The effect of deep breathing on sleep quality, anxiety, and depression in patients undergoing coronary artery bypass graft surgery at Shafa Health Center affiliated to Kerman University of Medical Sciences

Determining the effect of deep breathing on sleep quality, anxiety and depression in patients undergoing open heart surgery at Shafa Health Center affiliated to Kerman University of Medical Sciences

This research is a randomized trial of two parallel groups

Patients of cardiac surgery department will be placed in the control and intervention groups based on random codes. After receiving training, participants in the intervention and control groups will use deep breathing and receive usual care respectively. Sleep quality, depression and anxiety of participants will be evaluated before, immediately, 15 days later and one month after the intervention.

Age above 20 years Literacy in reading and writing Absence of neurological problems Hospitalization of the patient at least one day before surgery Excluding criteria Having a history of mental disorders and sleep disorders before surgery (declared by the patient) Using sleeping pills or sleeping scents Having a hearing impairment Having a history of progressive chronic diseases such as kidney failure and uncontrolled diabetes and... Death of the patient after surgery

patients after training, breathe through the nose in a deep breath. Then stop breathing for 2 to 5 seconds and then exhale slowly through the mouth. Intervention start after the patient's hemodynamic condition is confirmed. It should be noted that the number of breathing exercises is once every three hours and 10 breaths are performed each time.

Sleep quality is measured using the Pittsburgh Questionnaire with scores between 0-21, with a lower score indicating better sleep quality. Depression and anxiety are measured by hospital depression and anxiety questionnaire with scores between 0-21. A score less than 11 indicates a degree of depression and anxiety

In this study, block randomization method is used using free software (Random Allocation Software). Because the general population of patients is not known and the study is prospective, the best method of randomization for this research was block randomization. Blocking is used in order to balance the number of samples allocated to each of the studied groups. The size of the blocks is equal, but more than the number of sample volume is produced so that if it is necessary to enter a larger number of samples, the sequence will not be disturbed. Entry into the study will continue until the completion of the set number for both groups, and if a person is removed from one group during the study, intervention and follow-up will be replaced by the next person from the sequence of blocks. The production of random blocks was done by one of the researchers of the project who has no direct relationship with the patients and their assignment.

After publishing the results of the study , the authors can send their request to the responsible author so that they can use the data of the study. All data is potentially shareable after de-identifying individuals

After publishing the results of the study , the authors can send their request to the responsible author so that they can use the data of the study.

After publishing the results of the study , the authors can send their request to the responsible author so that they can use the data of the study. All data is potentially shareable after de-identifying individuals. The data will be accessible only to researchers working in academic and scientific institutions

Researchers can use the study questionnaires by sending an email to the responsible author, and they can also receive the SPSS file of the data by maintaining confidentiality.

Corresponding author, Mrs. Mansooreh Azizzadeh Frouzi email: forozy@gmail.com

After the publication of the study results, the authors can send their request to the responsible author so that they can use the study data. The requested information will be sent within two weeks.