00:00
Now we're ready for
the second F word
in talking about cirrhosis.
00:04
Filter.
00:06
A liver that suffered
from cirrhosis
doesn't filter as
efficiently as a liver
that's normal and healthy.
00:12
So we talked about filtering
mean the breaking down of things.
00:16
For example as blood
passes through the liver,
it should filter
out medications and
things like alcohol and caffeine
and toxins made by our body.
00:26
When you can't filter
well, you end up jaundice
and even have things like
hepatic encelopathy.
00:31
So don't worry, we're going
to break those down in detail,
but I just want you
to keep the framework,
the first F word when it
comes to cirrhosis is Flow.
00:40
The second F word is Filter.
00:44
Now, I want to talk about
hepatic encephalopathy
because I think medical
terminology is so important.
00:50
Encephalopathy were
talking about your brain
hepatic means the
liver has caused it.
00:57
So this is a problem with your
brain, encephalo,
to the central nervous
system, pathy meaning disease,
and hepatic caused by the liver.
01:07
So the cause of hepatic encephalopathy
is elevated ammonia levels.
01:13
That means that the liver
is unable to metabolize,
ammonia and turn it into urea
that the excreted from the body.
01:21
So you end up with high
ammonia levels in the blood.
01:26
The problem with high
ammonia levels in the blood
is that ammonia is neuro toxics.
01:32
So ammonia is a toxin that's
normally cleared from the liver.
01:36
Take a look at your
brain right there.
01:38
The reason we have that there
is because we want to focus you
on the impact of the
liver on your brain.
01:45
If the liver is unable to
filter, that second F word,
that ammonia by turning it into
urea to get it out of your body.
01:54
You're going to end up with
some serious neuro changes.
01:57
Now it can be a pretty
wide rate of changes
and decline in brain function.
02:02
So I want to give you
kind of a list there
and we've put it up there
for you on your screen.
02:07
It can range from the person
just not acting themselves,
we call those
personality changes,
to not being able to think clearly,
that's intellectual impairment.
02:17
Now, they can't remember things.
I can't pull up words.
02:20
They can't remember where they put
something or where they need to be.
02:25
Those are kind of
the beginning signs,
but it can progress
up to seizures,
loss of consciousness,
coma and death.
02:34
So when the liver can't filter out
the ammonia by turning it into urea
you can end up with incredible
risk of neurotoxicity.
02:43
Now, let's look at a really
unusual sign of asterixis.
02:46
Now I want first of all,
let's talk about what it is
when a patient's hand is extended
and the hands kind of tremor.
02:52
It's also called a
flapping trimmer.
02:54
Now, there's other things
that can cause this sign
but it always leads to
toxicity, okay?
This one in relation to
those high levels of ammonia
is caused by an
abnormal function
and the diencephalic
motor center of the brain.
03:09
That's not as important
as you remember
when the patient has
elevated ammonia.
03:14
We know they can have
those slight neurochanges
to severe coma and death,
but this would be a very
noticeable sign for a patient
we know has liver damage.
03:25
Remember you have to look at
the whole picture of the patient
because there's lots
of other toxicities
that can cause this very unusual
response this flapping tremor,
but in this case if we know the
patient's liver is not functioning well,
this would be another way
to support the liver damage.
03:45
So we see this
with liver disease
and it's usually considered to be
caused by the inability of the liver
to metabolize ammonia to urea.
03:54
So hey, here's what I recommend.
03:56
This might seem weird to you,
but try that with yourself.
04:00
Teach your brain,
repeat that word asterixis
and so you've got
that in your mind
you remember what that is.
04:08
Now again,
we're still in filter.
04:10
We're talking about jaundice.
04:12
Now bilirubin is a yellow
pigment that's formed
when old red blood
cells are breaking down.
04:17
If the liver can't metabolize
bilirubin efficiently,
they'll be an
excess of bilirubin
and that gives the eyes and
the skin a yellowish tint.
04:26
Now, I know you've kind of
been looking at that picture.
04:29
Look on the right side
is kind of a pink color,
but look on the left side more
of a yellowish orange hue.
04:36
Now we can range
in patients from
really really yellow to almost looking
like a pumpkin in the fall festival
and look at the eyes,
even if the patient has
a beautiful skin tone.
04:47
So you can't notice
the jaundice as much.
04:50
If you look in their eye,
you will see yellow
no matter what
color their skin is.
04:56
So be on the lookout
for jaundice.
04:58
Know that it's a
sign that the liver
cannot break down those
old red blood cells
and that's why we have that
excess level of bilirubin.
05:07
We also us in our
newborn babies,
that's because their
livers are immature
and they have
hyperbilirubinemia,
but in adults it's a sign
of liver that is
damaged by cirrhosis.