Objective To explore the relations between UA and serum hs-CRP, the effects of early intervention with atovastatin on serum hs-CRP in patients with UA and its clinical significance in the early management of UA. Methods T 60 patients with UA (UA group),53 patients with stable angina (SA group) and 50 healthy controls (control group) were enrolled to the study. The serum hs-CRP levels were measured by particle enhanced immunoturbidimetric assay. UA group were randomly assigned to the atovastatin group and the routine group for a 4-week treatment immediately after admission. Selected coronary artery angiography was performed in 78 patients and 29 healthy controls with Judkin's technique. Results Baseline of hs-CRP in patients with UA was significantly higher than those in SA group and control group ( P