Complexity of coronary artery disease and the release of cardiac biomarkers after CABG

Author:

Pölzl Leo,Lohmann Ronja,Sterzinger Philipp,Nägele Felix,Hirsch Jakob,Graber Michael,Engler Clemens,Eder Jonas,Abfalterer Hannes,Ulmer Hanno,Griesmacher Andrea,Grimm Michael,Bonaros Nikolaos,Ruttmann-Ulmer Elfriede,Holfeld Johannes,Gollmann-Tepeköylü Can

Abstract

ObjectiveIn patients with complex coronary artery disease (CAD) undergoing cardiac surgery, myocardial protection might be impaired due to microvascular obstruction, resulting in myocardial injury and subsequent biomarker release. Therefore, this study investigated the correlation between the complexity of CAD, reflected by the SYNTAX Score, and the release of cardiac biomarkers after CABG.MethodsIn a consecutive series of 919 patients undergoing isolated CABG SYNTAX scores I and II were calculated to assess the complexity of CAD. Levels of high sensitivity cardiac troponin T (hs-cTnT) and creatine kinase-myocardial band (CK-MB) were routinely measured once before and serially after surgery. Patients were divided into tertiles according to their SYNTAX Scores I and II. Spearman correlations and regression models were performed to measure the degree of association between the release of hs-cTnT and CK-MB and the SYNTAX Scores.ResultsPatients with a higher SYNTAX Score I had more comorbidities reflected in a higher EuroSCORE II. Preoperatively, higher levels of cardiac biomarkers were found in patients with higher SYNTAX Score II. No correlation was observed between hs-cTnT, CK-MB and SYNTAX Score I or II. Regression models did not show any association between cardiac biomarkers and the complexity of CAD.ConclusionThe complexity of CAD is not associated with the release of cardiac biomarkers after CABG. Factors influencing postoperative biomarker release need to be elucidated in future trials to include postoperative biomarker release into risk stratification models predicting outcome after cardiac surgery.

Publisher

Frontiers Media SA

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