The Relationship among Six-minute Walk Test, 12-item Short Form and the World Health Organization Quality of Life Brief in post Coronary Artery Bypass Graft Patients: A Pilot Study

Objective: To determine the quality of life (QOL) and physical capacity of post coronary artery bypass graft (CABG) patients and to investigate the relationship between physical capacity by using six-minute walk test (6MWT) and QOL by using 12-item short form (SF-12) and the world health organization quality of life brief form (WHOQOL-BRIF) in post CABG patients. Materials and Methods: SF-12, WHOQOL-BREF and 6MWT were evaluated before surgery and sixth week after CABG (n=9). Pearson’s product-moment correlation was used to evaluate the relationship of parameters, dependent T-test was used to compare QOL and physical capacity before and after surgery. Results: At 4-6 weeks post CABG, average scores of SF-12, WHOQOL-BREF and 6MWD were increase from baseline (SF-12; 62.61±12.00 to 73.21±5.28, WHOQOL-BREF; 96.67±11.50 to 100.89±10.06, 6MWD; 203.26±89.78 to 350.00±124.75 meters). SF-12 and 6MWD, WHOQOL-BREF and 6MWD had fair correlation (r=0.57, r=0.54 respectively). Conclusion: QOL scores and 6MWD were increase after CABG surgery. The relationship of QOL questionnaires and physical capacity were positive fair correlation.