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Original Article

Brain injury biomarkers in the setting of cardiac surgery: Still a world to explore

, &
Pages 10-17 | Received 07 Oct 2014, Accepted 01 Aug 2015, Published online: 10 Nov 2015
 

Abstract

Background: Brain injury is an important, potentially devastating, complication in cardiac surgery. A significant number of patients suffer perioperative complications involving the central nervous system. Clinical manifestations of brain injury are associated with significantly increased mortality, morbidity and health resource utilization. Serum biomarkers have been studied in cardiac surgery to measure the degree and incidence of brain injury and to improve patient management.

Methods: All relevant studies were identified by computerized searches of PubMed using the following Medical Subject Headings and keywords term: biomarker, cardiac surgery, brain injury and neurological complication.

Results: The biomarkers that appear to be better indicators of brain injury severity in cardiac surgery and its consequences are S100B protein, neuron-specific enolase, glial fibrillary acidic protein, tau protein, matrix metalloproteinase-9, ubiquitin C terminal hydroxylase-L1 and neurofilaments.

Conclusions: These biomarkers, independently of clinical and radiological findings, show global cerebral situation at the cellular level and the degree of brain dysfunction. However, up to date, there is no biomarker entirely suitable for the detection of brain injury after cardiac surgery.

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

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