Pressure Volume Loops

[@DirtyMedicine]

Isovolumetric* .... LOL I really cannot spell. Also to be perfectly clear, EF = [(SV/EDV)*100]

[@LASAGNA_LARRY]

A visual trick: The 'C' in increased Contractility reminds you the P/V loop shifts left. The 'A' in increased Afterload reminds you the P/V loop narrows and points up (pressure increases). The 'P' in increased Preload reminds you the P/V loop shifts right.

[@anjaliharidas7617]

omg thats genius!!

[@praveenbharathsaravanan]

love this

[@obadatarawneh]

wow

[@heba_seyh9]

whaaat!! amazing !!

[@ashleyyyyyyyy89]

but how does p mean go right or c mean to go left?? am i missing something?

[@saipratibha5632]

Honestly don’t know what i’d do without your channel. Thankyou for everything you do!

[@carolineb133]

I can honestly say these videos are the highlight of my Step 1 studying!! Since isovolumetrics require all valves to be closed --> mitral/aortic regurgitation completely lose isovolumetric shape (also increased EDV b/c extra blood, incr SV) - regurgitation is a BLOB of blood so shape is a BLOB Aortic stenosis --> increased aortic pressure --> increased afterload shape Mitral stenosis --> impacts diastolic filling --> decreased EDV bc impaired filling, decr SV, decr ESV (mitraL - L shift)

[@AqsaSadiq-x6x]

Thank you so much ❤

[@nasrudinabdi1635]

Since this man has done a lot for us, let us support him in any way we can so he can continue to educate generations. Valuable lessons and a teacher to millions.

[@Dr.Aayushi]

I literally had stopped reading heart physiology 2 months back when I read PV Loops lol (thanks to the graphs) and started reading another subject for step 1 and decided that I’ll tackle that topic later on. Little did I know that you’ll make such a fantastic video on this topic. Today, I’m delighted to announce that I shall resume reading cardiology, all thanks to this video. 😁 Thank you for all the additional free points I’ll score on the exam with your help.

[@RNA842]

Same happen to me literally,when i get something so hard i just stop that and wait for his videos😄

[@TheMeedoali]

I admire your way of explaining things in an easy, straightforward method along with the simple; yet, effective graphes. I cannot thank you enough, sir! Great video, keep it up! and good luck to everyone!

[@Anonymous-sn4gn]

Thank you so much for this video. You made a horrendously confusing & difficult topic so much easier to understand!! You’re godsend. Once I pass my steps, I will give you all the credit each time anyone congratulates me. I’d be so lost without your channel

[@Gowpanxlaianskzkakansnsmzciala]

Been watching almost all of your videos and love each one to the core. But man, THIS VIDEO IN PARTICULAR IS ONE OF THE GREATEST!!! you made it genuinely easy and simple to understand! Thank you very much!!!

[@celMT195]

I am so happy I could cry! I have spent so much time during lecture portion of med school and Step studying trying to figure these out in a way that I could understand. I was one more attempt away from sacrificing this topic to the Step gods and wing it on the exam. Not anymore!!! Love all the Dirty Videos!

[@katrinavillegas2924]

whhhaaaaatttt??? 🤤🤤🤤 needed this for step 1, now on step 2. 🙏🏻 never too late to learn/re-learn! thank you!! :)

[@muneebtakesmedicine]

Thanks for taking care of all the 'dirty' topics of medicine and making them easier. Thank You ^^

[@thezenithfarm3695]

Thank you ! Thank you !! I am a respiratory therapist and try to use all tools and options available to me. The lungs are the most valuable and under educated I believe!! Thank you for making this one !!

[@Michael75557]

Easy way to remember these for blackout moments: A comes before M (going downwards the Aortics are up and Mitras are down). Also C comes before O for the ones on the left.

[@shbahjet8335]

😊thnx

[@sana7108]

Been procrastinating to study cardio because of this topic. And lost all interest to continue. Now this one video has helped me so much that I can't OMG ❤ thank you so much

[@masumpatel6069]

If you already know the basics , just want to learn the pathological changes - skip to 16:13 Thank me later 🙃

[@muneebtakesmedicine]

If it's dirty medicine's page then... *ahem ahem* "We don't do that here"

[@chessblunderer77]

SV= EDV-ESV EF=SV/EDK CO=SV x HR MAP= Dbp + (PP/3) (ez version ) PP= Sbp-Dbp

[@sdiofjsoidjf]

I got your pressure volume loop right here. Amazing vid as always, so much better than garbage first aid

[@socceratesmedicine]

Admirable dedication to medical education for rising physicians. Excellent video

[@keishawarn9088]

Literally checked your videos for this topic yesterday! Thank you so much!

[@moosemoose5003]

Dude my step 1 is on nov 26 !!! u really saved my ass lol Keep up the good work!! Teaching is a god given talent!!

[@SidrahAnmol]

U r amazing @dirtymedicine So much respect for u 👍

[@jimmyponce1]

I was searching for the previous video about this topic and ended by viewing this one. Ty for your work!

[@Stephanie-uk8eb]

Dirty you saving my medical school career!!!!! Can’t thank you enough🎉

[@marab8608]

Can also use the change in HR to note the change in peripheral resistance, ie: norepineprine has a DROP in HR, therefore, PR increases. This trend works for the other two also! :)

[@dr.dipendrakandel]

Love the way you explained. I will use your reference of teaching in my videos too. Really appreciated. Than you very much.

[@greenred1174]

Great.... now can you explain it to me like I'm a first grader? Just kidding, this video was absolutely awesome and simply explained a process that is so overcomplicatied for no reason. Thank you!

