KMID : 0361420120360040544
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Journal of Korean Academy of Rehabilitation Medicine 2012 Volume.36 No. 4 p.544 ~ p.550
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The Predictive Value of ¥Ò¥ÄST/¥ÄHR Index for Restenosis after Percutaneous Coronary Intervention
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Kim Chul
Choi Hee-Eun
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Abstract
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Objective: To find out the predictive value of the ¥Ò¥ÄST/¥ÄHR index for restenosis after percutaneous coronary intervention (PCI).
Method: Subjects of this research were patients who participated in a cardiac rehabilitation (CR) program as six to eight weeks of a hospital-based program after receiving PCI to treat acute coronary syndrome (ACS). The patients received coronary angiography (CAG) at the onset of the ACS and nine months after that, and also received an exercise tolerance test (ETT) at the start of the CR program and several days before receiving a follow-up CAG. In ETT, we used the sum of the ST depression (¥Ò¥ÄST index) of leads II, III, aVF, V4-6 as well as the sum of the ¥ÄST/¥ÄHR (heart rate) (¥Ò¥ÄST/¥ÄHR index) in the same leads and the sum of the ¥ÄST/¥ÄRPP (rate pressure product) (¥Ò¥ÄST/ ¥ÄRPP index) in the same leads. We compared the predictive power of each index of ETT for restenosis after PCI.
Results: The sensitivity, specificity, positive predictive value, and negative predictive value of ¥Ò¥ÄST index were 69%, 47%, 31%, and 82%. The ¥Ò¥Ä
ST/¥ÄHR index was 13.7¡¾5.2 in the restenosis group and 9.3¡¾5.6 in the patent group (p=0.017). The sensitivity, specificity, positive predictive value, and negative predictive value of this index were 85%, 63%, 44%, and 92%. The ¥Ò¥ÄST/¥ÄRPP index were 0.10¡¾0.08 in the restenosis group and 0.06¡¾0.04 in the patent group (p=0.016). The sensitivity, specificity, positive predictive value, and negative predictive value of this index were 54%, 76%, 44%, and 83%.
Conclusion: The ¥Ò¥ÄST/¥ÄHR index showed a much higher sensitivity and negative predictive value for restenosis after PCI compared to the ¥Ò¥ÄST index.
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KEYWORD
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Coronary artery disease, Rehabilitation, Exercise test, Coronary restenosis
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