S3 vs S4 Heart Sound

The S3 and S4 heart sounds are both low pitch heart sounds heard in diastole. They differ when they are heard in diastole, S3 being heard early in diastole while S4 is heard later in diastole.
-----------------------------------------------
// AUSCULTATE SOUND LIBRARY
A Medical Sound Library - www.medzcool.c...
-----------------------------------------------
// RELATED VIDEOS
Pulmonic Stenosis: • Pulmonary Stenosis (ak...
Mitral Stenosis: • Mitral Stenosis Heart ...
S3 Heart Sounds: • S3 Heart Sound - MEDZCOOL
-----------------------------------------------
// FOLLOW US
Facebook: / medzcooleducation
Instagram: / medzcool
Twitter: / medzcool
Website: www.medzcool.com
-----------------------------------------------
// DISCLAIMER
This video is intended to be viewed by medical professionals and healthcare providers and used for educational purposes only and should not guide medical decision-making.
// DISCLOSURE
Some of the links above are affiliate links, and at no additional cost to you, Medzcool will earn a commission if you decide to make a purchase after clicking through the link. Please understand that our team members have used all these products, and recommend them because they are helpful and useful, not because of the small commissions we make if you decide to buy something through the affiliate links. Please do not spend any money on these products unless you feel you need them or that they will help you achieve your goals.

[@medzcool]

More heart sounds and murmurs: medzcool.com/auscultate

[@chloev2163]

s1 + s2 + S3 + S4 all together is kinda a jam

[@jebakumar9717]

Baby shark

[@raimaishrat5934]

Hahahahah

[@jadumonigogoi403]

God's drum beat .

[@Ram-yn3b]

Very severe aortic stenosis

[@nattakarnbhutcha9555]

lol

[@rawdonwaller]

This is the simplest and clearest vid I've come across. Obviously haven't seen every vid there is available, but this sets the standard IMO. Well done

[@Bang0518]

im a visual learner and the graphic paired with the sound helped me a lot in differentiating a seemingly the same sound. thank you so much.

[@ashwinkola71]

Thank you so much! The part in the end that highlights the corresponding heart sound was extremely helpful!

[@prateekmisra8251]

S3: - Thought to be caused by the oscillation of blood back and forth between the walls of the ventricles initiated by the inflow of blood from the atria. - May be normal in people under 40 years of age and some trained athletes but should disappear before middle age. Re-emergence of this sound late in life is abnormal and may indicate serious problems like heart failure. S4: - While the mechanism is not absolutely certain, it is generally accepted that S4 is caused by stiffening of the walls of the ventricles (usually the left), which produces abnormally turbulent flow as the atria contract to force blood into the ventricle. - S4 is sometimes audible in the elderly due to a more rigid ventricle. When loud, it is a sign of a pathological state, usually a failing left ventricle.

[@freemank8207]

Thanks

[@amritbhele8635]

Thank youuu

[@eric6345]

This is probably one of the best Videos on KZbin for listening to the S1,S2,S3,S4 sounds. It really helped me to see the graphic that went with the sounds. 1:06

[@nush727]

This is the most helpful video I've ever seen in my life. THANK YOU!

[@smilestormb.5260]

Awesome Mehn!!!. Never really appreciated these sounds. Now it’s makes so much sense. Esp the S3 and S4 distinction

[@Crescent-Adam]

Absolutely brilliant!

[@doctorshocker619]

you're a life saver, lucky to have found this channel !!!

[@okobacollins1001]

You guys just solved my problems in a beat. How can I like this multiple times❣

[@Adredhead11]

This was so very helpful. Thank you! -4th year med student on rotations

[@neelneelushah0]

You don't have have to mention which fucking year you are.

[@SnowFlyGG]

In rotations and still not recognize pathological sounds in a heart? The pandemic ruined the students.

[@flaminmongrel6955]

@@SnowFlyGG was thinking the same I'm a physiotherapist student in first year and already knew it from my physiology class but came here for a better understanding.

[@davicaldasdossantos9484]

This playlist is very good! Thanks for making it available on youtube.

[@zahraa9052]

Why are they all the same to me ?

[@theassassin2072]

😅

[@kh1diiiiiiij1]

Yeahhh🥺🥺😭

[@kaitlynhill597]

great video! really helpful when the parts lit up at the end

[@jessedahringer5764]

Such a great video with the visuals, thank you so much!

[@melylacheb]

This channel is underrated 🥺✨

[@ayahrefaat8037]

this video was everything. THANK YOU

[@HaVoCX64]

I used to box back in 2010-2011, since then i havent really been able to train my body, i am a dead beat doctor in his 30s. I swear i thought this was a troll video, where you wanted to sleep on the pillow and just say “do it you lazy slob”, but it turned out to be the best 2 minutes i watched in ages. Huge thanks for the advice!

[@nightbl00ms]

the visual aid for the sounds made me understand this so much better lol

[@chrismistretta4801]

Absolutely fantastic video on this thank you so much

[@dr_boho]

Cant ever thank you enough for this

[@Aisha-XDDD]

Highly helpful..Thanks❤

[@wasanakodithuwakku5648]

Thank you so much! These videos are amazingly made!

