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Analysis of lipids in non-diabetic patients with acute myocardial infarction
1Department of Medicine, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taiwan, ROC.
Background:
The incidence of postinfarct cardiac events can be reduced through secondary prevention by lipid regulation. The relationship between early-detected lipids and prognosis was investigated prospectively in 97 non-diabetic patients with acute myocardial infarction (AMI).
Methods:
Blood samples were analyzed in five evolving stages of AMI: 1) immediately after admission (< 24 hours after the onset of symptoms); 2) on the second day after admission (< 48 hours after the onset of symptoms); 3) on the seventh day after admission; 4) two weeks after the AMI; and 5) three months after the AMI. Cardiac events, including congestive heart failure, reinfarction, unstable angina, ventricular tachyarrhythmia and sudden cardiac death were evaluated at a mean follow-up of 26 months.
Results:
Serial measurements in 75 cases with complete follow-up showed that all lipids except lipoprotein(a) had a decline in plasma level after patients were admitted to hospital. The concentrations of lipids three months postinfarct approached the admission values. Age, body mass index, vessel number, severity of vessel disease and the initial values of lipids on admission had no influence on postinfarct cardiac events in these patients.
Conclusions:
The results indicate that the plasma levels of lipids detected within 24 hours after AMI can be used as the baseline lipid levels. Nevertheless, the impact of these lipids on the adverse outcomes in non-diabetic AMI patients should be further studied in a large-scale study.