Pressure Volume Loops

My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
For educational purposes only; NOT medical or other advice.
Some videos contain mild profanity and hyperbole solely used to assist with memorization. Viewer discretion advised.
Opinions are entirely my own.

[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.

[saipratibha]

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

[carolineb]

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)

[nasrudinabdi]

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.

[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!!!

[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-sngn]

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

[celMT]

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!

[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.

[katrinavillegas]

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

[thezenithfarm]

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 !!

[muneebtakesmedicine]

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

[keishawarn]

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

[sana]

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

[jimmyponce]

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

[sdiofjsoidjf]

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

[Michael]

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.

[marab]

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! :)

[masumpatel]

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