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The Marriage Between Technology & Medicine | Patrick Griffith, MD | TEDxYorkSchool


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my area of expertise is in the medical

what that really means and translated

into you’ve seen people with a heart

attack coronary disease into the oil

damage of the inside of the vessel wall

which blocks the vessel causes poor

blood flow to the heart and therefore

damage and the heart dies itself in

certain areas in addition a aortic

stenosis is another type of disease it’s

a calcium buildup on the vessel the

valves are just like doors they open and

they close so there’s two malfunctions

they could have they can not open enough

or they open too much and we’ll just

look at something called a or text

enosis why is coronary disease so

important mainly it affects over ten

percent of the population in the entire

United States it’s the leading cause of

death every 42 seconds someone has a

heart attack every minute someone dies

from heart disease the annual cost of

all of this is over 200 billion dollars

a year so I want to just go on a journey

talking about the past the present and

the future Stephen Padgett was a

well-regarded surgeon in the late 1800s

he founded Paget’s disease of the bone

he was thought to be the founder of

pathology along with Bercow but he made

the statement early on surgery of the

heart has probably reached the limit set

by nature to all surgery no new method

and no new discovery can overcome the

natural difficulties that attend a wound

of the heart

so what he was saying is that anytime

there’s damage to the heart or we need

to operate I feel it’s impossible well

let’s make an analogy it is like a

mechanic working on an engine except now

the engine is actually running there we

go so really the underlying theme of

this discussion is more about how do we

deal with the impossibilities we have

thousands of thoughts on a daily basis

it’s all really about the growth the

seed of growth for all of our desires

the desires to achieve the extraordinary

from this as long as we believe that we

can do it it certainly will happen the

it took over 60 years but in the 1950s

Lily hi at the University of Minnesota

figured out that well if we open up the

heart we’re going to lose a lot of blood

and where is that blog on a Duke go he

thought well I could connect it to

tubing and have it go to another

recipient the recipient in this case was

the patient father the son had a

ventricular septal defect which is a

hole right in the ventricle the hole in

the heart and the blood released came to

the patient’s father and then back to

the patient it was their first

successful operation of the heart and

the 1950s this actually led to the

development of by John Gibbons of the

heart-lung machine so this was a major

technological revolution because but now

is that over millions of operations are

now performed throughout the world so

what about the present what are we doing

now well this is the way we do the

operation currently we actually open up

the middle of the chest I see people

closing their eyes

let me tell you it’s only going to get

worse than you might want to cover your

ears and so what we see here is that

when the chest is open we’ve exposed the

pericardium which is the SAC around the

heart and here’s the heart and it’s

allowed us to do operations such as on

the blood vessels to make sure blood

flow on the valves to make sure if

they’re infected if they leak if they’re

stenotic that replaced them the aorta

which is the blood vessel of the body

that allows the blood to circulate

throughout the body to repair that if

it’s torn or enlarged eruption there’s

new technology coming along now called

tavor trans a ortak valve replacement so

what you see here is that the catheter

is passed up through the femoral artery

through the aorta and up to where the

aortic valve resides of this catheter is

the valve itself and is crimped on the

catheter it is then expanded and then

deployed such that we don’t even have to

open the chest to do this operation I

think this is going to be a technique

within the next several years that is

probably going to take over open-heart

surgery this is called robotic surgery

what we see here multiple arms are about

five or six arms that are inserted into

the chest cavity to expose the heart and

the surgeon isn’t even at the table the

surgeon is over here at a console what I

find what I’ve tried to use this is as

probably if you learn how to play video

games so if any of you are doing that

but there are certain barriers to

minimally invasive cardiac surgery one

of those is finding the optimal

procedure technique unfortunately we’re

talking about doing this on live people

to start and it takes many years

sometimes to do that there’s a steep

learning curve sometimes you have to

operate on fifty to a hundred people to

really get it right capital requirements

that robot that we showed you is over a

million and a half to two million

dollars and there’s an annual cost of

about a quarter of a million dollars a

year and the reimbursement constraints

whenever something new coming out just

