5 CONCLUSION
This review aimed to explore the quality of studies that examined the impact of CRPs on HRQOL for CABG patients, and all of these studies agreed that the in and out-patient who participated in the CRI had a positive effect after CABG surgery in terms of HRQOL included the domains of HRQOL (sleep disturbance, social isolation, pain, energy level, emotional reaction, and physical abilities). On the other hand, CRI was differing from one study to another, not all of them contain all aspects that should focus on for CABG patients, or they were comprehensive. Also, the time that CRI tested its effect on HRQOL differs. Some were shortly after surgery and some were late months after surgery. This study recognized a gap in which majority of literature focused on the impact of CRPs for in-patients. Accordingly, more studies are needed that measure the impact of CRPs on out-patients after CABG surgery.
Moreover, the reviewed studies found that the combination interventions in CRP which include physical exercise, dietary intervention, and educational intervention had a remarkable effect on some specific health-related outcomes like (heart rate, cholesterol, triglyceride, and body mass index). The above information is asserting the importance of developing better strategies that help in the integration of CRPs into the usual treatment plans among CABG patients.