The Cardiac Cycle and PV Loops

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Күн бұрын

A discussion of some of the nuances of the cardiac cycle, pressure-volume (PV) loops including changes observed in different pathological states, and myocardial work/oxygen consumption.
0:00 Introduction
0:41 Nuances of the cardiac cycle
5:48 PV loops
16:10 Myocardial work and O2 consumption
20:15 Summary
#cardiovascular #physiology #heart

Пікірлер: 21

@TheNotedAnatomist Жыл бұрын

Exceptional video tutorial! Your key points were so clearly delivered and i loved how simplified your graphics are. Thank-you!

@vishveshbhatt9297 2 жыл бұрын

A brilliant video..As always..Nice visual representation of common clinical scenarios and physiology/pathophysiology behind them. Thank you for bringing these brilliant and highly informative videos. Love from India.

@OwenMcKinley 2 жыл бұрын

I have a test in 6 hours on these concepts! Wicked timing! Thank you, Dr. Strong!!

@tiago4007 2 жыл бұрын

You deserve a million subscribers. I hope you never stop making videos - yours is the best medical channel on KZfaq. Thank you so much for your wonderful work. Much love from Brazil.

@sunving 2 жыл бұрын

Thank you very much Doctor Strong. I just get through first round as always I thank you that “ if you can not remember anything , please remember the picture of loop” I love this :) . You are a great lecturer despite this I will have to watch this many time to somewhat get it. Time fly this is about to end the year already.

@amingolmohamad9365 Жыл бұрын

Thank you very much Dr Strong, an excellent learning resource I have followed your channel for 7 years, I remember refining my understanding of PFT interpretation from your videos years ago. I have since completed training in Respiratory Medicine. I continue to enjoy watching your excellent videos, they are particularly useful for my ongoing critical care training.

@StrongMed Жыл бұрын

Thank you so much! I'm very glad the videos have been helpful!

@leonardotedesi972 Ай бұрын

One of the best videos on pv loop. Thank you very much

@cornelbacauanu1544 2 жыл бұрын

Superb explanation of difficult concepts and correlation with clinic. Thank you.

@xx-mq6mf 11 ай бұрын

Thank you so much. Pv loop has been difficult to understand from looking at the paper alone. This video helped me so much!

@amingolmohamad9365 2 жыл бұрын

Thank you as always Dr Strong, I've followed your channel since 2016. Would you consider future videos on selected haematological malignancies and the foundations of their chemotherapeutics?

@yuxiao8294 2 жыл бұрын

thanks for this amazing video !

@youssefkhial6791 2 жыл бұрын

thank you Dr Eric .. I have one question, ginving the fact that coronary artery disease is the number one cause of heart failure, how do you explain the fact that heart failure patients rarely develop angina (independently of its mechanism)

@texastexas4541 Жыл бұрын

You are a GREAT teacher. You know exactly what to say for clarity and effectiveness. At 8:26 for point 2, is it DB or MAP? My teacher told me it is MAP. Thanks.

@user-wz6oo9bq5j 2 жыл бұрын

Great lecture in 22 minutes. Thanks Dr. Eric. Are you considering topics like HCM or ARVC in future videos ?

@StrongMed 2 жыл бұрын

Thanks for the comment! I may someday incorporate HCM and ARVC/ARVD into this specific series, but I'd have many more videos to get through before reaching them (heart failure, CAD, arrhythmias, etc...). In the meantime, I do have a video that covers HCM and ARVC from an EKG diagnosis perspective (but covers a little of the genetics/pathophys as well): kzfaq.info/get/bejne/gtNhe6SeqNTWaXU.html

@aliasgharabbasi1155 Жыл бұрын

PERFECT!

@texastexas4541 11 ай бұрын

Please answer this question. I think all textbooks show it wrong. SV increases as EDV increases and they all shorten to the same ES point on the ESPVR curve. Why should it shorten to the same end systolic pressure or point? If you increase SL (as in higher EDV) you should get more force (Force-length relationship) and more force means higher pressure. If they all shortened to the same ESP when you increase EDV, how would they even get the ESPVR curve?

@texastexas4541 Жыл бұрын

6 min Time independent? Why? Doesn't contraction (isovolume cont) and relaxation (Isovol rel) depend on time as well?

@7amzawi-Senpai 2 жыл бұрын

Are there another videos in this series?!

@StrongMed 2 жыл бұрын

As of now, this series on cardiovascular physiology has 5 videos, but is ongoing and will probably end up with 10-11 (depending on whether I decide to include cardiac embryology). I'm hoping to post the next one on hemodynamics in ~2 weeks. kzfaq.info/sun/PLYojB5NEEakWY3ZS0acDMw4nbEZV-y7pk