BACKGROUND: The aim of the present study was to investigate the relationship between plasma concentrations of endothelin (ET)-1 and clinical outcome (including mortality) and left ventricular (LV) systolic function in acute myocardial infarction (AMI). METHODS AND RESULTS: The study group comprised 110 consecutive first-AMI patients who were successfully reperfused by primary coronary intervention. Plasma ET-1 concentrations were evaluated 24 h from onset and the patients were divided into 2 groups according to the median value, either a high group (H group: > or = 2.90 pg/ml plasma ET-1; n = 55) or low group (L group: < 2.90 pg/ml plasma ET-1; n = 55). Major complications and LV systolic function were monitored in the 2 groups. Both highly sensitive C-reactive protein (hs-CRP) and brain natriuretic peptide (BNP) showed a significant positive correlation with ET-1 (BNP: r = 048, p < 0.0001, hs-CRP: r = 0.43, p < 0.001). Chronic stage left ventricular ejection fraction (LVEF) and left ventricular end-diastolic volume index (LVEDVI) were significantly poorer in the H group (LVEF: 51+/-15% vs 60+/-13%, p = 0.003, LVEDVI: 74+/-19 ml/m2 vs 66+/-14 ml/m2, p < 0.05). There were significantly more major complications in the H group than in the L group (cardiogenic shock: 18% vs 5%, p = 0.04; cardiac death: 13% vs 0%, p < 0.01). CONCLUSIONS: In the setting of AMI, plasma ET-1 concentrations may be closely related to LV systolic dysfunction and poor patient outcome, including mortality.
BACKGROUND: The aim of the present study was to investigate the relationship between plasma concentrations of endothelin (ET)-1 and clinical outcome (including mortality) and left ventricular (LV) systolic function in acute myocardial infarction (AMI). METHODS AND RESULTS: The study group comprised 110 consecutive first-AMI patients who were successfully reperfused by primary coronary intervention. Plasma ET-1 concentrations were evaluated 24 h from onset and the patients were divided into 2 groups according to the median value, either a high group (H group: > or = 2.90 pg/ml plasma ET-1; n = 55) or low group (L group: < 2.90 pg/ml plasma ET-1; n = 55). Major complications and LV systolic function were monitored in the 2 groups. Both highly sensitive C-reactive protein (hs-CRP) and brain natriuretic peptide (BNP) showed a significant positive correlation with ET-1 (BNP: r = 048, p < 0.0001, hs-CRP: r = 0.43, p < 0.001). Chronic stage left ventricular ejection fraction (LVEF) and left ventricular end-diastolic volume index (LVEDVI) were significantly poorer in the H group (LVEF: 51+/-15% vs 60+/-13%, p = 0.003, LVEDVI: 74+/-19 ml/m2 vs 66+/-14 ml/m2, p < 0.05). There were significantly more major complications in the H group than in the L group (cardiogenic shock: 18% vs 5%, p = 0.04; cardiac death: 13% vs 0%, p < 0.01). CONCLUSIONS: In the setting of AMI, plasma ET-1 concentrations may be closely related to LV systolic dysfunction and poor patient outcome, including mortality.
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