Prognostic Value of C-Reactive Protein in Unstable Angina

To the Editor: We appreciate the work by Ferreiros et al1 in confirming the strong prognostic value of C-reactive protein (CRP) in unstable angina. However, we believe that some issues should be raised. First, the authors did not exclude patients with Braunwald type C unstable angina and they did not provide an explanation of this choice. Class C unstable angina has a strong prognostic role in prospective studies.2 3 Confirming this fact, in their Table 1, the time between prior acute myocardial infarction (AMI) and the occurrence of unstable angina was not specified, and the group of …