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  • Title: The predictive value of M30 and oxidative stress for left ventricular remodeling in patients with anterior ST-segment elevation myocardial infarction treated with primary percutaneous coronary intervention.
    Author: Türkoğlu C, Gür M, Şeker T, Selek Ş, Koçyiğit A.
    Journal: Coron Artery Dis; 2016 Dec; 27(8):690-695. PubMed ID: 27479531.
    Abstract:
    BACKGROUND: Left ventricular (LV) remodeling is an important pathophysiological event that develops following acute myocardial infarction and causes LV systolic dysfunction. Mechanisms such as apoptosis, necrosis, and oxidative stress play an important role in LV remodeling. OBJECTIVES: This study aimed to determine the relationship between the development of LV remodeling and the apoptosis marker M30 in patients with anterior ST-segment elevation myocardial infarction (STEMI) who were treated with primary percutaneous coronary intervention (PCI). MATERIALS AND METHODS: This retrospective study included 255 consecutive patients (210 men, 45 women, mean age 54.9±11.8 years) with anterior STEMI who were treated with primary PCI. Blood samples were obtained from each patient at admission and 24 h after admission for measurements of M30, M65, oxidative parameters, and biochemical parameters. Transthoracic echocardiography was performed in each patient within 24 h of infarction and 6 months after infarction. LV remodeling was defined as greater than or equal to 20% increase in end-diastolic volume 6 months after primary PCI. The patients were divided into two groups on the basis of 6 months of post-primary PCI follow-up findings: LV remodeling group and non-LV remodeling group. RESULTS: In all, 60 patients received LV remodeling and 195 did not receive LV remodeling at 6 months after primary PCI. Total oxidative stress, M30 and M65 levels, and the oxidative stress index were significantly higher and the total antioxidant capacity and M65/M30 ratio were lower in the LV remodeling group (P<0.05, for all). Brain natriuretic peptide, M30, and oxidative stress index were independent predictors of LV remodeling (P<0.05 for all). Receiver operating characteristic curve analysis showed that the M30 cut-off value for predicting LV remodeling was 144.9 U/l (80% sensitivity and 77% specificity, P<0.001). CONCLUSION: In patients with anterior STEMI treated with primary PCI, the apoptosis marker M30 might be useful for predicting LV remodeling and subsequent LV systolic dysfunction.
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