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  • Title: SYNTAX score: an independent predictor of long-term cardiac mortality in patients with acute ST-elevation myocardial infarction.
    Author: Yang CH, Hsieh MJ, Chen CC, Chang SH, Wang CY, Lee CH, Hsieh IC.
    Journal: Coron Artery Dis; 2012 Nov; 23(7):445-9. PubMed ID: 22968215.
    Abstract:
    INTRODUCTION: This observational study aimed to determine whether the SYNergy between percutaneous coronary intervention (PCI) with TAXUS drug-eluting stent and the cardiac surgery (SYNTAX) score can act as an independent predictor for cardiac death on long-term follow-up in patients with acute ST-elevation myocardial infarction (STEMI). METHODS: One hundred and fifty-three patients admitted to the Chang Gung Memorial Hospital in Linkou because of acute STEMI from 1 January 2008 to 31 December 2009, who subsequently underwent a primary PCI, were included in this study. SYNTAX scores were calculated immediately after the primary PCI; and the prognostic value of the SYNTAX score in relation to cardiovascular events, which were defined as low-risk (SYNTAX score 0-22) and intermediate-risk to high-risk (SYNTAX score>22), was determined. Long-term follow-up was available in 141 patients (92%, mean follow-up duration of 30±11 months). RESULTS: By Kaplan-Meier estimates, cardiac death-free survival was 99.1% in the low-risk group vs. 78.6% in the intermediate-risk to high-risk group at 42 months of follow-up (P<0.001). For all-cause death, the survival rate was 93.1% in the low-risk group vs. 78.6% in the intermediate-risk to high-risk group at 42 months of follow-up (P=0.002). Multivariate Cox-regression analysis showed that independent predictors of cardiac death were the SYNTAX score (odds ratio 15.90; 95% confidence interval 1.04-244.21) and symptom to onset-to-therapy interval (odds ratio 25.57; 95% confidence interval 1.00-655.96). CONCLUSION: The SYNTAX score is a strong independent predictor of cardiac death in intermediate-risk to high-risk patients with acute STEMI.
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