Comparison of Introductory Program with Multimedia Cardiac Surgery Process and Lecture Method on Hemodynamic Indicators of Candidate Cardiac Surgery Patients in a Selected Military Hospital

Cardiac surgery is an unpleasant and unfamiliar experience for patients that can affect hemodynamic parameters by psychological factors. Lecture and multimedia training can reduce the impact of these factors on the indicators.

This study aimed to determine and compare the effect of multimedia education and lecture on hemodynamic indices of patients candidates for open heart surgery.

This interventional randomized controlled trial study was conducted on 72 patients who were candidates for heart surgery in the selected military hospital in Isfahan, Iran, in 2020. The intervention, which was about all stages of heart surgery, was performed by the researcher in the multimedia training group by playing an educational video and in the other group by a lecture in a half-hour session on the day of hospitalization. In the control group, only routine training was given to patients. Hemodynamic symptoms were completed after entering the ward and one hour before entering the operating room. The collected data were entered into Spss24 software and analyzed using Chi-square or Fisher's exact tests, one-way ANOVA, paired t-test, and Scheffe's follow-up. The significant level was considered less than 0.05.

There was no significant difference in respiration rate, heart rate, and diastolic and systolic blood pressure before the intervention. After the intervention in multimedia and lecture groups, except for the respiratory factor (P=0.02), a significant decrease was observed in the other variables (P<0.05), and vice versa, a significant increase was observed in the control group (P<0.01).

Pre-surgery training can reduce the hemodynamic disturbance of coronary heart patients who are candidates for cardiac surgery. Research with larger sample size is recommended.