Carotid atherosclerosis in men with low levels of HDL cholesterol.
OBJECTIVE
A low HDL cholesterol (HDL-C) frequently occurs in conjunction with a desirable LDL cholesterol (LDL-C) and is a risk factor for coronary heart disease (CHD). Additionally, the presence of carotid atherosclerosis is a strong and independent predictor of morbidity and mortality in patients with CHD. This article describes the prevalence and correlates of sonographically detected carotid atherosclerosis in men with low levels of HDL-C and CHD but without elevated levels of LDL-C or total cholesterol.


METHODS
High-resolution B-mode ultrasonography was used to quantify intima-media wall thickness (IMT) in the common and internal carotid arteries and at the carotid artery bifurcation in 202 randomly selected male veterans with CHD and low levels of HDL-C who are participating in the VA HDL Intervention Trial. Ultrasonographic measurement of carotid artery wall stiffness was determined in a subset of 94 of these individuals.


RESULTS
The mean maximum and single greatest carotid artery IMT measurements were 1.41 and 2.58 mm, respectively. The prevalence of ultrasound-detected carotid atherosclerosis as defined by a mean maximum IMT > or = 1.3 mm was 58.9% and by single maximum IMT > or = 1.5 mm was 87.1%. IMT was associated with increased age, lower extremity arterial disease, systolic blood pressure, and ultrasonographically measured carotid artery stiffness.


CONCLUSIONS
Men with low levels of HDL-C and CHD but without elevated LDL-C or total cholesterol have a very high prevalence of ultrasound-detected carotid artery atherosclerosis.
Wilt
T J
TJ
Section of General Internal Medicine, Minneapolis Veterans Affairs (VA) Medical Center, Minneapolis, MN 55417, USA. wilt,timothy@minneapolis.va.gov
Rubins
H B
HB
Robins
S J
SJ
Riley
W A
WA
Collins
D
D
Elam
M
M
Rutan
G
G
Anderson
J W
JW
D000368:Aged; D001161:Arteriosclerosis / Q000097:blood* / Q000000981:diagnostic imaging / Q000453:epidemiology; D002339:Carotid Arteries / Q000000981:diagnostic imaging / Q000503:physiopathology; D002340:Carotid Artery Diseases / Q000097:blood* / Q000000981:diagnostic imaging / Q000453:epidemiology; D008076:Cholesterol, HDL / Q000097:blood*; D004311:Double-Blind Method; D004548:Elasticity; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D017539:Tunica Intima / Q000000981:diagnostic imaging; D017540:Tunica Media / Q000000981:diagnostic imaging; D014463:Ultrasonography
D008076:Cholesterol, HDL