Prognostic value of myeloperoxidase in patients with chest pain.

Background: Inflammation is linked to adverse outcomes in acute coronary syndromes. Myeloperoxidase, an abundant leukocyte enzyme, is elevated in culprit lesions that have fissured or ruptured in patients with sudden death from cardiac causes. Numerous lines of evidence suggest mechanistic links between myeloperoxidase and both inflammation and cardiovascular disease.

Troponin T in elders with suspected acute coronary syndromes.

Troponin T (TnT) elevations (> or =0.1 ng/mL) indicate an increased risk of adverse outcomes in patients with acute coronary syndromes (ACS). There is little data on the prognostic significance of TnT in elders with ACS.

Prediction of short- and long-term outcomes by troponin t levels in low-risk patients evaluated for acute coronary syndromes.

Study Objective: Recent reports suggest a short series of cardiac troponin (cTnT) testing effectively identifies patients at risk for cardiac events. However, there are few studies validating this strategy. The purpose of this study was to determine the ability of cTnT levels to predict short- and long-term outcomes in low-risk patients with suspected acute coronary syndromes.