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Re: Serum sodium and MELD

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wrote:

>

> ..... MELD score and Na, at listing, were significant

> (both, P < .01) predictors of death within 6 months. After

> adjustment for MELD score and center, there was a linear increase in

> the risk of death as Na decreased between 135 and 120 mEq/L. A new

> score to incorporate Na into MELD was developed: " MELD-Na " = MELD +

> 1.59 (135 - Na) with maximum and minimum Na of 135 and 120 mEq/L,

> respectively.

, please tell me if I'm understanding this equation correctly (my

serum sodium is 126, and my current MELD is around 11 or 12):

Current MELD + 1.59(135-126) = new " MELD-NA " score

12 + 1.59(9) = new " MELD-NA " Score

12 + 14.31 = new " MELD-NA " Score

26.31 = my new " MELD-NA " score?

This would shoot my MELD from 12 to 26????

I've read your e-mail over about 20 times trying to grasp it and get the

details to stick in my mind and I think I've got it, but am I right????

TO THE REST OF THE GROUP -- Please, please post your serum sodium value.

Surely I'm not the lowest on in the whole bunch of us. This is a bit

unsettling, to say the least.

Regards,

Carolyn B. in SC

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wrote:

>

> ..... MELD score and Na, at listing, were significant

> (both, P < .01) predictors of death within 6 months. After

> adjustment for MELD score and center, there was a linear increase in

> the risk of death as Na decreased between 135 and 120 mEq/L. A new

> score to incorporate Na into MELD was developed: " MELD-Na " = MELD +

> 1.59 (135 - Na) with maximum and minimum Na of 135 and 120 mEq/L,

> respectively.

, please tell me if I'm understanding this equation correctly (my

serum sodium is 126, and my current MELD is around 11 or 12):

Current MELD + 1.59(135-126) = new " MELD-NA " score

12 + 1.59(9) = new " MELD-NA " Score

12 + 14.31 = new " MELD-NA " Score

26.31 = my new " MELD-NA " score?

This would shoot my MELD from 12 to 26????

I've read your e-mail over about 20 times trying to grasp it and get the

details to stick in my mind and I think I've got it, but am I right????

TO THE REST OF THE GROUP -- Please, please post your serum sodium value.

Surely I'm not the lowest on in the whole bunch of us. This is a bit

unsettling, to say the least.

Regards,

Carolyn B. in SC

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Guest guest

Dear Carolyn;

Your calculations look to be perfectly correct! It looks like it can

have a huge effect on the score.

Best regards,

Dave

(father of (20); PSC 07/03; UC 08/03)

> , please tell me if I'm understanding this equation correctly

(my > serum sodium is 126, and my current MELD is around 11 or 12):

> This would shoot my MELD from 12 to 26????

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Dear Carolyn;

Your calculations look to be perfectly correct! It looks like it can

have a huge effect on the score.

Best regards,

Dave

(father of (20); PSC 07/03; UC 08/03)

> , please tell me if I'm understanding this equation correctly

(my > serum sodium is 126, and my current MELD is around 11 or 12):

> This would shoot my MELD from 12 to 26????

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> > , please tell me if I'm understanding this equation

correctly

> (my > serum sodium is 126, and my current MELD is around 11 or 12):

> > This would shoot my MELD from 12 to 26????

>

I think one thing to keep in mind is that using this equation would

have a very large effect on score but at the same time most everyone

else currently waiting for transplant might see similar jumps in MELD

score, at least all those with Ascites. This will cause an overall

jump in average MELD score at transplantation. In todays MELD model

we may think a high meld for someone approaching transplant might be

a 20 for example but under the new model you might need something

like a 28 to be near the top of list (These are simply random numbers

I picked for this example).

So in Carolyn's case even though her MELD would go from a 12 to a 26,

many other patients currently listed ahead of her would see similar

jumps. And the top MELD score would probably not be a 40 like it is

now but more like a 60+.

in Seattle

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I think I missed what makes serum sodium drop? What causes ascites? If

serum sodium is a sign of kidney problems, then wouldn't this shift

MELD further toward prioritizing hepatorenal syndrome? Not that I

oppose it, but it seems like there have to be provisions for extra

points for those with recurrent infections, and the other

life-threatening things that MELD doesn't take into account at present.

Martha (MA)

> >

> > > , please tell me if I'm understanding this equation

> correctly

> > (my > serum sodium is 126, and my current MELD is around 11 or 12):

> > > This would shoot my MELD from 12 to 26????

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I think I missed what makes serum sodium drop? What causes ascites? If

serum sodium is a sign of kidney problems, then wouldn't this shift

MELD further toward prioritizing hepatorenal syndrome? Not that I

oppose it, but it seems like there have to be provisions for extra

points for those with recurrent infections, and the other

life-threatening things that MELD doesn't take into account at present.

Martha (MA)

> >

> > > , please tell me if I'm understanding this equation

> correctly

> > (my > serum sodium is 126, and my current MELD is around 11 or 12):

> > > This would shoot my MELD from 12 to 26????

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Guest guest

I think I missed what makes serum sodium drop? What causes ascites? If

serum sodium is a sign of kidney problems, then wouldn't this shift

MELD further toward prioritizing hepatorenal syndrome? Not that I

oppose it, but it seems like there have to be provisions for extra

points for those with recurrent infections, and the other

life-threatening things that MELD doesn't take into account at present.

Martha (MA)

> >

> > > , please tell me if I'm understanding this equation

> correctly

> > (my > serum sodium is 126, and my current MELD is around 11 or 12):

> > > This would shoot my MELD from 12 to 26????

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Guest guest

> (my serum sodium is 126, and my current MELD is around 11 or 12):

>

> Current MELD + 1.59(135-126) = 26.31 = my new " MELD-NA " score?

>

> This would shoot my MELD from 12 to 26????

>

> TO THE REST OF THE GROUP -- Please, please post your serum sodium

value.

> Regards,

> Carolyn B. in SC

The proposed change would add 23 points to current MELD scores for

those with sodium levels of 120 or less.

My MELD of 20 would not change since my sodium level is 138 (as of

April). It has been between 137 and 145 for the last 6 years, and

never a concern.

Tim R

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Martha wrote:

> I think I missed what makes serum sodium drop?

Martha, I was wondering the same thing. The first hint I had that it

must be serious was when my dr. took one look at the lab sheet and began

moving super-fast for additional lab work! Second was the item

posted about how it would affect the MELD. Until then, I hadn't

realized it might go along with the end stage of liver failure.

After searching for answers and finding lots of sites which my foggy HE

brain couldn't make sense of, I found this article which makes it a good

bit plainer:

http://www.healthandage.com/default.cfm?curr_navi=07 & curr_content=07 & spr=en & fram\

edef=1 & curr_paramlist=healthandage;79;7;haa_online_from;2;1;3;-;dsp_tooldetail

Also, I learned that serum sodium drops in many other serious chronic

illnesses. In heart failure, those patients with subnormal serum sodium

levels experience double the death rate of heart failure patients with

normal serum sodium levels. Obviously, pretty serious stuff here!

Regards,

Carolyn B. in SC

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