Abstract
Aim. This study was carried out to compare the effect of trinitroglycerin (TNG) spray and sublingual pearl on chest pain severity and some physiological indices of people with chest pain visited by emergency medical services.
Background. Glyceryl trinitrate is used as an anti-anginal vasodilating agent with various forms including spray and pearl with probable different therapeutic effects.
Method. In this quasi-experimental study, 80 patients with chest pain were recruited through convenience sampling and then allocated to pearl and spray groups by minimization method. After arriving at the patient's bedside, vital signs and chest pain severity were measured and recorded, then the drug was administered every 5 minutes for 3 times; thereafter, the measurements were repeated. The data analyzed in SPSS software 1) using descriptive and inferential statistics.
Findings. The results showed that after intervention, the mean score of pain in pearl and spray groups were 6.05±0.98 and 5.60±1.25, respectively. There was no statistically significant difference between groups in terms of pain score. Whereas after intervention, the mean systolic and diastolic pressure in pearl group was significantly lower than the spray group, the heart rate in both groups were increased.  
Conclusion. Nitroglycerin in the pearl form has the same effect as spray form in relieving chest pain. According to the circumstances and drug accessibility, emergency staff might use every two forms of Nitroglycerin.

Abstract
Aim. The purpose of this study was to review the patient– and family-centered care studies in coronary artery bypass graft surgery.
Background. Nowadays, the length of hospital stay after cardiac surgery is reduced, and the most of the patients recover at home with their families without usual nursing and medical care. It is necessary to provide the care based on the same needs.
Methods. This is a comprehensive review of literature published between 1990-2018 about patient- and family-centered care interventions and patient/family important outcomes in adult ICUs that was conducted through searching out databases and search engines Medline, Ovid, Science Direct, PubMed and Google scholar, including English and Persian papers. In total, 73 English papers and 46 Persian papers were found, out of which 25 papers were included in this review.
Findings. Engaging families in patient care can profoundly influence clinical decision making and patient outcomes. Yet in many hospitals and health care systems, outdated visiting policies separate families and other loved ones during hospital stays.
Conclusion. Patient– and family-centered care is associated with better clinical outcomes. The clinical benefits that have been identified through a family partnership approach in these settings include decreased mortality, increased satisfaction, improved adherence to treatment regimens, and decreased readmission rates. Although high-quality interventional studies are needed to further evaluate the effectiveness of patient- and family-centered care in coronary artery bypass surgery, it is obvious this movement in healthcare is making a huge impact on family satisfaction and patient outcomes.

Abstract
Aim. The present review study was conducted to investigate the effect of family-centered care education on outcomes of heart failure in Iranian patients.
Background. Heart failure is a complex clinical syndrome that poses a health problem due to its chronic, progressive, and irreversible nature.
Method. A comprehensive searching out scientific databases and search engines including Science Direct, Scopus, PubMed, Google Scholar, and Medline with the keywords heart failure and family-centered care education in both Persian and English language was done to find published studies between 2000 to 2020. Six articles were found based on inclusion criteria and reviewed to report their dominant findings.
Findings. Studies on the effect of family-centered care education on outcomes of heart failure in Iranian patients showed that this educational method has yield in effective results.
Conclusion. Family-centered care training improves and promotes self-care and quality of life in people with heart failure. Using this training program is recommended as an effective, cost-effective training method without the need for special equipment.

Abstract
Aim. This study aimed to examine the effects of preoperative preparation of patients and family caregivers on outcomes after coronary artery bypass graft surgery (CABG).
Background. Preoperative preparation can improve patients’ experience of surgery and hospitalization. However, there is limited data about how preoperative preparation affects postoperative outcomes following CABG.
Method. This non-randomized clinical trial was conducted on ninety pairs of patient/ caregiver in the time period from July to November 2018. The participants were purposively selected and non-randomly allocated to either control or experimental group. The intervention was performed one day after admission and the day before CABG in the form of an educational video, an intensive care unit tour, and an educational booklet. In both groups, on the third day after surgery, patients' delirium was assessed in the ICU and family caregivers were asked to complete a family satisfaction questionnaire. Patients and their family caregivers in both groups completed a hospital anxiety and depression questionnaire (HADS) on the first and seventh days after surgery and before discharge. Data were analyzed in SPSS version 16.0 using descriptive and inferential statistics. 
Findings. After intervention, the mean score of patients’ anxiety and depression in the intervention group was significantly less than the control group (P=0.03). After intervention, the mean score of anxiety and depression among family caregivers in the control and experimental groups were not significantly different (P=0.11). Family caregivers’ satisfaction of experimental group was significantly higher than the control group in both healthcare providers’ performance dimension (P=0.01) and comfort dimension (P=0.027). Moreover, the groups did not significantly differ from each other regarding delirium incidence (P=0.6) and length of stay in the intensive care unit (P=0.21).
Conclusion. Considering that the preparation of the patient and family caregiver on the day before CABG can reduce patients' anxiety and depression and increase the satisfaction of the family caregiver, it is recommended to use this intervention for patients and family caregivers before CABG.

Abstract
Aim. The present study was conducted to examine the effect of an empowerment program on the life satisfaction of patients with coronary artery disease.
Background. Because of the chronic and progressive nature of coronary artery disease, patients suffer frequent problems and relapses. Heart disease is considered as one of the debilitating diseases, and as such adversely affects the patient's self-care, quality of life, and health status.
Method. In this randomized clinical trial, 84 people with coronary artery disease, admitted to post-CCU wards in Tehran's Center for Heart diseases, were recruited in 2017. The study subjects were selected based on inclusion criteria. After explaining the study objectives and obtaining written signed consents, patients were assigned to experimental and control groups by blocking random allocation. Both groups completed questionnaires for demographic data and disease history, and Life Engagement Test. The Magic Empowerment Program was performed for experimental group as three workshop sessions for three consecutive days. Intervention continued after patients' discharge from the hospital through phone calls once a week for eight weeks. The Life Engagement Test was completed by the researcher for both groups, data were analyzed in SPSS-16 using descriptive and inferential statistics.
Findings. The results showed no statistically significant difference between groups in terms of demographic variables and disease history. Before intervention, there was no statistically significant difference between the mean scores of life satisfaction of experimental and control group and the two groups were homogeneous. After intervention, a statistically significant difference was observed between the groups in mean score of Life Engagement (P≤0.0001). The mean score of life satisfaction in experimental group, before and after the intervention was statistically significant (P≤0.0001), while in the control group there was no statistically significant difference.
Conclusion. The empowerment program increased life satisfaction of patients with coronary artery disease. Nurses can benefit from the empowerment program to improve life satisfaction, which is one of the dimensions of psychosocial health, in these patients.