Journal of Korean medical science · 2020
Clinical Implications of Early Exercise Treadmill Testing after Percutaneous Coronary Intervention in the Drug-eluting Stent Era.
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Cho Sung Woo, Yang Jeong Hoon, Park Taek Kyu, Lee Joo Myung, Song Young Bin, Hahn Joo Yong, Choi Jin Ho, Gwon Hyeon Cheol, Lee Sang Hoon, Choi Seung Hyuk
Аннотация
BACKGROUND: Limited data are available on the clinical meaning of early routine exercise treadmill testing (ETT) after percutaneous coronary intervention (PCI) in the drug-eluting stent era. We aimed to determine the clinical utility and implications of early routine ETT after PCI.
METHODS: This was a single-center, prospective cohort study. A total of 776 patients underwent ETT within 3 months after index PCI were analyzed. We classified patients into ETT positive (+) and negative (-) groups and compared major adverse cardiac events (MACE) including all-cause death, myocardial infarction, and coronary revascularization.
RESULTS: The median follow-up duration was 19.6 months (interquartile range, 15.4 to 33.5 months). ETT was positive for 63 patients (17.1%) with single-vessel disease (VD) and 150 patients (36.9%) with multi-VD. Previous PCI, absence of thrombotic lesion, multi-VD, and residual Synergy Between PCI With Taxus and Cardiac Surgery (SYNTAX) score > 8 were independent predictors of ETT (+). Compared with the ETT (-) group, the ETT (+) group was associated with increased risk of MACE for patients with single-VD (18.1% vs. 52.3%; adjusted hazard ratio [HR], 2.67; 95% confidence interval [CI], 1.10-6.49; P = 0.03) and residual SYNTAX score ≤ 8 (26.5% vs. 42.1%; adjusted HR, 1.90; 95% CI, 1.09-3.30; P = 0.02), but not for patients with multi-VD and residual SYNTAX score > 8.
CONCLUSION: Early routine ETT after PCI might be helpful for predicting clinical outcomes in patients with single-VD and residual SYNTAX score ≤ 8 but not multi-VD and residual SYNTAX score > 8.
METHODS: This was a single-center, prospective cohort study. A total of 776 patients underwent ETT within 3 months after index PCI were analyzed. We classified patients into ETT positive (+) and negative (-) groups and compared major adverse cardiac events (MACE) including all-cause death, myocardial infarction, and coronary revascularization.
RESULTS: The median follow-up duration was 19.6 months (interquartile range, 15.4 to 33.5 months). ETT was positive for 63 patients (17.1%) with single-vessel disease (VD) and 150 patients (36.9%) with multi-VD. Previous PCI, absence of thrombotic lesion, multi-VD, and residual Synergy Between PCI With Taxus and Cardiac Surgery (SYNTAX) score > 8 were independent predictors of ETT (+). Compared with the ETT (-) group, the ETT (+) group was associated with increased risk of MACE for patients with single-VD (18.1% vs. 52.3%; adjusted hazard ratio [HR], 2.67; 95% confidence interval [CI], 1.10-6.49; P = 0.03) and residual SYNTAX score ≤ 8 (26.5% vs. 42.1%; adjusted HR, 1.90; 95% CI, 1.09-3.30; P = 0.02), but not for patients with multi-VD and residual SYNTAX score > 8.
CONCLUSION: Early routine ETT after PCI might be helpful for predicting clinical outcomes in patients with single-VD and residual SYNTAX score ≤ 8 but not multi-VD and residual SYNTAX score > 8.