The results of the present study showed that the two studied groups were homogenous before performing the study regarding age, marital status, life style, education, occupation, income level, sex, diagnosis, underlying diseases, smoking, and alcohol and drugs abuse.
Our results suggested no significant difference in physiological indices of the patients before applying visitation plans in both control and intervention groups (P > 0.05) that was consistent with the findings of Comruni (
16).
According to the results of the evaluations during the first (9:00 AM), second (12:00 PM) and third visitation stages (3:00 PM), the participants in the intervention group showed improvements in physiological indices (including heart rate, respiratory rate, systolic and diastolic blood pressures, and mean arterial pressure) during the visitation (P < 0.05), but no significant effect was reported on arterial oxygen saturation, namely, the difference was not statistically significant (P > 0.05). In the control group, however, mean values of all physiological indices showed no significant difference during the first visitation stage (9:00 AM), the second one (12:00 PM) where visitation was not allowed, and even in the third step where visitation was allowed (P > 0.05). Thus, no remarkable improvement was observed in physiological indices of the patients.
Rahmani et al. (
17) concluded that scheduled visitation may decrease physiological parameters and improve treatment results (P < 0.05). However, Salavati and Oshvandi (
18) found that scheduling time for families and friends to visit the patient makes no clinical significant improvement in cardiovascular indices (P > 0.05). In their study, no statistically significant difference was observed between the control and intervention groups, which is completely opposing the results of the present study. Also, findings of the study by Comruni et al. (
16) suggested significant improvement in physiological indices of the patients in the intervention group.
In addition, physiological indices of the participants showed statistically significant differences 10 and 30 minutes after visitation (P < 0.05) as these parameters decreased, that is, increasing visitation time improved physiological indices of the patients. However, the difference was not significant in the control group.
In the study of Azimi Lolaty et al. (
19), increased visitation time significantly improved the feel of comfort, decreased anxiety and enhanced patient’s physiological indices (including systolic and diastolic blood pressure, heart and respiratory rates, and O2sat) (P < 0.001) that is consistent with the findings of the present study.
Also, the research carried out by Zwernman (
20) suggested no statistically significant difference among mean arterial pressures measured before, during and after visitation (P > 0.05), while the above-mentioned study proved the positive effect of visiting of relatives on the patient’s mean arterial pressure. In addition, Gerber (
21) revealed that respiratory rates showed no statistically significant difference in measurements before, during, and after visitation (P > 0.05) that was due to the differences in the duration of visitation times. While, increased duration of visitation times significantly improved the respiratory status of the patients in this study.
5.1. Conclusions
Findings of the present study show that increased visitation time can lower the mean values of the physiological indices. Therefore, it is recommended that nurses working in the ICUs plan and schedule visitation times focusing on individual, social, and patient-related factors and do not merely consider the hospital principles. Rather, they can help accelerate the patient’s recovery seeking help of their family members.
Although the results of similar studies confirm the results of the present study to a large extent, the indices studied here including systolic and diastolic blood pressure, mean arterial pressure, heart rate, respiratory rate, and O2sat have not been investigated in previous research.
5.2. Limitations
Since intervention studies are conducted on a limited number of subjects, one of the limitations of this study, like other intervention studies, was low number of subjects. Another limitation of the present study was the reluctance of some nursing staff of the ward to participate in this study. However, they were persuaded to participate in the program being explained the importance of the study and illustrating its benefits for patients and health providers. Therefore, it is recommended that the research be carried out in other ICUs such as CCU to achieve more definitive results.