Holes - ASD

Well, for those interested (not many, I'm sure), I'm in on tuesday, op
on wednesday, out on thursday.

And ASD stands for Atrial Septal Defect. More commonly known as a PFO.

Now where did I put that helium......

Pete S.

<Pete S.> wrote in message news:4079acad.44930281@news.clara.net...
> Well, for those interested (not many, I'm sure), I'm in on tuesday, op
> on wednesday, out on thursday.
>
> And ASD stands for Atrial Septal Defect. More commonly known as a PFO.
>
> Now where did I put that helium......

Good luck matey - I'll send you a bag of grapes to tuck into afterwards...

On Sun, 11 Apr 2004 20:43:36 GMT, Pete S. wrote:

>Well, for those interested (not many, I'm sure), I'm in on tuesday, op
>on wednesday, out on thursday.

Will they reconnect that tolerance gland too, while you're under? ;o)

BOL
--
ferret
Best before: see end

<Pete S.> wrote in message news:4079acad.44930281@news.clara.net...
> Well, for those interested (not many, I'm sure), I'm in on tuesday, op
> on wednesday, out on thursday.

All the very best to you Pete. Here's to a quick recovery and back in the
water ASAP.

Keith L

<Pete S.> wrote in message news:4079acad.44930281@news.clara.net...
> Well, for those interested (not many, I'm sure), I'm in on tuesday, op
> on wednesday, out on thursday.
>
> And ASD stands for Atrial Septal Defect. More commonly known as a PFO.
>
> Pete S.

All the best Pete, see you soon, maybe in Weymouth when you can continue
your "chat" with the local council officials.

Steve

On Mon, 12 Apr 2004 12:39:25 +0100, "Keith Lawrence"
<fake@hotmail.com> wrote:

><Pete S.> wrote in message news:4079acad.44930281@news.clara.net...
>> Well, for those interested (not many, I'm sure), I'm in on tuesday, op
>> on wednesday, out on thursday.
>
>All the very best to you Pete. Here's to a quick recovery and back in the
>water ASAP.
>
Thanks Keith, ASAP it is then.... Mind you, I've only done 70 dives
this year.

Pete S.

Pete S. wrote:

>Well, for those interested (not many, I'm sure), I'm in on tuesday, op
>on wednesday, out on thursday.
>And ASD stands for Atrial Septal Defect. More commonly known as a PFO.
>Now where did I put that helium......

Pete,

ASD is not the same as a PFO. PFO is normally closed (and can open
under certain circustances), whereas an ASD is open all the time.

I went in 2 years ago for a similar problem. A Ø28mm patch 'solved' my
condition. The heart murmur was suddenly gone as well.

Take some books. Lying absolutely still for 16 hours is very boring.

Good luck.

Steven
+------------------------------------------------+
| Please use steevke at hotmail dot com to reply |
+------------------------------------------------+
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> >Well, for those interested (not many, I'm sure), I'm in on tuesday, op
> >on wednesday, out on thursday.
> >And ASD stands for Atrial Septal Defect. More commonly known as a PFO.
> >Now where did I put that helium......

> ASD is not the same as a PFO. PFO is normally closed (and can open
> under certain circustances), whereas an ASD is open all the time.

Purely pedantically:

An Atrial Septal Defect is a generic term for a hole in the wall between the
atria of the heart (the "atrial septum"). A Patent Foramen Ovale is one
form of ASD. A PFO may be open (ie patent) at all times or it may be a
potential PFO (ie closed most of the time and opening under some
circumstances.)

Iain

"Iain Smith" <iainmsmith@btinternet.com> wrote:

>Purely pedantically:
>
>An Atrial Septal Defect is a generic term for a hole in the wall between the
>atria of the heart (the "atrial septum"). A Patent Foramen Ovale is one
>form of ASD. A PFO may be open (ie patent) at all times or it may be a
>potential PFO (ie closed most of the time and opening under some
>circumstances.)

Purely pedantically:

it isn't, as an ASD is a congenital deffect whereas everyone has a
FO... only with 30% this remains 'open'.

steven

+------------------------------------------------+
| Please use steevke at hotmail dot com to reply |
+------------------------------------------------+
| Hinc illae lacrimae |
+------------------------------------------------+

> >Purely pedantically:
> >
> > An Atrial Septal Defect is a generic term for a hole in the
> > wall between the atria of the heart (the "atrial septum").
> > A Patent Foramen Ovale is one form of ASD. A PFO may be
> > open (ie patent) at all times or it may be a potential PFO
> > (ie closed most of the time and opening under some
> > circumstances.)
>
> Purely pedantically:



> it isn't, as an ASD is a congenital deffect whereas everyone
> has a FO... only with 30% this remains 'open'.

And that patency is surely a congenital defect, resulting from the failure
of the septum primum and septum secundum to fuse in such a manner as to
prevent flow through the foramen ovale and ostium secundum?

(for anyone of a non medical bent who is still reading this:

Embryologically, there are two sheets of tissue which grow down from the top
of the heart to divide the atria. The first sheet, the septum primum ("first
wall"), is thin and grows down as a cresent, the space below it being the
ostium primum ("first hole"). As it grows, the ostium primum gradually
decreases in size. However, the centre of the upper part of the septum
primum becomes perforated, forming the ostium secundum, allowing continued
blood flow between the atria as the ostium primum closes off)

The septum secundum grows down to the right of the septum primum, the space
below it being the foramen ovale.

Blood flows from the right atrium through the foramen ovale (the hole at the
bottom of the septum secundum), up between the septae and through the ostium
secundum (the hole in the upper part of the septum primum) into the left
atrium.

At birth, the blood flow is rerouted via the lungs by various means,
resulting in a pressue drop in the right atrium and a pressure increase in
the left atrium. This causes the septum primum to be pressed tightly against
the septum secundum. This should result in the foramen ovale being
obstructed by the lower part of the septum primum, while the ostium secundum
should be obstructed by the upper part of the septum secundum. The two
septae should then fuse together during childhood, preventing any
right-to-left shunting. Failure of that fusion may allow the opening of the
foramen ovale/ostium secundum passage (or, if the tissue layers do not
overlap adequately, there may be a permanent defect in the wall.))

Of course, I'm going to be really embarassed if Steven now turns out to be a
paediatric cardiologist or similar!

Iain