Atrial septal defect | Circulatory System and Disease | NCLEX-RN | Khan Academy 

I had atrial septal defect as a baby and they told my mom they would operate on me when i was 3. They said the hole was pretty big for a baby's heart but thankfully it closed and the doctor said it was a miracle. I am now 14 and have decided to be a pediatric cardiologist. Thanks to all the doctors out there😃

"and you know, they go to take a poop, and when they take a poop of course there is a lot of pressure...." Thanks for keeping things interesting.

Hi i am 55 years old and I did make this operation 5 years ago and i feeling good So my question it's if is dangerous to take viagra Thanks

Super video.. I admire ur work

This is so good! U explain it so good it that this video should be in medical classes for sure!

proof that taking a poop can kill you.

Ostium secundum defect is created because of excessive muscular resorption or excessive programmed cell death (apoptosis) of the septum primum essentially leaving a bigger hole ( ostium secundum) that overlaps the septum secundum. Systemic vascular resistance is higher during birth which in normal circumstances the left atrial pressure increases and pushes septum primum and septum secundum together for an anatomical closure that eventually will lead to fusion of septum into one atrial septum. But because righ side of heart has lower pressure the blood leaks back from the left atrium to right atrium converting it from a physiological normal right to left shunt through the valves to left to right shunt through a hole. This eventually leads to a increase in blood volume as less blood is getting out of the heart, therefore it increases preload and end diastolic volume. This leads to an increase in presure and contraction force for the left ventricle to push blood out of heart. This can go into two directions the left ventricle hypertrofies to push out more blood or it dilates to the point of no return ( left heart failure). If left heart failure occurs the pulmonary trunk will begin to do excessive work till the point where pulmonary hypertension develops because of excessive blood volume and right heart hypetrophy or dilation begins to occur because pulmonary vascular resistance is higher than systemic vascular resistance leading in the end to a righ to left shunt later in life ( Eisenmenger syndrome).

I'm just coming across this studying for an exam in advanced pathophysiology as part of my studies to become a Family Nurse Practitioner. Your wonderful illustration and explanation helped me understand that the "split" sound is coming from the aortic valve closing before the pulmonic valve ( due to excess volume of blood). Thank you for this!

My asd wasn't found until in my 40's. After closure I developed paroxysmal atrial fibrillation. Now 4 years later, I was just diagnosed with congestive heart failure..I have left ventricle stiffness. I had echos done throughout the years and no doctor caught it..

Kudos on mentioning paradoxical embolism but it should also be noted that a significant ASD will cause right heart dilation from the volume overload, pulmonary hypertension, and eventually right heart failure.

You are one the greatest instructors I am able to fully understand completely. Thank you for the vids, and hope to see more!

I am 24 and I got diagnosed with ASD recently after 2d Echo, I have never had any symptoms as such , sometimes a breathlessness only if I perform any strenuous activity like fast running, trekking, etc. Dr. Said the whole is big comparatively and abnormal heart rates are observed now will be undergoing a surgery soon. What is the success rate and can i lead a normal, healthy life afterwards??

Good for general population, but not complete enough for medical students. It's missing the explanation of how pulmonary hypertension occurs and how the left-> right blood flow changes to right->left after some time, which in turn opens the possibility for a paradoxical thromboembolism. You also need to include the embryology part and explain how the atrial septum is formed in the first place and how the foramen ovale is supposed to look and function, and how it functions in ASD, differences in pressures between right and left atrium, how they change as the defects progress, etc. That is all important to really understand what's going on.

These videos never cease to amaze me. I speak for many when I say that I am grateful and forever mind blown at the ease and exemplary way in which you guys break these difficult "textbook" concepts down. THANK YOU times a million!!!

Wish you were living near by hahah so that i could ask you and understand everything about medicine as it should be💔 Thanks alot sir.

Thank you for this! So easy to understand! 😁 Just one thing it was really hard to follow your cursor as well as read/see the words and drawings. Could you please make the font thicker next time? Otherwise very helpful video! Thank you! 😁

Thanks for this!! I had a stroke 6 years ago and now I finally know how it happened. My mom drank when I was in utero, had a hole that went undetected until my stroke

I was looking for the Dr. Najeeb lecture on CHD's (which is exceptionally good) and I couldn't find it so I watched this. I think you first need to cover the development aspect, at least the interatrial septum. You don't explain what the septum primum and secundum are but tell that if the defect is in middle it's a secundum defect! That's atrocious!

You explained it really well thanks for making it easy. Just a small correction it is actually Down Syndrome, not Down's.

This thing is really easy to understand!!!! : D

I was born with this❤️❤️ anyone else?

ASD might be asymptomatic but to therefore say it's not a big deal is just ridiculous. plus surely there are symptoms but most with it are found as babies so the info on symptomatic adult patients is just not there

Can you be my professor?!

i love this guy

This videos are great! Thank you very much

his voice is so cute. I feel like a dude now. thank you very much

omg the heart sound explanation nailed it .. thanks a loooooooooooooooooooooooooot

such a nice video.. love those drawings and the narrations are filled with enthusiasm!

