Lectures

Angiodysplasia

by Carlo Raj, MD
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    We'll begin our discussion by looking at Angiodysplasia. Allow the name to speak to you. "Angio" means blood vessels. Lots of blood vessels in your GI system. And then blood vessels are undergoing dysplasia. Another time in which you've heard of your dysplastic changes taking place in your blood vessel is that young lady approximately 30 years of age who is then presenting with secondary hypertension and upon aescultation, you hear renal bruits. That is referring to as your fibromuscular dysplasia. Right? So you've heard of dysplasia before, in fact you've heard of dysplasia take place in blood vessels before and that was the renal artery that was taking place in that young female. Here however we have acquired vascular ectasias associated with aging. So what happens is that the blood vessels are in fact undergoing dysplastic change in actual dilation and may result in a flat, red lesion seen on colonoscopy mostly in the cecum and the ascending colon. Therefore resulting in painless rectal bleeding. Associated with chronic renal failure and also valvular heart disease such as A–aortic, S–stenosis. Angiodysplasia, a common cause, a very common cause of painless rectal bleeding in the United States. Management Cautery during colonoscopy of acute bleeding. Iron supplementation Because you can expect that bleeding, of course resulting in iron deficiency. Estrogen therapy Remember estrogen is prothrombotic. You want to stop this bleeding. If you take a look at the picture, you'll notice that there is, upon colonoscopy, you'll notice that there is blood patches just as you would expect when you're looking for the source of your painless rectal bleeding in an elderly patient. These are ectasias that are taking place of the blood vessels resulting in rupture and then bleeding....

    About the Lecture

    The lecture Angiodysplasia by Carlo Raj, MD is from the course Small and Large Intestine Diseases.


    Included Quiz Questions

    1. Flat bright red lesions mostly on caecum and ascending colon
    2. Golden brown membrane like patches in the colon
    3. Cobblestone appearance of colon
    4. Red, velvety and friable diffusely involved all over the colon
    5. Ulceroproliferative like growth in the sigmoid colon
    1. Aortic stenosis
    2. Aortic regurgitation
    3. Mitral stenosis
    4. Mitral regurgitation
    5. Patent ductus arteriosus
    1. Plain X-ray
    2. Identifying the lesions of angiodysplasia on colonoscopy
    3. Cautery of angiodysplastic lesions visualized on colonoscopy
    4. Iron supplementation
    5. Estrogen therapy
    1. Vascular ectasia
    2. Hemangioma of blood vessel
    3. Infarction
    4. Thrombus formation in the blood vessel
    5. Embolization of the blood vessel

    Author of lecture Angiodysplasia

     Carlo Raj, MD

    Carlo Raj, MD


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