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  • Title: Impact of multi-vessel therapy to the risk of periprocedural myocardial injury after elective coronary intervention: exploratory study.
    Author: Chen ZW, Yang HB, Chen YH, Ma JY, Qian JY, Ge JB.
    Journal: BMC Cardiovasc Disord; 2017 Feb 27; 17(1):69. PubMed ID: 28241795.
    Abstract:
    BACKGROUNDS: Periprocedural myocardial injury (PMI) after elective percutaneous coronary intervention (PCI) significantly influences the prognosis of coronary artery disease (CAD). However, it was unclear whether the occurrence of PMI was associated with a series of controllable factors, such as PCI strategy or severity of CAD. METHODS: A total of 544 consecutive stable CAD patients underwent elective PCI were enrolled. The main outcome is PMI, defined as troponin T after PCI was at least one value above the 99th percentile upper reference limit. Major adverse cardiac events (MACE), including all-cause death, repeat myocardial infarction and target vessel revascularization were record in the period of follow-up. Univariate and multivariate analysis was applied to assess predictors for the occurrence of PMI. RESULTS: The incidence of PMI was 38.8% in the study. Compared with non-PMI patients (n = 333), PMI patients (n = 211) had more diseased vessels, higher Gensini and Syntax score. Meanwhile, there were higher incidence of MACE in PMI groups (9.5% vs. 3.2%, P < 0.01). We found that PMI patients underwent higher proportion of multi-vessel PCI simultaneously (32.2% vs. 10.5%, P < 0.01) and had more stents implanted (1.8 ± 0.8 vs. 1.4 ± 0.6, P < 0.01). Importantly, after simultaneously adjusted by other factors (such as age, diabetes, total cholesterol, number of diseased vessels, Gensini score and stent length), the risk of PMI was still increased 84% by multi-vessel PCI independently (OR = 1.654, 95% CI = 1.004-2.720, P < 0.05). CONCLUSIONS: The phenomenon of PMI occurred more commonly in stable CAD patients underwent multi-vessel PCI. Multi-vessel international therapy could increase the risk of PMI in elective PCI.
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