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Anatol J Cardiol. 2018 Dec;20(6):310-317. doi: 10.14744/AnatolJCardiol.2018.05406. Epub 2018 Sep 17.

Predictive value of baseline C-reactive protein for periprocedural myocardial infraction of higher risk stratifications: A retrospective cohort clinical study.

Author information

1
Department of Cardiology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University; Hangzhou-China. zhujhsrrsh@zju.edu.cn.

Abstract

OBJECTIVE:

It is controversial whether preprocedural elevated high sensitivity C-reactive protein (CRP) could increase the incidence of periprocedural myocardial infraction (PMI) of higher risk stratifications. The primary aim of this study was to evaluate whether preoperative elevated CRP level was related to the incidence of PMI in patients who underwent percutaneous coronary intervention (PCI).

METHODS:

A total of 4,426 patients [66 y (59, 75); 72.3% males] with normal preprocedural cardiac enzymes were prospectively divided into two groups; the elevated CRP group was defined as CRP >3 mg/L, which was approximately 30.4% of the patients. The relationship between CRP and the incidence of PMI was established by multivariate logistic regression analysis, and multivariate linear regression analysis was used to assess the correlation between CRP and the severity of myocardial injury.

RESULTS:

The incidence rates were similar between the two groups with periprocedural myocardial minor necrosis (34.23% versus 32.74%, p=0.607), but significantly differed based on the 2007 (defined as cardiac enzymes >3-fold elevations), 31.25% in high CRP group versus 26.25% in low group [odds ratio (OR) 1.19; p=0.046] and the 2012 universal PMI (defined as cardiac enzymes >5-fold elevations with at least one clinical evidence, such as chest pain, ECG changes or imaging diagnosis of heart ischemia), 19.79% versus 15.35% (OR 1.26, p=0.023); besides, the PMI ratios increased in line with the elevation of CRP (p=0.006 for the 2007 and p=0.011 for the 2012 universal PMI). However, no significant linear relationship was found between CRP and high sensitivity cardiac troponin I peak post-PCI.

CONCLUSION:

Elevated baseline CRP was an independent risk factor for the incidence of the 2007 and the 2012 universal PMI rather than minor necrosis. However, CRP may not correlate with the severity of minor myocardial necrosis in patients with PMI.

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