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Fibrinolytic Parameters and Lipoprotein(a) in Young Women with Myocardial Infarction

University Medical Center, Trnovo Hospital of Internal Medicine, Department for Vascular Diseases, Ljubljana, Slovenia.

Mio abovi, MD, PhD

University Medical Center, Trnovo Hospital of Internal Medicine, Department for Vascular Diseases, Ljubljana, Slovenia.

Polona Peternel, MD, PhD

University Medical Center, Trnovo Hospital of Internal Medicine, Department for Vascular Diseases, Ljubljana, Slovenia.

Mojca Stegnar, PhD

University Medical Center, Trnovo Hospital of Internal Medicine, Department for Vascular Diseases, Ljubljana, Slovenia.

Impaired fibrinolysis and elevated lipoprotein(a) (Lp[a]) are possible nonclassic risk factors for myocardial infarction (MI) at young age. The fibrinolytic system in young women with MI has not been evaluated yet and the role of Lp(a) is still controversial. The authors determined fibrinolytic parameters and Lp(a) in premenopausal women (mean age 42 ±3 years, n = 22) 0.5 to 6 (mean 3.5) years after MI, who were all without severe classic risk factors and had an otherwise low risk for MI. Elevated levels of tissue type plasminogen activator (t-PA) (p < 0.05) were measured in comparison to 52 age-matched controls; no difference was found in plas minogen activator inhibitor, plasminogen, fibrinogen, euglobulin clotting time and D-dimers. Significantly more MI patients had Lp(a) levels greater than 300 mg/L compared to controls (36% vs 13.5%, p < 0.05). The combination of elevated Lp(a), mild hyperlipidemia, and nonsevere smoking was found in 62.5% of MI patients who had elevated levels of Lp(a), in 23% of all women with MI, and in none of the controls. Elevated t-PA is probably only a marker of increased risk of MI, whereas elevated Lp(a) probably has a causative role. A combination of elevated Lp(a), hyperlipidemia, and nonsevere smoking seems to be a high-risk profile, rela tively common in young women with MI.

Angiology, Vol. 53, No. 2, 157-163 (2002)
DOI: 10.1177/000331970205300205


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