The Effect of Education Given to Patients Before Cardiac Surgery on Environmental Stressors Perceived by the Patient: A Randomised Controlled Study

The randomised controlled trial will be conducted in the cardiovascular surgery service of Trakya University Health Research and Application Centre. Date of research will be conducted: November.2023- March 2024 The research sample will consist of 64 volunteer patients. The sample was determined using power analysis at the research planning stage. The minimum number of people to be included in the sample was calculated as 54, each group consisting of 27 (1:1) patients, with an effect size of 0.80, 95% confidence level, 5% tolerance and 80% power ratio, using the G.Power 3.1.9.4 programme. In case of possible patient loss, the sample size was increased by 20% and each group was decided to consist of 32 patients. A total of 64 patients were included in the sample.

Data Collection Forms Patient information form; The form was developed by the researchers in line with the literature and includes some characteristics (age, gender, educational status, marital status, habits, surgical experience, presence of preoperative stress, physician diagnosis, surgical procedure performed, presence of chronic disease, presence of companion, presence of intensive care experience, perception of intensive care experience, opinion about the concept of intensive care, presence of anxiety about intensive care follow-up, postoperative hospitalisation day in the intensive care unit).

Intensive Care Unit Environmental Stressors Scale; This scale was developed by Ballard (1) in 1981 to describe the stressors perceived by patients treated in intensive care units and revised by Cochran and Ganong (2) in 1989. The scale was adapted into Turkish by Çınar, Aslan and Kurtoğlu (3) and Cronbach's alpha value was found to be 0.94. The scale contains 42 items and the answers are in 4-point Likert type. 1=Never affects, 2= Very little affects, 3= Frequently affects, 4= Very much affects. The lowest total score of the scale is 42 points and the highest is 168 points.

Patient satisfaction form; The satisfaction of the patients in the experimental group with the preoperative training will be evaluated with a numerical rating scale ranging from 0 to 10 points (0 = Not at all satisfied, 10 = Very satisfied).

Data Collection Process The researcher will visit the service and identify the patients who will undergo cardiac surgery. Before starting data collection, the eligibility of the patients will be determined based on the sampling criteria. Patients who meet the inclusion criteria will be informed verbally and in writing about the research, scales, etc. in the preoperative period and the informed consent form will be signed. "Patient Information Form" will be applied in the preoperative period. The data of the study will be collected by the researcher in the patient room by face-to-face interview method.