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Heart and Vessels

, Volume 21, Issue 5, pp 309–314 | Cite as

The use of human heart-type fatty acid-binding protein as an early diagnostic biochemical marker of myocardial necrosis in patients with acute coronary syndrome, and its comparison with troponin-T and creatine kinase–myocardial band

  • Ozcan Ruzgar
  • Ahmet Kaya BilgeEmail author
  • Zehra Bugra
  • Sabahattin Umman
  • Ercument Yilmaz
  • Beste Ozben
  • Berrin Umman
  • Mehmet Meric
ORIGINAL ARTICLE

Abstract

Heart-type fatty acid-binding protein (H-FABP), a new biochemical marker of sarcolemmal injury due to acute myocardial ischemia, can be used as a tool in early diagnosis and management of patients at high risk. The aim of this study was to determine the early diagnostic value of H-FABP in acute coronary syndrome (within 6–24 h of chest pain) and to compare it with troponin-T (TnT) and creatine kinase–myocardial band (CK-MB) for accuracy. The study consisted of 40 consecutive patients with chest pain admitted to the coronary care unit with the diagnosis of suspected acute coronary syndrome. The patient population consisted of two groups according to the time of admission; the first group (26 patients) included patients admitted within 6 h of chest pain, and the second group (14 patients) included patients admitted within 6–24 h of chest pain. The blood samples for H-FABP, TnT, and CK-MB were obtained at admittance, at the 6th, and at the 24th hours for the first group, and at admittance and at the 24th hours for the second. Statistical analysis was performed among the 26 patients for the first 6 h values, and among all 40 patients for the values obtained within 6–24 h and at the 24th hour. The patients were then divided into groups according to the changes in the electrocardiogram (ECG) and cardiac enzymes as unstable angina pectoris, non-ST elevation myocardial infarction (MI), and ST-elevation MI. Coronary angiography was performed in 38 (95%) patients. Sensitivity of TnT, CK-MB, and H-FABP in the first group (within 6 h of chest pain) were 38%, 76%, and 95% respectively. The sensitivity of H-FABP was significantly higher than TnT (P = 0.014). Sensitivity of TnT, CK-MB, and H-FABP tests in the second time period (within 6–24 h of chest pain) were 100%, 90%, and 91% respectively. In this time period, the sensitivity of TnT was higher than H-FABP, but it was statistically insignificant. At the 24th hour, sensitivity of TnT was 100%, CK-MB 90%, and H-FABP 27.3%, and TnT and CK-MB were more sensitive than H-FABP for the whole group (P = 0.002). In the first group (within 6 h of chest pain) H-FABP positivity was slightly but insignificantly higher in patients with two- and three-vessel disease compared with those with one-vessel disease (60.7% and 33.3%, P = 0.19) and in the same group, patients who underwent primary coronary intervention had a significantly higher H-FABP positivity than others (80%, 32%, P = 0.02). Within 6–24 h of chest pain, H-FABP positivity was 80% in patients with one-vessel disease and 71.4% in patients with two- and three-vessel disease (P = 0.69). Within 6–24 h, positivity of H-FABP reached a peak value of 100% in patients who underwent primary coronary intervention, while H-FABP was positive in 60% of the others (P < 0.001). We conclude that within the 6 h of acute coronary syndrome, H-FABP seems to be a more sensitive biochemical marker than TnT in the early detection of ischemic myocardial necrosis. But after the first 6 h of the onset of chest pain the sensitivity of H-FABP decreases, and this marker should not be used alone in patients admitted 24 h after the onset of chest pain.

Key words

Acute coronary syndrome Biochemical marker Risk stratification Heart-type fatty acid-binding protein 

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Copyright information

© Springer-Verlag Tokyo 2006

Authors and Affiliations

  • Ozcan Ruzgar
    • 1
  • Ahmet Kaya Bilge
    • 1
    Email author
  • Zehra Bugra
    • 1
  • Sabahattin Umman
    • 1
  • Ercument Yilmaz
    • 1
  • Beste Ozben
    • 1
  • Berrin Umman
    • 1
  • Mehmet Meric
    • 1
  1. 1.Department of Cardiology, Istanbul Faculty of MedicineIstanbul University, Kardiyoloji Anabilim DaliIstanbulTurkey

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