BP, fatty deposits not main cause of bulging arteries

Discussion in 'Health and medical' started by Dr. Jai Maharaj, Sep 19, 2003.

  1. BP, fatty deposits not main cause of bulging arteries

    ANI
    Wednesday, September 17, 2003

    Washington - Contrary to earlier beliefs, high blood
    pressure, fatty deposits and other risk factors are not
    the major reasons for aortic aneurysm or the ballooning
    of blood vessels near the heart, according to a Mayo
    Clinic study.

    The study found that age, gender and body size together
    accounted for one-third or more of the cases of aortic
    dilatation, while atherosclerosis and related risk
    factors only explained 3 percent. The findings of the
    study have been published in the Journal of the American
    College of Cardiology.

    "Atherosclerotic plaques and the risk factors that cause
    them, including hypertension, classically have been
    considered important potential causes of the expansion of
    the aorta," says Bijoy Khandheria, a Mayo Clinic
    cardiologist and lead author of the study.

    "Intuitively, it makes sense that high blood pressure
    would stretch the vessel walls and make them more likely
    to become enlarged. This study shows that while these
    risk factors are highly important in a host of diseases
    and conditions, they are bit players when it comes to
    causing the dilatation of the aorta that can lead to
    aneurysm," he says.

    The researchers studied the expansion of the aorta in a
    sample of 581 Olmsted County, Minn., residents using
    transesophageal echocardiography (TEE). TEE is similar to
    fetal ultrasounds used during pregnancy and conventional
    echocardiographic heart imaging. Instead of coming from
    outside of the body, however, the ultrasound waves in TEE
    are emitted from a probe that is inserted down the throat
    giving much clearer images of the great blood vessels
    surrounding the heart.

    "There has been a tendency recently to refer to aneurysms
    as 'athersclerotic aneurysms,'" explains Khandheria. "But
    the fact that plaques, even complex or severe ones, are
    very common, while aneurysms are rare, supports the
    conclusion that atherosclerosis and its risk factors are
    not likely to blame for aneurysms in the major blood
    vessels of the chest."

    Researchers say that the other factors and processes,
    including genetic diseases similar to Marfan syndrome,
    seem to be more important. "In addition to providing
    reference values to physicians on the normal range of
    aorta measurements in a community, this study should spur
    further investigation into those other causes," he says.

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  2. J and b 50

    J and b 50 Guest

    What is on these web sites pertaining to bulging arteries?
     
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