So, let's switch gears now to Ehlers-Danlos syndrome.
Ehlers-Danlos syndrome is also a connective tissue disorder
and it's characterized by hyperextensibility,
connective tissue fragility, and a delay in wound healing.
These patients also have a collagen mutation
and the type of Ehlers-Danlos they have, there are many types,
varies differently depending on the location
or the nature of the mutation in their collagen gene.
So, about 50% of patients with Ehlers-Danlos have a parent who is affected.
There's about a 50% inheritance risk,
but many people are unaware that they have the diagnosis,
especially patients with benign hypermobile type.
That's the type where they're very flexible,
perhaps they can do an interesting party trick
like dislocate their shoulder or step through their hands
and bring them around the top again,
but the reality is, they have the disease.
So, characteristic of this disease is that they have hypermobile joints.
They should be able to bend their thumb all the way back to their wrist,
or they can hyperextend the finger like you can see here.
These patients have an increased risk of dislocations
and subluxations of their joints.
In many cases, they have stretchy, fragile skin,
as you can see this person with their elbow.
They have increased skin, increased tissue, and increased vascular fragility.
So, how do we diagnose Ehlers-Danlos syndrome?
Well, it's based entirely on clinical exam.
There really is no available genetic test. It's too complicated to test for.
So, we use the Beighton score. A Beighton score of more than 5
argues this patient may have Ehlers-Danlos,
and the higher the score, the more likely.
We also get a baseline echo to rule out any aortic dilatation.
So, what is the Beighton score?
Well, you get 1 point if while standing forward and bending down,
you can place both palms on the ground with your legs straight.
They're very flexible.
You get 1 point for each elbow that bends backwards while extending.
You get 1 point for each knee that bends backwards
while extending it as far as you can.
You get 1 point for each thumb
that touches the forearm when bent backwards
and you get 1 point for each little finger that bends backward beyond 90 degrees.
So, when you add them up, you get a maximum of 9 points.
The more points, the more likely you are to have the disease.
So, how do we treat these patients?
Well, generally we encourage low-resistance and small weight-bearing exercise.
So, low amounts of weights with frequent reps.
We recommend calcium and vitamin D supplementation
to maximize their bone density.
We encourage them to avoid high-impact and contact sports
as they're more likely to have dislocations and traumatic experiences.
One of the key things we recommend which is sometimes hard for people to do,
especially the benign hypermobile types, is avoid demonstrating party tricks.
It may be cool that you can bend your thumb backward
or that you can walk through your hands
or that you can do these cool tricks, don't do it.
Because what happens over time is the more party tricks you do,
the more likely you are to build up an irritation in that joint
and result in a long-term osteoarthritis.
So, these patients can get osteoarthritis in affected joints
down the road when they're adults.
So we encourage them to not do their party tricks.
Sometimes we will do other things as well.
Occasionally, patients with Ehlers-Danlos,
depending on the type, have different risks.
One thing we will sometimes do is we will do clotting studies
and a platelet function assay on these patients.
The reason is, is not that we suspect they have platelet function disorders,
but rather that we don't make the diagnosis clearly
because it's such an unclear diagnosis to make
and these patients do bruise frequently
and sometimes we might think that they have an underlying bleeding disorder
or something else going on that might be the reason why they have bruising.
So, you often see people do this
before they've established the diagnosis of Ehlers-Danlos
to rule out a bleeding disorder.
Because they bruise easily,
we do recommend they avoid aspirin and we give them pain management.
Sometimes patients with benign hypermobile type
have a lot of pain in their lives
and we have to encourage them through that
and sometimes encourage help from a palliative care physician.
We do refer these patients to support groups
for other people who have Ehlers-Danlos.
The other thing is, suturing up deep cuts may be problematic
and cause further bleeding and the sutures can break through the tissue.
So, we generally will prefer to glue their lesions
than we are to suture them up.
So, that's my review of both Marfan syndrome and Ehlers-Danlos syndrome.
Thanks for your time.