RESUMEN
Objective To explore the correlation between the carotid atherosclerosis unstable plaque lipoprotein(a) [ Lp(a)]levels with acute cerebral infarction patients.Methods 120 patients with acute cerebral infarction were selected as the research group,and at the same period,120 health cases were selected as the control group.The level of Lp(a) of the two groups was tested,and neck vascular color dopplar ultrasound examination was conducted.Results The incidence of atherosclerotic plaque in carotid artery and unstable plaques was 70.8％,51.7％,respectively,and significantly higher than that of the control group(25.8％,6- 7％ ) ( x2 =5.12,6.43,all P ＜0.05 ).The Lp(a) level of the research group[ (273.6 ± 221.7 )ag/L] was significantly higher than that of the control group[ ( 81.6 ± 64.9) mg/L ] ( t =6.53,P ＜ 0.05 ).Conclusion High level of LP(a) is the independent risk factor of cerebral infarction.The instability of carotid atherosclerotic plaques is the important cause of cerebral infarction.