Cardiologist Robert Superko in Berkeley
Heart Lab in Alameda , California , offers blood tests that go
beyond the standard cholesterol check levels.
If his patient’s cholesterol levels are LDL Pattern B, (the bad
cholesterol) the size of the particles becomes very important. If they are extra small, they are more likely
to produce a heart attack. He says it
may be because the smaller particles slip easily into the walls of the
arteries, where they more readily become arterial plaque. Pattern B patients also tend to have
associated problems, including HDL (the good cholesterol) low levels and high
triglycerides. Their HDL may be less
efficient at its job of ferrying away bad cholesterol. What’s more, their blood vessels are prone to
spasms, which can rupture plaque and “that can spell trouble,” says
Superko. Some research suggests as many
as one in three American men and one in seven American women have genes that
predispose them to LDL, Pattern B. “Luckily,
it is relatively easy to treat, requiring a diet low in saturated fat, exercise
and regular doses of the B vitamin niacin to increase the size of the LDL
particles. But only take high doses of
niacin under a doctor’s supervision because too much can cause serious side
effects,” adds Dr. Superko. “It could
clear up in as little as six months but there is a subtle villain, inflammation
if the immune system launches a misguided attack within the vessels of the
heart. A smoldering inflammation can lead
to the formation of plaque that is prone to rupture that can result in blood
clots. A simple blood test can tell you
if you are at risk by measuring levels of a molecule called C-reactive
protein. Eleven studies have now shown
that people with high levels of CRP are at higher risk of having a heart
attack.
One 71 year old patient had slightly high
blood pressure and was active and healthy and any doctor might just remind her
to exercise and shed a few pounds, but when she saw the doctor the next year,
she left with a prescription for a cholesterol lowering drug. Under new guidelines, her low risk was now
borderline and needed medication. New
standards say to triple cholesterol drugs from 13.5 million to 36 million,
since many more Americans are having heart disease problems than had been
recognized,” says James Cleeman, executive director of the National Cholesterol
Education Program panel that developed the guidelines. “In countries with little heart disease, Cleeman
adds, “the average levels are considerably lower in countries that have little
heart disease.” Diet could play an
important part.
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