| 제목 |
Is activity index correlate with cardiopulmonary exercise test in myocardial infarction patients? |
| 소속 |
Jeju National University Hospital, Department of Rehabilitation Medicine1 |
| 저자 |
Youn Ji Kim1*, Jun Hwan Choi1†, So Young Lee1, Hyun Jung Lee1, Su Jong Lee1 |
Objective: The purpose of this study is to identify that the Korean Activity Status Index (KASI) were used prediction of cardiopulmonary exercise test (CPET) in patients with acute myocardial infarction.
Method: Patients who diagnosed acute myocardial infarction were enrolled in the Regional Center Myocardial Infarction Registry between July 2016 and June 2019. KASI is a tool to measure the functional capacity by asking the patients about the ability to perform specific activities and scoring the response. CPET is a gold standard in assessing objective functional capacity for patients undergoing cardiac rehabilitation and peak oxygen consumption (pVO2) was used for analysis of correlation. The inclusion criteria of this study was that patients complete two consecutive both KASI and CPET evaluations at first (KASI_1, pVO2_1) and second visit (KASI_2, pVO2_2) for cardiac rehabilitation.
Results: A total of 2268 patients (331 males and 1937 females; average age 59.3 ± 10.2 years) were included in the analysis. Mean KASI_1 and KASI_2 scores were 43.3 ± 14.3, 49.8 ± 13.9, and mean pVO2_1 and pVO2_2 were 25.9 ± 8.0, 28.5 ± 8.3. Both KASI scores were significantly correlated to the measured pVO2 at each time and correlation coefficient were 0.385 (p<0.001), 0.346 (p<0.001), respectively. KASI and pVO2 had a linear relation (pVO2_1 = 0.22 X KASI_1 + 16.5, p<0.001, pVO2_2 = 0.21 X KASI_2 + 18.2, p<0.001).
Conclusion: This study revealed that KASI is a valid measure and follow-up evaluation of functional capacity of patients by means of self-administered questionnaire. These findings suggest that pVO2 is predicted using KASI in patients who do not have CPET. |
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Table 1. Demonstration of demographics and disease-related characteristics of the subjects.
Fig 1. Demonstration of association between Korean Activity Status Index and peak oxygen consumption at first visit for cardiac rehabilitation.
Fig 2. Demonstration of association between Korean Activity Status Index and peak oxygen consumption at second visit for cardiac rehabilitation.
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