Background: Adhering to a healthy lifestyle post coronary artery bypass grafting surgery is
associated with a lower risk for complications, including coronary heart disease, stroke, sudden
cardiac death and infections. Thus, promoting adherence to a healthy lifestyle has the potential to
not only substantially reduce the burden of patients but could be a simple, but important, strategy to
lower overall morbidity and premature death in cardiac patients. Aim: the study aims to assess
patients' knowledge and lifestyle before coronary artery bypass grafting' surgery. Study design: A
descriptive research design. Setting: The study was conducted at cardiac outpatient clinics,
inpatient units, and post cardiothoracic surgery intensive care unit (ICU) in Academic institute for
heart surgery affiliated to Ain Shams University Hospital. Study subjects: A purposive sample of
60 patients undergoing coronary artery bypass grafting' surgery. Results: the mean age of the study
group was (54.86±5.03), 33.35% of the study subject had satisfactory level of total knowledge.
While 66.65% of the study subjects had unsatisfactory level of total knowledge and 58.35% of the
study subject had unhealthy lifestyle behaviors. While 10% of the study subjects had unhealthy
lifestyle behaviors. Conclusion: the patients had unsatisfactory level of knowledge, and unhealthy
lifestyle behaviors before CABG surgery. Recommendation: Designing and implementing
continuous educational guidelines in other media such as: social media and mobiles applications to
improve lifestyle behaviors for patients undergoing CABG surgeries.