Serum Lactate-A Prognostic Marker of Early Post-Operative Outcome After Off Pump Coronary Artery Bypass Surgery: A Propensity Matched Study

Abstract

Hyperlactatemia is a well-documented marker of systemic hypoperfusion, tissue hypoxia and circulatory failure in the postoperative period following cardiac surgery1. Lactic acidosis after cardiopulmonary bypass (CPB) is indicative of low cardiac output syndrome (LCOS) and is significantly associated with poor prognosis and mortality2. Incomplete revascularization in coronary artery bypass graft (CABG) surgery, insufficient myocardial protection, and coagulation disorders are factors that affect hyperlactatemia3.