Abstract
Aim. The purpose of this study was to determine the effect of early mobilization program on incidence of arrhythmias in patients after acute myocardial infarction in Imam Khomeini Hospital in Dehdasht, Iran.
Background. Acute myocardial infarction is one of the most common causes of disability and mortality in most countries. Rehabilitation and mobility management of these patients, immediately after admission to the cardiac care unit, can reduces complications and decreases their physical and cognitive function impairment.
Method. This was a clinical trial study, in which 60 patients with acute myocardial infarction, referred to Imam Khomeini Hospital in Dehdasht, Iran were selected by convenience sampling during the year 2019 and randomly assigned to experimental (n=30) and control (n=30) groups. In the experimental group, patients received an organized program in 8 stages, 18 hours after admission to the cardiac care unit, and in control group, the patients got out of bed 48 hours after admission based on the usual protocol. Patients were monitored before, during, and after getting out of bed for the number and type of arrhythmias. Data were analyzed by descriptive and inferential statistics in SPSS version 22.
Findings. There was a statistically significant difference between the experimental and control group in the number and type of arrhythmias, 48 hours and 51 hours after admission in the cardiac care unit. However, this difference was not statistically significant at 54 hours after admission to the cardiac care unit.
Conclusion. Early mobilization can reduce the number of arrhythmias in patients after myocardial infarction. Early mobilization can be included in the cardiac care unit rehabilitation program as a safe mathod. Therefore, it is recommended to use early mobilization program for patients with acute myocardial infarction in cardiac care unit on the first day of hospitalization.

Abstract
Aim. This study was conducted to examine the effect of mentalization-based therapy and emotion-regulated therapy based on the Gross process model on psychological well-being and quality of work-life of nurses in intensive care units.
Background. Improving nurses' well-being and satisfaction with their quality of work-life improves the nurse-patient relationship and hospitals' performance from an organizational point of view. It is necessary to provide psychological therapeutic interventions to this crucial group of health care providers.
Method. This study was an experimental  study (pre-test post-test with control group) in which 45 nurses working in intensive care units of selected Tehran hospitals, Iran, were selected by the convenience sampling method, and assigned to two intervention groups and one control group (15 nurses in each group). Reef's short-term psychological well-being and Walton's 32-item quality of work-life were used to measure dependent variables of the study. Then, mentalization-based therapy group received intervention in 8 sessions of 90 minutes as one session per week; and the treatment group based on emotion regulated therapy based on the Gross process model received the intervention in 8 sessions of 90 minutes, one session per week based on the protocol. No intervention was implemented for the control group. Data were analyzed using descriptive and inferential statistics in SPSS software.
Findings. Before the intervention, there were the highest scores for quality of work-life in the control group. At the end of the study and after the intervention, the scores of quality of work-life increased in all three groups, and no statistical significant difference was found between the groups. Before the intervention, the highest scores for psychological well-being was observed in the mentalization-based therapy group. (85.86±6.56), and after the intervention, although the psychological well-being scores of both interventions groups were higher than that of control group, but this diferrence was not statistically significant.
Conclusion. Based on the findings of this study, it seems that training sessions of mentalization-based therapy and emotion-regulated therapy based on the Gross process model improve the quality of work-life in nurses working in intensive care units, but the improvement was not statistically significant.