Chest pain is one of the most common causes of access in the Emergency Room, and it can be a clinical manifestation of a broad spectrum of diseases including those 'time dependent' conditions such as acute coronary syndrome (ACS). Diagnosis or exclusion of acute myocardial infarction (AMI) is a daily challenge in the emergency department (ED), especially when classic clinical criteria and ECG alone are unable to make the diagnosis. The ED physician has the extremely delicate task of managing patients with chest pain and being able to frame them correctly; therefore, he needs to make differential diagnosis since chest pain can be caused by non-cardiac vascular events but also extra-cardiovascular events, such as pulmonary, neurological, osteoarticular, gastrointestinal and psychological. Recently, the importance of inflammatory processes and endothelial damage in cardiovascular disease has been highlighted, and consequently the focus has been on new markers, in a multimarker approach in which the strengths of each are combined together to provide an optimal solution to a clinical problem. The data suggest how a future integration of these biomarkers in the routine approach to the patient with acute chest pain in the ED might allow a better patient stratification and proper management, allowing the clinician to make an early safe discharge or a timely admission for those who deserve in-depth diagnostic-therapeutic investigation.