This is the best R on T explanation I've ever seen, just opened my mind, thankyou!

The third step of delayed depolarization it will an open another window for searching , thank you so much .

In fact it is a brief , concise , precise , more practical lesson particularly to those who have some background , hopefully to get more videos such these . Thank you do much sir , and hope all the best .

AMAZING!!!! These are fantastic!

The main cause of short PR is the slow raising the initial QRS ., rather than premature atrial contraption this from my point of prospective . Thank you .

Gr8 gr8 absolutely short n perfect

This has been very helpful in my medical surgical class. Thanks!

wow.. thank you, that was amazing!

e ecg you show up for wpw syndrome is actually what happens in av blocks. As far as I know, in wpw there is a wider qrs complex with a delta wave (a spike before the top of the R, and the increased heart hate by activation of the AV node because of the re-entrance of the signal. Therefore, It increases HR both in the atria and in the ventricles, not just in the atria with more P waves, that's AV block.

Excellent videos and method of instruction. Thanks so much for taking the time to develop and post your lectures :)

Really , is comprehensive , easy , educated way , thank you so much .

Thanks you so much Andrew :)

great... thank you very much Mr andrew... it was very helpful... cheers from greece

This has been helpful, thank you

hey many many thnks ............urs video is excellent

thank you!! I'm doing great reviewing with your videos :))

thank you for the upload.. it really helped me understand this lecture.. i was confused with the text book but now everything is very clear... ^_^

Great lecture, Thank you

Thanks!!!

Great lecture and video! Thank you for posting! It was very helpful!

Great MR. Andrew Wolf, I take notes from your lectures for taking my patho classes.......Thank you so much

Thank you so much , although the third step of delayed repolarization as I heard ?!

very useful.. Thanks a lot.

Thanks, this video is concise, precise and practice. But you should improve in the pathophysiology of arrthyms as re entry, problems with automatism, for some topics that review with more detail. But, it's great, thanks again

Thanks brotha

fantastic

Thank you

Thankyou 💖

Like Kata, I wonder about the hyperpolarized fase too. As far as I've been taught, this R over T phenomena could happen in a normal myocardia cell with no hyperpolarized cells?? Could you please explain this more deeply? Thank you!

Can you do video about hyperprolactinemia?

there are not four av valves!

Sir I have palpitation problem and I consult a cardiology I had tested EcG,echo,Tmt,Holter,blood test and result came out normal but some time I feel tightness in my chest and pain also sir it is related to heart or not sir please tell me or suggest me than I can gid rid of this problem

Are their any difference between early depolarization and early after depolarization please ?

what is that noise at 18:19 ?!!!??

Hi there you said at 19.10minutes, hyperpolarisation is at -90mV. How is that so when it would be a postive value during the polarization phase? I'm a high school student so please bear with my naivety! Cheers

Could u do video about aneurysm

I don’t understand why the cardiomyocytes are hyperpolarized in stage 1 and 2? Shouldn’t they be depolarized because of calcium entering in the cell? A least all the other action potential graphs that I have searched so far show positive values in the stages 1 and 2 of the myocardial action potential (And also your video of action potentials in the heart). And the explanation for the R over T phenomena doesn’t work if it is depolarized. Thanks for helping me.

My heart is always beating at 90-105 beats a min. starting to scare me I just turned 18.

thanks for the information.. but the telling is so slow and some times getting bored .. I hope to make it better in the next time

Stopped watch after he drew two holes between each set of atria and ventriculi.

Gr8 gr8 absolutely short n perfect