collection tools were demographic questionnaire and Beck's physical activity level questionnaire.
Findings. Before intervention, there was no statistically significant difference between groups in the mean score of adherence to physical activity. Immediately after the intervention, the mean score in the experimental and control group was 6.31±2.01 and 5.98±1.21, respectively, indicating a statistical significant difference between groups. One and half month after the intervention, the mean score in the experimental and control group was 9.14±1.44 and 78±0.9, respectively, showing a statistical significant difference between groups.
Conclusion. Family-centered self-care in patients with acute coronary syndrome is effective on adherence to physical activity of these patients. Therefore, it is recommended to use this educational method as one of the effective and non-pharmacological methods for people with ACS in medical centers and at home to improve the quality of life among these patients.

Abstract
Aim. This study aimed to investigate the effect of individual and group self-care training on self-care behaviors and readmission in patients with heart failure.
Background. Teaching patients with heart failure plays an important role in achieving favorable treatment outcome, management of disease complications and reduction in readmission.
Method. This semi-experimental study was conducted with a pre-test post-test design with a control group and follow-up on 75 patients with heart failure. In individual education group, educational intervention was done individually and in another experimental group, it was done in groups of 3-5 people in two sessions. In control group, routine training was delivered. Self-care behaviors were evaluated using the European Heart Failure Self-care Behavior Scale (EHFScBs) at the beginning, and 30 and 90 days after discharge. The frequency of readmission was evaluated 30, 60 and 90 days after discharge. Data analysis was done in SPSS version 21 using Chi-square and Kruskal-Wallis statistical tests.
Findings. Self-care behaviors in 30 and 90 days after the intervention showed a statistically significant difference between experimental and control groups (p=0.002 and p=0.027, respectively). Regarding the frequency of readmission, at the end of 30, 60 and 90 days after discharge, there was no statistically significant difference between groups.
Conclusion. Providing educational intervention (in individual and group forms) is recommended to improve self-care behaviors in patients with heart failure. The effect of these educational interventions on the frequency of readmission was not significant; therefore, it is suggested to conduct future studies with more samples and in a longer period of time.