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Clin Chim Acta. 2019 Jan;488:174-178. doi: 10.1016/j.cca.2018.10.040. Epub 2018 Oct 31.

Comparison between creatine kinase MB, heart-type fatty acid-binding protein, and cardiac troponin T for detecting myocardial ischemic injury after cardiac surgery.

Author information

1
Department of Thoracic and Cardiovascular surgery, The Catholic University of Korea, St. Vincent's Hospital, Suwon, Republic of Korea.
2
Department of Laboratory Medicine, The Catholic University of Korea, St. Vincent's Hospital, Suwon, Republic of Korea.
3
Department of Laboratory Medicine, The Catholic University of Korea, St. Vincent's Hospital, Suwon, Republic of Korea. Electronic address: yeongsik@catholic.ac.kr.

Abstract

BACKGROUND:

Heart-type fatty acid-binding protein (H-FABP) is a cytoplasmic protein and is released form necrotic cardiac myocytes, as well as ischemic cardiac myocytes. In this study, we compared creatine kinase MB (CK-MB), H-FABP, and cardiac troponin T (cTnT) after coronary artery bypass grafting (CABG), heart valve surgery, or septal defect surgery to evaluate the difference in detecting myocardial injury between three markers.

METHODS:

A total of 69 patients (CABG, 32; valve surgery, 27; and septal defect surgery, 10) were prospectively enrolled. Blood samples were taken at specific intervals.

RESULTS:

Mean amount (AUC0-72h) of CK-MB and cTnT released for 72 h in the patients with valve surgery were 2446 h·ng/ml and 93.2 h·ng/ml, which were significantly larger than those in the patients with CABG or septal defect surgery (p < .05). Mean amount (AUC0-72h) of H-FABP released for 72 h in the patients with CABG was 1939 h·ng/ml, which was significantly larger than that in the patients with septal defect surgery (700.1 h·ng/ml) (p < .05).

CONCLUSION:

H-FABP would be a more useful marker for detecting myocardial ischemic injury than CK-MB and cTnT. CK-MB and cTnT would be more sensitive to myocardial injury with surgical trauma than with ischemic injury in the patients with cardiac surgery.

KEYWORDS:

CABG; H-FABP; Heart-type fatty acid-binding protein; Septal defect surgery; cTnT

PMID:
30389460
DOI:
10.1016/j.cca.2018.10.040
[Indexed for MEDLINE]

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