Abstract
Aim. The aim of this study was to examine the effect of self-management training and follow-up with phone calls or mobile social network on the blood pressure of people with hypertension.
Background. Hypertension is one of the main causes of preventable death worldwide, and self-management training and follow-up is of particular importance in these patients.
Method. This randomized controlled clinical trial was conducted on 100 patients with primary hypertension referred to AL-Zahra hospital, Isfahan, Iran in 2016. The patients were recruited through convenience sampling and were allocated by blocking randomization into four groups, control group, “self-management education without follow-up” group, “self-management education by social network follow-up” group (education and weekly follow-up for 6 weeks) and “self-management education by telephone follow-up” group (education along with weekly calls for 6 weeks). Data were collected before and 6 weeks after intervention. The data were analyzed using Chi-square test, ANOVA, and paired t-test in SPSS, version 16.
Findings. After intervention, the study groups were significantly different in terms of blood pressure (P ≤0.0001). According to Scheffe post hoc test, intervention groups (with and without follow-up) had a statistically significant difference regarding to the blood pressure when compared with compared with the control group (P≤0.0001). Scheffe post hoc test results showed that three interventions (education without follow-up, education with telephone follow-up and education with social networks follow-up) did not differ in terms of effect on systolic and diastolic blood pressure.
Conclusion. Self-management training and follow-up by telephone or mobile social network were effective on the blood pressure of people with hypertension. Nurses can take a positive step towards improving the management of hypertension with a comprehensive patient education and follow-up.

Abstract
Aim. This review study aimed to investigate the role of thirst in the development of delirium in patients admitted to intensive care units.
Background. Delirium is a common clinical syndrome in patients admitted to intensive care units, affecting approximately one-third of these patients. Delirium is a multidimensional phenomenon. One of the most important and controversial factors in the occurrence of delirium is the phenomenon of thirst.
Method. This study was conducted by searching out Persian and English databases of Magiran, SID, Web of Science, Science Direct, PubMed, Scopus, without publication year consideration and using the keywords "thirst", "dehydration", "hyperosmolarity" and "delirium". Of 55 articles retrieved, 17 articles were reviewed by the research team among, and finally, after complying with the inclusion criteria and evaluating the quality of articles, 6 articles were included in the study.
Findings. The findings of the present study showed that tolerating the thirst for more than 24 hours is a risk factor for delirium. The role of fluid deficiency in the pathogenesis of delirium is not fully understood, but factors such as tissue hypoperfusion (especially in the brain and kidneys), increased concentrations of drugs or their metabolites in reduced intravascular volumes, and decreased renal function in excretion and/or drug metabolism are possible causes for development of delirium.
Conclusion. There is a lack of studies in this area and due to the importance of delirium and thirst in patients in the intensive care units or the elderly patients, more studies should be conducted in this area. All these factors calls for more attention and studies in this area.

Abstract
Aim. The purpose of this study was to investigate the effect of mindfulness training on Corona anxiety in patients with Covid-19 and underlying cardiovascular disease in Imam Ali Hospital, Amol, Iran.
Background. Since its outbreak, the corona virus has shown that it defeats more people with underlying diseases and puts them at risk of death than those who have a healthy body.
Method. This was a quasi-experimental study with control group. The accecible population of this research was all corona patients with a history of cardiovascular disease in Imam Ali Hospital, Amol, Iran, in 2021-2022. Sampling was done from the patients admitted to the hospital based on convenience sampling method. To collect information, the Corona Virus Anxiety Questionnaire developed by Alipour et al. (2018) was used. Mindfulness training based on Kabat-Zinn (2005) educational plan was implemented in experimental group in 8 sessions of 2-hour duration per week.
Findings. The results of multivariate covariance analysis showed that mindfulness training has an effect on reducing anxiety of Corona in patients with Covid-19 and underlying cardiovascular disease to the extent of 0.87 (p≤0.001). Univariate covariance analysis showed that mindfulness training has an effect on reducing the mental symptoms of Corona anxiety in patients with Covid-19 and underlying cardiovascular disease to the extent of 0.83 (p≤0.001). Also, mindfulness training has an effect on reducing physical symptoms of Corona anxiety in patients with Covid-19 and underlying cardiovascular disease by 0.79 (p≤0.001).
Conclusion. Mindfulness exercises can enable patients with Covid-19 and underlying cardiovascular disease to pause and reflect a little before responding, and these pauses provide them with an opportunity. It allows them to get rid of judgment in many situations that can lead to anger, fear and anxiety. This will provide conditions that patients, even in the worst and acute state of their illness, are more likely to be able to maintain their mental peace and thereby, reduce the physical signs and symptoms of anxiety.