00:00
Okay now we talked
about cirrhosis
so we know it's going to look like
I want to talk about something even
more interesting about
portal hypertension.
00:10
So it seems complicated at first
but it really isn't we're
going to walk you through it.
00:16
So first we're going to drop in
the liver the star of the show.
00:20
Got it?
All right good!
Now we're going to
bring in the stomach.
00:26
Okay, see how close they are, now,
we're stretching them out a little bit
because really inside your
abdomen there pretty tight,
but we're going to give you a
little extra space in between them
so you can see easily
what these organs are.
00:39
Next to the stomach,
or going to drop in the spleen.
00:43
I think it's one of the most
underrated organs in our body
and remember it's the largest
one in the lymphatic system.
00:50
Now, we're going to put
in our small intestines.
00:54
Cool!
Lastly,
I'm going to slide the pancreas
right underneath the stomach and
you'll see how it connects their
to the small intestine
and we're going to
tuck the gall bladder
right underneath the liver.
01:07
Now, here's where
it gets really cool.
01:10
So we're going to put the
inferior vena cava ehind the liver
and show you how it connects
to the heart of the liver.
01:19
Now this is a part
that's super cool.
01:21
Now we're going to take the
vessels from the intestines
and join them to
the portal vein.
01:27
We're going to take the
vessel from the spleen
and join it to the portal vein.
01:32
We're going to take the
veins from the stomach
and the esophagus and join
them to the portal vein.
01:38
Now, you see how all these structures
are bringing blood back to the liver
because remember the liver
has to blood supplies,
the artery,
which we don't have on there for you
because we're just focusing
on the portal veins,
but the artery delivers
blood about 25%
but that portal
vein system develops
to 75% of the blood supply
that goes up to the liver.
02:04
Now we've talked
about cirrhosis.
02:06
We have a really good visual in
your mind of what it looks like.
02:09
Remember that tissue
is kind of narrowly
and it's not easy to
blood to flow through it.
02:15
So put your finger,
right on the portal vein where
it enters the liver, got it?
Okay so hold your finger there.
02:23
I want you to trace the blood
supplies to the organs, right?
You've got to the spleen,
to the stomach, to the esophagus,
to the intestines.
02:33
There you go.
02:34
So you can see
where they all flow.
02:36
Now picture in your mind
pinching that vessel down
making it really difficult for
that blood to flow through there.
02:43
That's what it feels
like to your portal vein
because when that liver
is stiff and fibrotic,
it has a very difficult time trying to
deliver that much blood into the liver.
02:56
So everything backs up, right?
That's why your spleen gets big.
03:01
That's why you're,
look around those vessels that the veins
that are around your
esophagus and your stomach,
those become -
really engorged and in
large and very very fragile.
03:14
Puts our liver patients at
extreme risk for bleeding.
03:18
What it's the other reason that
puts them at risk for bleeding?
Right, like the livers involved
in making clotting factors.
03:23
So they don't clot well,
and now they've got these
vessels that are just overworked
to the point that they're
extremely fragile.
03:31
So that's the risk of
portal hypertension.
03:35
That's how cirrhosis
causes portal hypertension
and now we're going to
break it down a little more
but I wanted you to
have that framework
before we walk through
the rest of it.
03:45
So when we think about the
effects of portal hypertension?
Can you see why the patient
develops esophageal varices?
Right!
You see without portal vein is
if it's having a hard time getting
lift delivering blood to the liver,
you're going to end up
with blood backing up
and why you end up with those very
fragile vessels around your esophagus.
04:07
I remember at the very
beginning of my career
when I had a patient whose
esophageal varices burst,
and it was nothing we
could do to save them.
04:16
It is graphic and
burnt my memory.
04:20
Now we've got some other
symptoms are like hematemesis,
that means when those varices
start to leak into bleed
they're going to drain on through the
GI tract so they may throw up blood,
they may notice you have tarry
stools, they're pooping blood,
they're not going to feel like eating they're
just going to feel really really bad.
04:37
Now there's a term
called Melena,
and I want you to be familiar with
that because that's a medical term.
04:42
But that means a really
black tarry stool
and it has a horrific odor.
04:50
This is what you see in
patients who have a GI
gastrointestinal bleed this
what we're talking about.
04:56
If those vessels are bleeding
and draining into that GI system,
It's going to end up
exiting the body as stool
and when it's black and tarry
and unbelievably stinky.
05:09
I know and we had a
GI bleed on the unit,
I would step off the
elevator and say,
well I know what diagnosis
we have on the unit tonight,
and it's so embarrassing for
your they're awake and alert
because it's really hard
to get rid of that smell.
05:23
So work on having your professional face
when you're working with your patients
because it is embarrassing to
those who are awake and alert.
05:31
So when we say Melena,
that's a black tarry stool
that's got old blood in it,
it's got a really strong odor,
and it is hard to flush when
you dump that in the toilet
because it's just
really really sticky.
05:45
Now we've talked about what
happens with esophageal varices
and how blood ends
up in the GI tract,
now let's talk
about splenomegaly.
05:53
Right, that's when that
spleen gets really big.
05:56
Now why would the
spleen get big?
You are getting so good,
because the liver is cirrhotic
and we know that's back and
blood up all the way through
and it's definitely
connected to the spleen.
06:07
And so that's why you
end up with splenomegaly.
06:10
Now, why do we have ascites?
We'll talk about that more in detail,
but that's fluid volume shifting
in the abdominal cavity.
06:18
Now, there's a personal one,
rectal varices, right?
Those are like hemorrhoids.
06:25
Same concept, it's all because
of of portal hypertension,
so see how understanding normal
and how it all fits together,
understanding how a
healthy liver works,
understanding the damage
from a cirrhotic liver,
all the blood supply,
then it makes perfect sense
why you're going to see these
things in your patients.
06:44
So stop memorizing lists,
understand why your
patient knows he symptoms.
06:49
Stick with us!
We'll help you learn
it all we promise.