Blood Pressure Dynamics (cardiac output, stroke volume, HR & vascular resistance) Made easy!

A simple model for Blood pressure dynamics, going through the basics of cardiac output, stroke volume, and heart rate.
00:00 Intro: One very simple equation!
00:24 Cardiac Output
00:54 Stroke Volume and Cardiac Output
01:22 Preload
01:43 Contractility
02:05 Heart rate and Cardiac Output
02:49 Vascular Resistance and Blood Pressure
04:13 Example: fight or flight response and blood pressure
04:42 Example: How sepsis affects blood pressure
05:20 Outro
-View the Key Concepts in Cardiac playlist
• Key concepts in Cardiac
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#Intensivecare #madesimple #Heamodynamics

[@jlcooper841]

Absolutely spectacular explanation. You take a complex equation and make it imminently understandable. Thank you!

[@thehumanbodyoversimplified5381]

your very welcome, glad it was helpful :)

[@katherinepowell-royal9229]

the is no doubt one of the best explanation I've come across. PLEASE MAKE MORE VIDEO'S!!!!!!!!!

[@thehumanbodyoversimplified5381]

Many thanks, glad you liked it! Hopefully I'll find some time to make some more videos soon

[@snehadavid7533]

Thank you so much. You have given us a way to
'feel' the way that the CVS is regulated!

[@thehumanbodyoversimplified5381]

Thanks Sneha, 'feel' is a nice was of describing it, glad it was useful!

[@scoovadia9452]

Your videos make complex concepts so much simpler. Thank you !

[@thehumanbodyoversimplified5381]

You're very welcome!

[@rianna8368]

I felt so stupid not being able to understand such a simple concept, thank you so much for the clear and quick explination!

[@thehumanbodyoversimplified5381]

Glad it was helpful! Many thanks :)

[@SHANTVCI]

Best ever video explaining Blood Pressure Dynamics 👍

[@thehumanbodyoversimplified5381]

Many thanks :)

[@emmawicker2926]

Really helpful, clear, and easy to understand. Thank you.

[@thehumanbodyoversimplified5381]

Thanks Emma, glad it was useful :)

[@arismaruto8291]

This found very useful for me as a junior cardiology resident to simplified the complex of CVS. Thanks! Looking forward to spread all of your videos

[@thehumanbodyoversimplified5381]

Glad it was helpful! Hope you enjoy your time on Cardiology.

[@orewatalitonu358]

Great explanation. This video has really helped me grasp the concept of cardiac output and stroke volume.

[@thehumanbodyoversimplified5381]

Glad it helped!

[@jessicamxx]

Thank you! This was really helpful!

[@thehumanbodyoversimplified5381]

Thanks Jessica, glad it was useful!

[@mariansunglao6161]

Love this Vid! so easy to follow

[@thehumanbodyoversimplified5381]

thanks Mayan :)

[@kathrynjohnson3272]

Thank you for making this easy to understand.

[@thehumanbodyoversimplified5381]

You're very welcome!

[@michaap3]

super simple, thank you!

[@thehumanbodyoversimplified5381]

your welcome!

[@rgutierrezz]

Fantastic ! Thanks !

[@thehumanbodyoversimplified5381]

your very welcome!

[@afsana929]

Wow your video is just awesome. We want more simplified videos on different topics❣️❣️

[@thehumanbodyoversimplified5381]

Many thanks, hopefully i'll get the chance to work on some more soon!

[@mikaelaisaninja]

Nice. Just wish you talked more about length of vessel and blood viscosity.

[@joanelynadonis4852]

Nice! 🙌 Thank you

[@thehumanbodyoversimplified5381]

Your very welcome!

[@cheriedhar8010]

Great job man...

[@thehumanbodyoversimplified5381]

many thanks :)

[@shrdani]

Thank you for this, really helps me :)

[@thehumanbodyoversimplified5381]

glad it was usful!

[@maryliedtojoseph]

Very useful video! Thank you from a student nurse :)

[@thehumanbodyoversimplified5381]

glad you liked it :)

[@MambaCool20]

thank you so much

[@thehumanbodyoversimplified5381]

You're welcome!

[@shuggi420]

Well Done Dan

[@thehumanbodyoversimplified5381]

Many thanks :)

[@jzoe7382]

Good video, thank you

[@thehumanbodyoversimplified5381]

Glad you liked it!

[@factchannel8795]

Dhanyawaad (thanks)

[@thehumanbodyoversimplified5381]

your welcome :)

[@androskeleton9295]

A stupid question but it's really confusing. How does vasodilation improve perfusion as we're told but at the same time decrease blood pressure? Aren't those two things mutually contradictory? If blood pressure decreases then perfusion would also deteriorate?

[@thehumanbodyoversimplified5381]

not a stupid question at all. when we talk about vasoconstriction and BP we are taking about systemic resistance, eg. the combined effect of all the blood vessels constricting through out the body. when we talk about vasodilation and perfusion we are often referring to the smaller blood vessels supplying local tissues. The smaller blood vessels, direly supplying the tissue, need to be dilated enough to allow blood to flow. At the same time, larger vessels may be constricting increasing BP. Hope that's helpful, its a complicated question that's hard to answer in brief.... Dan

[@mujtabadakhil2543]

Thanks baby 😍

[@thehumanbodyoversimplified5381]

No problem 😊

[@angieweathers7180]

I don’t understand how you say if the heart beats too fast there will be no time to fill it in adequate amounts so the blood ejected will be lower thus cardiac output will be lower but then you say that if we increase heart rate, cardiac output will increase?? Doesn’t one contradict the other?

[@thehumanbodyoversimplified5381]

there is a diminishing return to increased heart rate. Up to a point an increased HR will increase output, and therefore BP. However if HR increases too much then filling time (preload) begins to be adversely effected and BP will be reduced. The heart has to be going pretty fast before BP starts to reduce. Hope that makes sense.