Lectures

Management of Primary Hyperparathyroidism

by Carlo Raj, MD
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    The management of primary hyperparathyroidism, what you do here is you, pre-operatively, you try to localizing getting baseline of your PTH. Do a Sestamibi Scan. I showed you a picture of a Sestamibi Scan where there was a solitary adenoma of the parathyroid. If you’ve forgotten, please take a look at the previous discussion where I very much showed you that, that’s important. Ultrasound could also help with establishing your baseline. Indication of parathyroidectomy, so if you actually need to remove the parathyroid because of this excess calcium, what are the indications? Symptomatic hypercalcemia; calcium at least 1 milligram per decilitre greater than normal; age under the age of 50, 24 urine calcium of being greater than 400 milligrams. The bone density here, unfortunate well, not show enough bone because of increased osteoclastic activity and the calcium stones are found in the kidney. All of these to you represent hypercalcemia. Whenever your patient starts becoming symptomatic with hypercalcemia and you know for a fact that it’s being caused by primary hyperparathyroidism, it’s time for you to start thinking about moving the parathyroid now. What you find to be interesting is anytime that you start doing surgery upon an organ, what is the possibility always? There is every possibility that you might take out too many parathyroids; you might take out too much of that organ is my point. If you take out too much of the organ or you might have collateral damage, say there’s a nerve passing through there, but in this case, if you take out too much parathyroid, then your patient is rendered hypoparathyroid. And if the patient is suffering from hypoparathyroidism, obviously, hypocalcemia maybe tetany. A surgical excision, do… immediate 10 minutes after excising, what you think is the adenoma. The PTH half-life is only about...

    About the Lecture

    The lecture Management of Primary Hyperparathyroidism by Carlo Raj, MD is from the course Parathyroid Gland Disorders.


    Included Quiz Questions

    1. Calcium at least 100mg/dL greater than normal
    2. Symptomatic hypercalcemia
    3. Patient age over 50
    4. 24 hour urine calcium > 400mg
    5. Nephrolithiasis
    1. PTH half life is only 3-5 minutes
    2. PTH can increase drastically when glands are disturbed during surgery
    3. Indicates if thyroid is effected by surgery
    4. Serves as a marker for post-surgical prognosis
    5. Predictably increases by 50% before dropping to normal levels
    1. It is a calcimimetic that produces negative feedback, lowering PTH
    2. It is an inactive analog of PTH, leading to increased calcium excretion
    3. It directly promotes bone mineralization and decreases fractures
    4. It is a calcimimetic that tricks the body into releasing more PTH in order to identify the diseased parathyroid gland
    5. It causes positive feedback on calcium absorption in the gut

    Author of lecture Management of Primary Hyperparathyroidism

     Carlo Raj, MD

    Carlo Raj, MD


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