[@afrahnaseer2640]

Idk why I am crying. This made it so easy. THANKYOU😭😭😭

[@hschultz123]

In thermodynamics, it is called a PV cycle. Taught poorly in med school, but covered in freshman physics.

[@socceratesmedicine]

Hoping to inspire and education the next generation of physicians just as you are!

[@faizanahmed5368]

you are master mind, thank you! no one could make me understand this but YOU!!!!

[@mohamedsubahi6756]

amazing video! I would love a Question video on it including several drugs actions on it. thank you

[@katiel1383]

So happy there is a new video and it's going to be on my upcoming exam!

[@anaacosta3192]

I`ve been waiting for this video for so long!!! Thank you thank you thank you

[@jokeynilorenzotavarez1364]

This was really amazing. Thank you

[@tim_0917]

thank you so much , this was highly needed , ur phenomenal

[@drmoezawaung]

an arrow head in counter-clockwise direction will make the graph much easier to interpret.

[@almostawhisper1990h]

You are such a blessing ❤ thank you so much ❤

[@michaelokonkwo5126]

God will bless you. Am so happy here

[@RomaBaiMD]

MAAM COCO From blue to red.. Mitral close1, Aortic open, Aortic close2, Mitral open 3,4

[@semirasalih5421]

Best explanation

[@michaelesson2473]

Incredible explanation!

[@lord-mf2sf]

Plz Carry on with such important concepts for step 1

[@fatimasuleman1980]

THANKS A TON. GOD BLESS YOU

[@lord-mf2sf]

Lots of love from Pakistan 🇵🇰🇵🇰🇵🇰

[@i1111ss]

Hello! Video is superb, but one thing I want to know, that the end systolic volume will decrease, as we increase the afterload as graph will shift towards right. Please clarify

[@drmoezawaung]

My question is " can we know the blood pressure ( both SBP and DBP ) just by looking at this pressure-vol loop?

[@danielvisaya]

amazing teacher, thanks so much!!

[@AbubakarUmarMusa]

Thank you 🙏

[@drmoezawaung]

how to measure Volume and Pressure of LV? .... Volume might be measured by Echo-cardio. how about pressure? pressure probe inserted in LV?

[@HT.100]

return of the king

[@deedhymaira2040]

I really wish i could meet you one day. You're awestruck, amazing, awesome. Words cant describe my regards for you.

[@darinjohnson2285]

hi, long time fan, one time patreon here)) why only stroke volume change ie NO change EDV or EF w/ increase preload? in contractility explaination u said ESV go down and sooo EF go up.. but on preload graph it show only SV change(increase) ?? EDV point was shift right to higher volume,, and should be also change EF?? cheers dude! :))

[@naziashahiraa8114]

I've been waiting for this since so long. Finally it's here. Thank you!

[@ishrajalal1092]

Thanks for the video dear! ❤️

[@nuriramadan4821]

You're awesome, thank you!

[@yippykayyay]

@18:20, could someone help me understand where I made my logical error? I was thinking an increase in contractility would show as an increase in pressure (in addition (ie the red line would travel at a higher curve than what's expected in normal?)

[@sunmudiavita5590]

Amazing video

[@asdfjklasdfjkl408]

Dirty, would you recommend the AMBOSS q bank?

[@abrahamkibret6591]

Thank you doctor

[@Sleepasmrhunt]

End systole pojnt should be at orange point bcz at the point systole ends and diastole starts....as end diastole point is at the blue point becz there diastole ends and systole starts...plz explain

[@zakariyyagardee8934]

Please do a JVP video next :)

[@ricardotorres3709]

Excellent

[@valyntang1696]

this is so good thank you!!!!

[@JohnD-do3ge]

Why's he calling the bottom circles pink & purple they look red & blue ??

[@Yusufxx319]

Becouse he isn't talking about the circles ... just see the colours on x axis (end sistole and end diastole volumes)

[@rukayahg9671]

Thank you so much

[@AqsaSadiq-x6x]

Thank you Dirty Medicine ❤

[@sema7280]

NOW I AM IN LOVE WITH YOU CAUSE YOU TAUGHT ME THIS TOUGH SUBJECT

[@robsongrubba]

thank you!

[@mohamedmubarak326]

thank you very very very very much

[@taha20raha]

Thank you so much❣

[@dfjunior11]

maestro.. that is all

[@Ali_Ali948]

You’re the best!

[@ehsanniazai5789]

thank u so much

[@Gulshangurban]

Great

[@olll1435]

you're the best ❤❤❤❤❤❤❤❤

[@kimsunsuhan1524]

Respectfully, I fking love you

[@nomi2438]

Thanks

[@YourDay67]

Amazing

[@StellarHunterYT]

Oh thank you soooooo much

[@PowderChaser]

You're a GOD!

[@MahnoorWaqas-u6e]

Omg thank you 🎉

[@Salmanahmedtariq]

I love you man

[@philosoraptorz1787]

My hero

[@humairafatima4230]

Hey dirty medicine please simplify cardiac drugs portion also.... please

[@talhaasif3820]

poetry

[@lord-mf2sf]

❤️❤️❤️

[@abdelrahmanmahmoud2527]

I love you ❤️

[@Элина-ъ6к]

😍😍😍

[@mohamedmustafa3671]

First comment ❤️

[@Geoblek1]

mehnn this guy

[@TheWestDweller]

ARRRNGE

[@SidrahAnmol]

U r amazing @dirtymedicine So much respect for u 👍

[@LorindaJeanMD]

Thank you!

[@logeswarisivakumar8446]

Thank you!

[@deepalisharma8173]

Thank you so much