Re: Strontium eye applicator

[carol marcus <csmarcus@ucla.edu>]

At 05:34 PM 12/23/99 -0600, you wrote:
>Carol,
>Thank you for the detailed explanation of how this device is used to treat
>disease.  It is very helpful for all of us to remember exactly why the
>nuclear genie appeared so promising at the beginning of this century.  When
>used appropriately it can help define the problem and or provide a cure.
>
>Merry Christmas 
>
>Andy Tompkins
>Woodstock, GA
>
>jatalbq@mindspring.com
>
>At 10:10 AM 12/23/99 -0600, you wrote:
>>At 08:21 AM 12/23/99 -0600, you wrote:
>>>At 10:18 PM 12/22/1999 -0600, mark sasser wrote:
>>>>
>>>>why do you want to use it on a poor animal! If you
>>>>want know the Effects Use your self. do you ask the
>>>>animal if he wants to be used on Him? I am sorry... I
>>>>feel for you!
>>>
>>>>--- marvinturkanis@alum.mit.edu wrote:
>>>>> Looking for a strontium-90 applicator with an
>>>>> intensity for 2500 -3500 cGy for veterinary ocular
>>>>> use.
>>>********************************************
>>>December 23, 1999
>>>Davis, CA
>>>
>>>I believe that the applicator is used for treatment of serious pathological
>>>conditions such as melanoma of the eye. In people melanoma of the eye is
>>>routinely treated with high energy proton beams. This beats surgical
>>>removal of the affected eye.
>>>
>>>Otto
>>>
>>>
>>>		*****************************************************
>>>		Prof. Otto G. Raabe, Ph.D., CHP
>>>              Institute of Toxicology & Environmental Health (ITEH)
>>>		   (Street address: Building 3792, Old Davis Road)
>>>		University of California, Davis, CA 95616
>>>		Phone: 530-752-7754  FAX: 530-758-6140
>>>		E-mail ograabe@ucdavis.edu
>>>              *****************************************************
>>>************************************************************************
>>>The RADSAFE Frequently Asked Questions list, archives and subscription
>>>information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
>>>
>>
>>
>>
>>Dear Radsafers:
>>
>>Sr-90 "eye" probes are used to stop the growth of pterygia, abnormal fleshy
>>growths that spread over the eye which can obstruct vision.  These growths
>>often occur in geographic areas where the eye is subject to excessive dust
>>or foreign material.
>>
>>An existing pterygium is surgically removed, and the tissue which gave rise
>>to the growth is "sterilized" with the radiation from the Sr-90 so that
>>regrowth is averted.  Sr-90 eye probes are not used to treat eye cancer.  
>>
>>Some physicians have used the eye probes to treat superficial skin cancers,
>>and claim good results.  However, NRC made it illegal to do so if one has an
>>NRC license, claiming that the ACMUI stated that it was not safe or
>>effective.  In fact, neither the ACMUI nor its Chairman was ever asked this
>>question.  According to the FDA labeling of the device, it is appropriate to
>>treat any superficial lesion;  however, NRC has refused to honor 21 CFR
>>892.5650.  When NRC was repeatedly informed by me that nothing in the FDA
>>device labeling precluded use for superficial skin cancers, NRC responded in
>>its usual manner---it refused to answer the letters.  As I was a member of
>>the ACMUI at the time, AND was Chair of FDA's Radiologic Devices Advisory
>>Panel, one might think a response would have been appropriate.
>>
>>Ciao, Carol
>><csmarcus@ucla.edu>
>>
>>************************************************************************
>>The RADSAFE Frequently Asked Questions list, archives and subscription
>>information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
>> 
>
>************************************************************************
>The RADSAFE Frequently Asked Questions list, archives and subscription
>information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
>


I guess that makes me a nuclear genie addict.  Happy Holidays to you, too.

Ciao, Carol

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