The results showed no significant difference between patients' mean heart rate and systolic blood pressure in the intervention and control groups before the intervention. Also, no significant difference was observed between the two groups regarding body temperature and respiration rate before, during, and after the intervention. In addition, there was a significant difference between the mean heart rate and systolic blood pressure of patients in the intervention group during different times; in other words, at different times (ie, before, during, and after visitation), their values were declined during and after visitation compared to before it. However, no significant difference was observed between the mean body temperature and respiration rate in the intervention and control groups at different times. Mahmoudi et al. showed that increasing the duration and frequency of visitations up to 30 minutes per day in three 10-minute intervals in the intervention group, compared to 10 minutes per day in the control group, could decrease systolic and diastolic blood pressure indices in patients admitted to the intensive care unit (
24), which is consistent with the results of the present study. In this regard, Salavati et al. showed that the mean heart rate, systolic and diastolic blood pressure, mean arterial pressure, and respiratory rate in the intervention group 10 minutes before and during visitation, 10 minutes after the start of the visitation, and 10 minutes after the end of the visitation were not significantly different (
1), which is not consistent with the results of the present study. Furthermore, Akbari et al. showed that increasing the duration and frequency of family visitations of the patient in the ICU resulted in reduced systolic blood pressure up to 30 minutes after the visitation. However, no effect was observed on systolic blood pressure after a long time, ie, 24 hours after the first visitation, 24 hours after the second visitation, and 48 hours after the second visitation (
25). Rezaie et al. showed that increasing the visitation time to 30 minutes per day in the evening shift increased systolic blood pressure in patients in the intervention group up to one hour after the visitation, compared to visitations from behind a glass wall in the control group, which did not affect patients’ physiological indices (
26). Rahmani et al. reported that the mean systolic blood pressure of patients in the intervention group significantly reduced on the third day of hospitalization compared to the first day of hospitalization, whereas the mean systolic blood pressure in the control group increased on the third day of hospitalization compared to the first day of hospitalization; this difference was not statistically significant (
4).
The present study is different from previous studies in some ways. For instance, the duration of the companion's presence at the patient's bedside was less than twice a day, and studies performed in the CCU had fewer visitation restrictions than those performed in the ICU. Also, the results of the present study regarding patients' satisfaction with the care provided in the CCU and the services provided in the hospital showed a significant difference between the two groups; that is, those in the intervention group presented a higher level of satisfaction than controls. In this regard, Heidarzadeh et al. showed that the scheduled visitation was a good way to reduce anxiety in patients with angina pectoris admitted to the CCU, so it could replace the prohibited visitation method in ICUs (
27). In a study on 53 subjects, Orlean compared the anxiety and satisfaction level of the spouses of patients admitted to the ICU in two methods of free visitation and four times a day. This study showed that the spouses of the patients belonging to the free visitation group had higher satisfaction than those in the restricted visitation group (
28). Also, Najafvandzadeh et al. showed that an appropriate visitation policy should be adopted in the CCU to provide a treatment setting intended to reduce patients' unpleasant psychological and physiological reactions and to create an environment in which patients' anxiety and psychological stress are minimized so that patients' cardiovascular complications are also decreased, and their health and satisfaction levels are increased (
29). Yari-Bajelani et al. showed that free visitation led to reduced anxiety, improved sleep quality, and increased patients' satisfaction after coronary artery bypass graft surgery (
30).