The Predictive Value of SigmaDeltaST/DeltaHR Index for Restenosis after Percutaneous Coronary Intervention.
10.5535/arm.2012.36.4.544
- Author:
Chul KIM
1
;
Hee Eun CHOI
Author Information
1. Department of Rehabilitation Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul 139-707, Korea. ckim@paik.ac.kr, s2758@paik.ac.kr
- Publication Type:Original Article
- Keywords:
Coronary artery disease;
Rehabilitation;
Exercise test;
Coronary restenosis
- MeSH:
Acute Coronary Syndrome;
Coronary Angiography;
Coronary Artery Disease;
Coronary Restenosis;
Depression;
Exercise Test;
Exercise Tolerance;
Follow-Up Studies;
Humans;
Percutaneous Coronary Intervention;
Sensitivity and Specificity
- From:Annals of Rehabilitation Medicine
2012;36(4):544-550
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVE: To find out the predictive value of the SigmaDeltaST/DeltaHR 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 (SigmaDeltaST index) of leads II, III, aVF, V4-6 as well as the sum of the DeltaST/DeltaHR (heart rate) (SigmaDeltaST/DeltaHR index) in the same leads and the sum of the DeltaST/DeltaRPP (rate pressure product) (SigmaDeltaST/DeltaRPP 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 SigmaDeltaST index were 69%, 47%, 31%, and 82%. The SigmaDeltaST/DeltaHR index was 13.7+/-5.2 in the restenosis group and 9.3+/-5.6 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 SigmaDeltaST/DeltaRPP index were 0.10+/-0.08 in the restenosis group and 0.06+/-0.04 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 SigmaDeltaST/DeltaHR index showed a much higher sensitivity and negative predictive value for restenosis after PCI compared to the SigmaDeltaST index.
