From: Dieter <[EMAIL PROTECTED]>

True on the prednisalone but it is a cortisone.

I am currently making some enquiries on the use of alternate IV contrast

agents for CT and will let you know my findings in a few days.

It is not an orgainsed study but someone could do a paper on the 
subject.  I haven't the time.

Dieter

At 09:00 21/07/2003 +0200, you wrote:
>Woops prednisalone isnt, an anti histamine .. we use Chlorpheniramine 
>"piriton" in our hospital but I agree reactions to contrast seem very 
>unpredictable .. like you I have seen people who ewere previously OK be

>bad and and previously reacted OK second like around... The question 
>about shelfish I think comes from a frequent query on the xray2000 
>website from Students some uni is setting a question involving the 
>shelfish
>
>Cheers
>
>Nick
>
>
>Dieter <[EMAIL PROTECTED]> wrote on 21.07.2003, 00:26:25:
> > As far as I was aware, the iodine bound in non-ionic iv contrast has

> > different reactive properties to the iodine found in shellfish.  I 
> > was under the impression that a shellfish allergy was not 
> > necessarily as precurser to an iodinated iv contrast allergy. We 
> > injected a patient a few days ago that had an allergy to topical 
> > iodine.  She is still fine and came back in a few days later with no

> > ill
> > Sender: [EMAIL PROTECTED]
> > Precedence: bulk
> > Reply-To: AIRNEWS
> >
> >  From: Dieter
> >
> > effects to collect her films.
> >
> > We have also had a case of a previuos anaphylatic reaction (put the 
> > patient in ICU) to ionic contrast (cardiac cath).  While the patient

> > was still intubated the patient came down for a abdo/pelvis CT and 
> > was injected with
> > 100 mls of non-ionic contrast (the ICU staff failed to tell
radiology
> > about
> > the previuos reaction and had not documented it in the
> > notes.....oops).  The patient showed no indication of rection to
that
> > injection and recieved another a week later.
> >
> > I personally would be hesitant injecting anyone with any previous 
> > known allergy to any type of iodine unless absolutely necessary and 
> > would take
> >
> > the precaution of predosing with antihistamines ie prednisolone and 
> > the day before and hydrocortisone on the day of examination.
> >
> > Bring on cheaper Gadolinium so we can use that as an alternative.
> >
> > Dieter Halden
> > Nepean Hospital
> > NSW CTAP
> >
> > At 08:45 18/07/2003 +1000, you wrote:
> > >  From: Geoffrey Dick
> > >
> > >Is there any documented evidence that there is a relationship 
> > >between allergy to seafood/shellfish and an increased chance of an 
> > >iv contrast reaction?  Your thoughts on the matter
> > >
> > >Geoffrey Dick
> > >CT Supervisor Dandenong Hospital
> > >Ext:48193
> > >03-9554-8193




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