I was born with 5 holes some in the rv and av

It can also lead to infective endocarditis due 4o organisms forming colonies on the abnormal shunt

Oversimplified

I'm 19 years I'm getting little heart pain like something from 14 years 8 it gradually increased took ecg 4 different hospitals all told that didn't get clear graph but yesterday when I consulted doctor he detailEd took 2d echo he was not sure but maybe chance having hole in heart it is not visible in 2d echo he advised to take tee to R/O ASD (hence it is not clearly visible in 2d echo . how may chance of hole size??)

U made it so interesting to understand sir... Great work🙏

Had a Toe for PFO closure and told my atrial septum has a very aneurysmal appearance. An ultrasound of my heart report my atrial septum is thin, mobile and aneurysmal. Guessing in layman’s terms this means I have atrial septum defect lol. If anyone can confirm that, much appreciated. Thanks. Previously had a cryptogenic stroke 9 months ago at age 36 with a PFO that’s just been closed.

Thnku so much..I have exam tomorrow..Nd I never understood it. Bt today after watching video...I got my concepts clear...U r so good...😘😘😘thnkuuu

Amazingly simplified, thank you so much!

if sister’s(healthy sister) brother has ASD then what are chances of sister’s child having ASD( through genetically)??

I'm sorry but this is oversimplified and can be misleading. You should explain more about type of asd

Beautiful explanation.. my nephew has 7-8 holes in his heart. He is jus 21days old.. doctors adviced for an open heart surgery.. we are really worried alot.. will he be ok?? If anyone had this type of situation pls rly

Thanks for explaining this. I had a stroke at age 55 after veins being operated on in my leg. It was discovered I had ASD and it was surgically repaired.

I have a quick question my daughter is 3 yo and has a ASD with right sided hypertrophy. What level of risk is there for damage to the pulmonary system from the larger volume of blood being introduced to the system and increased pressure over time.

thank you for the explanation i understood now the problem that my child have. its ASD type ostium primun. but i dont know if is obligatory to correct this with sternotomy??????????

why is it the second sound get split i mean why does the pulmonary valve get close late? is it because the high pressure became in the right side of the heart??? thanks for the amazing video n ur nice explaining

I had 3 wholes in my heart and got keyhole surgery when I wasn't 7 at Great Ormand Street Hopstial!!

Amazing explanation...easy to understand,,,,thanks to the speaker

I really love your videos...but you could have skipped the initial 1:40 minutes.

This is what happened to me. I had a vein removed from my right leg, three days later I had a stroke. I don’t think the poop thing caused it, but it was devastating.

He sounds Jamaican. Or Trini

This is the best video for layman to understand brilliant thank you 👍

You talked about a hole being there could the whole wall being missed ?

Amazing lesson and visual. Thanks so much for this!

Wow really very very informative thanks is not enough to thank you !!

Did anyone else at 6.33 think he was going to draw a sphincter?

Isn't that the same Jamaican guy in interactive biology??

n!cE viDe0..................

Nice video...excellant

Please make a video on Atrioventricular Canal Defect :)

Thank you! 🔥🙏

Awesome!!!!!! thx

This video is very Informative!! I have two Q's: After doing ASD closure medical procedure, would ASD reoccur sometime in the future? can the person lead a normal life?

Love the accent

This is great. You explain very well. Your examples help me to remember. Thank you.

Finally I have understood this split thing

Awesome explanation. Clear and concise for general audiences. Kudos to the presenter.

thanks to information, good it is vedeo, i like it,

will ASD increases the size over the time?

Thank you now I know how the Lup Didup happens

Great explanation for NP pediatric cardiology class!!!

Great tool explained clearly.... thank you

This educator was fantastic and its evident he loves what he does. Thank you

Amazingly simplified...... Great

You mean ASD and PFO is the same?

this is so long and naggy 1 min im out. pls stop

Very well done and super simple. Thanks ! Keep it up!

Thankyou for the explanation of ASD !

Loooooooooool. Thanks so much

Very nice video...well explained.

Not so informative. So Simple.

very good explanation video.

Amazing video. Thank you!!!

I have 2 holes what's that mean

Perfect...excellent....great👌👌👌👌👌👏

Thnx it was so helpful

I have this an going to have surgery Wednesday. I am so scared. I have had a stroke and a heart attack. I have had chest discomfort for years . I was 23 when they found this. Now I am 37 with 2 kids.

Amazing thank you

great videos more videos please

fascinating and excellent explanation! ty

I love this guy!

Brilliant thank you

Thank you! great explanation!

So many defects

I have Vsd not asd

Well explained by the way

Good explanation

I have this heart btw

Haha he said poop

Very useful

Good lecture

Thanx alot

I love you.