Effect of Cardiac Rehabilitation on Atrial Conductions Following
Isolated Coronary Artery Bypass Surgery
Background: Cardiac rehabilitation (CR) is associated with improved
clinical outcomes in a broad spectrum of cardiac disease. The beneficial
effect of CR has been proven in patients with ischemic heart diseases.
Post-operative atrial fibrillation (AF) and atrial arrhythmias are
common complications following coronary artery bypass grafting (CABG)
surgery. The aim of this study was to evaluate the effect of CR on
atrial conductions in patients who underwent isolated CABG surgery.
Methods: After the exclusion criterion was applied 545 patients were
included in the study, retrospectively. One group (Rehab +) included
patients who participated in CR program and the other group (Rehab -)
included patients who did not want to or could not be participated in CR
program after isolated CABG surgery. ECG parameters of Pmax, Pmin and P
wave dispersion (PWD) of both groups were compared. Results: All
parameters including heart rate, PR interval, Pmax, Pmin and PWD were
significantly changed in rehab (+) group after CABG surgery. There was
significant change in rehab (+) group when compared to rehab (-) group
in terms of parameters of Pmax (P<0.001), Pmin
(P<0.001), P wave dispersion (P<0.001). Conclusion:
Our findings referred that CR program significantly improved parameters
of atrial conduction including Pmax, Pmin and PWD following isolated
CABG surgery. Thereby improvement in atrial conduction by CR program
following CABG surgery could reduce atrial arrhythmias.