[The importance of lipoprotein(a) as a predictive factor of coronary atherosclerosis].
OBJECTIVE
The predictive value of lipoprotein(a), Lp(a), for coronary artery disease, is strongly suspected, though unproven. The normal serum level is 0.3 g/l. We searched for correlations between serum Lp(a) levels and coronary artery disease in a population of patients hospitalized in a general cardiology unit.


METHODS
Serum Lp(a) was assayed in all patients consecutively hospitalized during 1994 in the Valence hospital cardiology unit. Two groups were distinguished: patients with coronary artery disease (n = 444) and those presumed free of coronary artery disease (n = 555). Coronography were performed when required. Serum Lp(a) levels were compared for the following variables: age, sex, smoking habits, blood pressure, total cholesterol, HDL and LDL-cholesterol, triglycerides and apolipoproteins A1 and A2. Univariate, then multivariate analysis were performed first patients of all ages, then for those aged more and less than 60 years.


RESULTS
Univariate analysis demonstrated that Lp(a) > 0.3 g/l was associated with coronary heart disease (OR = 1.33; p = 0.03), although this correlation was no longer significant after adjustment for other known risk factors (OR = 1.28; p = 0.07), except in the subgroup of patients over 60 years of age (OR = 1.37; p = 0.04).


CONCLUSIONS
There was a non-significant trend favoring an association between serum Lp(a) level > 0.3 g/l and the development of coronary artery disease.
Service de Cardiologie, Centre hospitalier de Valence.
C
C
Mestre
A
A
Grand
Y
Y
Fournis
N
N
Mamelle
E
E
Landrault
N
N
Cambrillat
D000328:Adult; D000367:Age Factors; D000368:Aged; D000704:Analysis of Variance; D016632:Apolipoprotein A-I / Q000097:blood; D016633:Apolipoprotein A-II / Q000097:blood; D001794:Blood Pressure; D002784:Cholesterol / Q000097:blood; D008076:Cholesterol, HDL / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000097:blood*; D005260:Female; D005544:Forecasting; D006801:Humans; D017270:Lipoprotein(a) / Q000097:blood*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D012307:Risk Factors; D012737:Sex Factors; D012907:Smoking / Q000097:blood; D014280:Triglycerides / Q000097:blood
D016632:Apolipoprotein A-I; D016633:Apolipoprotein A-II; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D017270:Lipoprotein(a); D014280:Triglycerides; D002784:Cholesterol
Importance de la lipoprotéine(a) comme facteur prédictif de l'athérosclérose coronarienne.