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Re: Having a baby after a seed implant
-----Ursprüngliche Nachricht-----
Von: Gibbs, S Julian <s.julian.gibbs@vanderbilt.edu>
An: Radsafe Mail list <radsafe@list.vanderbilt.edu>
Datum: Samstag, 21. Juli 2001 21:13
Betreff: Re: Having a baby after a seed implant
>I had intended to stay out of this debate. However, a few
>technical corrections are in order.
>First, it is not our business to advise the patient of the
>ethical aspects of conceiving additional children at his
>age. We are not physicians. Our business is to advise
>(typically to the patient's physician) of the radiation
>risk involved.
I totally disagree. We (or at least I) are not the typical one track minded
idiots our counterparts (greens and the like) want to have us and describe
us in the mass media, just clinging to one very narrow minded question and
neglecting everything outside and the impact our work may have. We are human
beings and therefore we are not only entitled, but obliged to have an
opinion and to utter it about such questions like a 67 year old "man"
wanting to foster a child - even after a prostate implant treatment. Are you
implementing that there should be given a - strictly radiation risk based -
advice that he should foster a child 2, 5, 10, 30, 35, 36 days after
treatment? Shame about you! The only advice for a 67 years old man can be:
Forget it. Whether he had a prostate treatment or not. Therefore any
question to a radiation protection professional is obsolete. I hope you
would tell this a medical doctor asking you this question.
I recognize that until now, no answer has been given as to the waiting time
for younger men in reproductive age, who unfortunately had to undergo this
treatment. This would probably help many men and physicians.
The discussions about this topic will not help anybody. Therefore this is my
last message concerning the 67 year old man who wants to foster a
child.------Sorry I forgot, the "problem" is the prostate implant.......
Franz
>Two lines of events can happen to spermatogenesis from
>irradiation of the testis:
>1. Early stages (e.g., spermatogonia) are most sensitive to
>the lethal effects of radiation. These are deterministic
>effects. If the dose is sufficient, there will be a period
>of reduced fertility or even sterility, which will occur
>some weeks to months postexposure. The maturation time for
>human sperm, from spermatogonia A to mature spermatozoa, is
>about 10 weeks.
>2. Late stages, especially mature spermatozoa, are mose
>sensitive to minor alteration in DNA, typically called
>point mutations. Thus, the period immediately after
>exposure is at greatest risk of passage of a mutation to
>the offspring.
>From the standpoint of genetic effects of radiation, the
>patient should be advised to refrain from conception until
>there is near complete turnover of the cells in the
>spermatogenic process.
>
>***********************************************************
>S. Julian Gibbs, DDS, PhD Voice: 615-322-1477
>Professor, Emeritus FAX: 615-322-1474
>Dept. of Radiology & Radiological Sciences
>Vanderbilt University Medical Center
>209 Oxford House
>Nashville TN 37232-4245 Email:j.gibbs@vanderbilt.edu
>***********************************************************
>The American Republic will endure until the day Congress
>discovers that it can bribe the Public with the Public's money."
> Alexis de Tocqueville
> Democracy in America
>
>
>
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