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Journal of the Korean Academy of Rehabilitation Medicine 2008;32(4):437-442.
Cardiopulmonary Exercise Capacity in Coronary Artery Disease Patients Receiving Percutaneous Coronary Intervention Compared with Coronary Artery Bypass Grafting.
Kim, Chul , Reu, Hyun Woo , Park, Yoon Kyung , Bang, In Keol , Kim, Young Joo
Department of Rehabilitation Medicine, Inje University College of Medicine, Korea. kgorea@freechal.com
경피적 관상동맥 중재술과 관상동맥 우회술 후의 심폐 운동능력 비교
김철, 류현우, 박윤경, 방인걸, 김영주
인제대학교 의과대학 재활의학교실
Abstract
Objective
To compare the exercise capacity after cardiac rehabilitation (CR) in patients with percutaneous coronary intervention (PCI) and coronary artery bypass graft (CABG) surgery.
Method
27 patients who underwent PCI and 18 patients who underwent CABG surgery were included. All the subjects performed supervised exercise training for 6∼8 weeks at hospital and self-exercise at community for additional 16~18 weeks. Exercise capacity was measured by symptom limited graded exercise tests at study entry and 6 months later.
Results
After 6 months of CR, maximal oxygen consumption (VO2max) was significantly increased, resting heart rate (HR) and submaximal rate pressure product (RPP) were significantly decreased in both groups (p<0.05). There were no significant change of maximal HR in both groups (p<0.05). Maximal RPP in CABG increased significantly (p<0.05) but did not change significantly in PCI group. Resting HR was significantly higher, VO2max was significantly lower in CABG group than PCI group at study entry (p<0.05). Resting HR was not significantly different in both groups but, VO2max was still lower in CABG group than PCI group even after 6 months of CR (p<0.05).
Conclusion
The cardiac rehabilitation program was effective in both PCI and CABG group. Although VO2max in PCI group was higher than CABG group after 6 month CR, the range of improvement was greater in CABG group than PCI group. (J Korean Acad Rehab Med 2008; 32: 437-442)
Key Words: Exercise capacity, Percutaneous coronary intervention, Coronary artery bypass grafting, Cardiac rehabilitation
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