[@geneveweil2938]

AMAZINGLY DONE!!!!!!! and such high quality

[@ekram-eq9xh]

S3 feels like your in disco … s4 is abit more serious

[@Queenw-t8z]

Hahahaha!

[@fatm4403]

😂😂😂😂

[@SemiruAbdu-mt8fi]

O my allah😯 what a beautiful description is it. Realy i appretiate keep it up!!

[@caelum8900]

thank u sooo much i was wondering how s3 and s4 sound like

[@xiaoyueliu8328]

Great content! However, the volume of heart sound is very low, so I turned up the volume, then the bell sound at the start of your video almost made me deaf because its so loud and sharp. Consider make the volume of your video evenly through out.

[@austinsolak]

MS1 here, thanks for this awesome video!

[@TheKimbozlice]

This is the coolest thing I have ever seen and heard! And soo helpful!! Thanks so much!! Edit: "and heard"

[@julianne.fairbanks]

this is very informational. thankssss

[@BRAVE_AGAINST_MYSELF]

Omg, god this is awesome ❤❤❤❤ God bless you guys.

[@ahmedghandorah9355]

Very helpful thank you

[@victorspitz9765]

amazing. thank you for this

[@olaebrhem5641]

Wow this is the best explanation thank you a lot.

[@trizhie]

oh. this is now my favorite video ever. wow!

[@saintsam7397]

ID 2108 on uworld doesnt sound like this to me, trying to memorize how they sound but I dont think im getting anywhere. after watching your videos I feel like a pro and then I try to do this question n im like whhhaaattttt?

[@ahmedahmad3441]

Absolutely amazing!

[@theresejoannaramirez3406]

The best! Thank you.

[@elviraturturici2982]

Extra clear now, thanks 😍

[@didiiyoho2086]

Thank you!!!

[@bluestone6648]

You nailed it fantastically

[@infj.creature]

GOLD Thank you

[@meri7239]

This is the only video i could understand perfectly

[@WasabiSniffer]

good freaking god this is amazing

[@omarhassan2751]

how to differentiate that from splitting of S2?

[@Saaraelamin]

thank you very clear

[@nakulsayta1155]

Fan of this channel 🖐️

[@rodneyadeka]

Really helpful thanks

[@tosinmomodu3620]

Thank you so much..

[@hhhhhhhghghghghg]

that last part was so helpful!

[@armitahoseini2894]

TY sooooo much 🥹♥️

[@aashir786ss]

Sounds kinda catchy tbh

[@berry.x9388]

Very helpful video! thanks!

[@parveendoddamani4652]

Superb, thanks a million

[@alissaz4333]

Thank you so much!!!!

[@javadmohammadpour4435]

Fantastic ! Thanks a lot

[@Erocha88]

It goes so hard to find s3 for me when i auscultate 😬😬i dont know why

[@KelvinOssai]

Found this helpful

[@m.bprajapati8921]

How to differentiate wide split S2 and S3?

[@i7Cee]

Love it, thank you

[@dsp7846]

This is so helpful!

[@mirjamw6665]

kentucky is S3 LeLub Dub is S4, Listen at the apex of the heart, with bell (cause it is a low frequency)

[@drsfitnesshub6155]

great video for learning to differentiate these confusing sounds

[@himanshu_s_acoustic]

Thanks 😌

[@shakeelqazi9160]

Excellent!

[@linabelhout3219]

i cant heart the difference between normal heart sound and s4 heart sound..... 😢

[@edieli4229]

Great, thanks

[@keihan4279]

Perfect Thanks a lot

[@gamingwithdm6376]

Awesome 👍🏻

[@breveennkukan3603]

Excellent

[@ronstewart5945]

It makes sense now, by golly.

[@nekonina9633]

wonderful .. thanks

[@zarrnasy6184]

0:12 S3 0:17 S4

[@vikuvimal]

This is pure gold

[@mohamedaziz8314]

Great post

[@dr.mohammedalqasim9656]

that was awesome

[@gustavopelison3404]

Amazing

[@nurmuhammadmimnur364]

Brilliant!

[@YAYGamingYourOwnSenpai]

Very helpful

[@LoversGrief]

So S4 splits S1? Is that it?

[@neelneelushah0]

Perfect.

[@mohammedqais7500]

Fantastic 👍

[@shantanuchaurasia5232]

Amazing 👏🙀

[@Dr.Hadi.Jabbari.MD89]

Perfect

[@masamtawej1934]

Thx, ❤️

[@mantree8047]

I heard it today in a patient of MI.

[@DrAhmed-or9rf]

Fantastic

[@LordPinkiePie]

Am i the only one thinks its a good beat for making music ?

[@medzcool]

Nope, I think it’s perfect for making music! 😄

[@ummaykulsumtania849]

Captivating

[@Pathologyformedicalstudents]

Awesome

[@theevilwithintheory.medica1494]

I didn't knew the heart can play drums

[@fatimaabass3900]

together made a lit beat

[@aadarshavanesh]

Lovely

[@amritbhele8635]

This video made it ao easy

[@huwawwew]

I love you!

[@Annnonymous]

Scary theme like the beginning of horror movies 😁❤️

[@lylakassar7284]

Great