International Journal of Caring Sciences, vol.13, no.2, pp.1287-1296, 2020 (Refereed Journals of Other Institutions)
Background: Preoperative anxiety is a common psychological problem that affects many patients undergoing
surgery and initiates a surgical stress response. As a result of the response to surgical stress, cortisol reaches its
maximum level and vital signs change due to hormonal and neural effects.
Objective: To determine the effect of progressive respiratory relaxation training on the surgical stress response,
anxiety and vital signs.
Methods: In this study, experimental with a control group research model was used. Participants (N=78) were
randomly assigned. The experimental group received progressive breathing relaxation training before surgery.
The control group received only the usual preparation. The state anxiety scale (SAI) was used to determine the
anxiety level. Surgical stress response was determined by measuring vital signs, blood glucose, and cortisol
levels. Results: The difference between the vital signs of the two groups was not significant (p> 0.05), state
anxiety score of the experimental group decreased in the postoperative first day and blood glucose and plasma
cortisol levels were low on the 4th postoperative day. The difference between the plasma cortisol levels of the
groups on the 4th postoperative day was significant (p <0.05).
Conclusion: The findings of this study provide evidence to support the use of breathing relaxation technique due
to a positive effect in reducing the surgical stress response and anxiety.
Key Words: Progressive relaxation, surgical stress response, coronary artery bypass graft surgery, nursing