like there’s another procedure that I do

called Broca’s navigational bronchoscopy

the different third-party payers that

are in medicine now they like were

minimal and will not pay for it what

this really results and just what i

wanted to show is that in nineteen sixty

the gross domestic product it was only

five percent of the overall cost and now

we fast forward to 2010 dollars and the

expected growth is that by 2050 it will

be over sixty percent of the gross

domestic product so in the past it was

very affordable although and in the

present we don’t know if it’s going to

be sustainable so for those of you who i

saw cover your eyes you might want to do

that again do i need to push it you want

to cut it down a little cut it down so

so what we see here is opening the

sternum the breastbone there to expose

the heart this was one i just did a

couple days ago we’ve done several

here’s the pericardium the SAC around

the heart and these are the lungs that

you see expanding back and forth as the

patient is on the ventilator

what i’m doing here is opening the SAC

around the heart to actually expose the

heart you see the right ventricle on top

the left ventricle is sitting below here

is the pulmonary artery where you see

the suction catheter and here’s exposure

of the aorta and the right atrium this

is the tubing that’s going to be

connected to the heart-lung machine so

this is the right atrium that is

connected to so we take the blood from

the heart so that we can quiet the heart

and work in a bloodless field this is

going into the aorta we’re returning

oxygenated blood free of any debris back

to the rest of the body for the brain we

are all connected now you see the heart

beating and now we’ve clamped the aorta

we stop the heart and at this point and

this is the picture of the heart-lung

machine as you saw which came about in

the late 1950s I’m opening up the aorta

at this time to expose the valve here is

a bicuspid valve normally there should

be three leaflets there’s only two this

is a congenital abnormality and this is

why this person has such problems they

were only in their 50s very short of

breath a lot of chest pain this is the

bicuspid valve this is the new valve

that is made from pure cardium of a cow

and this is what is being implanted we

see it in planted here within the aorta

and now I’m closing up the aorta if I

try to tow any of this minimally

now all the tubing is out the heart is

back to beating we close the sternum

and this patient was done on monday and

should be going home tomorrow so so what

does the future look like of course i

could start talking about a number of

different items but there’s something

that is interested to me now that

actually i’m starting to get involved

with and that’s called pris / just by a

show of hands how many people have heard

of crisper oh very knowledgeable

audience what does it stand for now so

crisper is clustered regularly

interspaced short palindromic repeat so

palindromic meaning of course backwards

or forwards the same and what that is is

that bacteria for billions of years have

what happens is this is the bacteria

whenever a virus or other microorganism

invades the cell the DNA of the bacteria

is able to actually recognize this and

incorporate it between the spacer once

it does that through transcription the

crisper RNA the messenger and RNA is

produced and once that’s produced any

time there’s any other invasion of a

microorganism or virus it recognizes

that gene and incorporates itself in the

exact location what is able to do so you

then destroy that gene so that it’s no

longer functional so i can either

silence it so that it is non-functional

or it can edit to actually have a

totally new function that as at the

direction of the lab this is currently

being done today so what are the

benefits of crisper i bring this up

mainly from the standpoint

I think we could see eradication

eradication of heart disease and cancer

they’re already working on it for cures

of infectious diseases such as aids in

addition for genetic diseases from

Alzheimer’s marfans a number of things

the one that I’m actually involved with

is which Fuchs disease so again the boy

who had the ventricular septal defect

maybe could be treated with crisper

coronary artery disease actually could

be eradicated the main issues with

disease such as that is one of the risk

factors hypertension hyperlipidemia

diabetes that’s a reversible process

through genetic engineering also that of

lung cancer I lobectomy for lung cancer

in the future we’ll see if that’s still

the case now there’s top could you

actually be taller more muscular could

it be that you change your eye color or

as we look at this we would say we’re

looking at this picture from right to

left but now it might be that you’re

looking at it from left to right because

now people are talking about working on

aging so my overall thought as far as

this process is is that the way we think

develops into our belief system and our

desires and from that we form our habits

and our habits shape our future thank

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you [Applause]

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