IRCT20190202042585N1 IRCT 2019-03-02 Tehran University of Medical Sciences Comparison of the effect of education by nurses and peer through video on anxiety and depression in patients undergoing open heart surgery Comparison of the effect of education by nurses and peer through video on anxiety and depression in patients undergoing open heart surgery 2018-08-05 anticipated 114 Complete https://irct.ir/trial/37552 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Education/Guidance, Randomization description: Randomization was done using permutation blocks method. three randomly assigned random blocks to one of six blocks. Thus, 114 samples were divided into three groups of 38, with 35 cases in control group and 35 in each group in the first and second intervention group, taking into account the loss of specimens. N/A Condition 1: Anxiety Caused by Heart Surgery. Condition 2: Depression Caused by Heart Surgery. Intervention 1: Control group: Only receive routine training. Intervention 2: Intervention group: For this group, in addition to routine training, there was only one video presentation showing explanations about the admission process, the transfer to the operating room and the postoperative recovery process in which a nurse played the role of educator. Intervention 3: Intervention group: For this group, in addition to routine training, there was only one film presentation showing explanations about the process of admission, the transfer to the operating room and the postoperative recovery process in which a peer played a role of trainer. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is no more information