Thanks for such a great tutorial! I thoroughly enjoyed watching the amount of material you covered in such a short amount of time. Your use of graphics, animations, text all linked to your narration was a joy to behold. Thanks for sharing with us all.
My classmates and I in an acute care DNP program are EXTREMELY grateful for this. We all had quite a lot of ECG experience before, but absolutely none of us had any experience with the cardiac axis, as that was usually dealt with by other providers when we were RNs. This was a succinct, helpful presentation, & we've passed it around among pretty much everyone in our class. Thank you so much!
This is so helpful! i was so tired reading books and yet can't really imagine & understand it and then there goes your video, all short and clean & it's beautifully explained, thank you!
Thank you, thank you! As an EP professional (but one whose job rarely requires analysis of the axis) this is a lifesaver! Now I can easily calculate the axis for each of my patients which will actually help me be better at what I do. :-)
You sum up all the information I learn in an entire day within just a 4 minutes video. I wish I know about this video sooner. Extraordinary work! Subscribed.
@@NickSmithUGME I have a q sir , as u explain in first case by looking positive aVF so, what if aVF is negative will we have to shift it to -90 degree if so then the ans would be LAD (in the beginning case 1 which u had discussed )??? Plz explain . THANKS YOU
WOW! after years of being a med student and panicking when a consultant asked me about axis deviation, i finally understand this!!! thank you SO much!!
Wow... that was very well explained. 12 leads have been the death of me however this video has given me hope of finally understanding how to calculate the axis. Thank you!
I can't express my happiness for being familiar with your MAGIC explanation about Cardiac Axis , ECG , as well as Reading Strip rhythm ... which I've suffering from them for months ... I'm really smiling form ear to ear and impressed with your greatness ! God bless you Dr.Smith 🌹🌹🙏🏻🙏🏻
@nick smith I'm sure this video isn't perfect, but I'm so grateful that you posted it. Everything else was too detailed and I didn't know where to start. This is a great starting point, so THANK YOU!!
Leads I, II, and III are the limb leads. aVR, aVL, and aVF are the augmented voltage leads for the right arm and left arm and left foot. They are augmented because the sum of voltage called Wilsons point created by the limb leads I,II ,and III is to small to create a meaningful deflection on the EKG. This needs to be corrected.
Regina Becker Agree entirely with what you say but as it makes no difference to the interpretation of the axis I am going to leave it as I haven't got the time to re do the video. Sorry! N
for all the people who are willing to understand the true electric fundamentals of ECG - it is NOT the lead, it IS the + ELECTRODE towards which the el.impulse travels and hence generates the positive(upward) deflection on the ECG graphy.
Thanks for this, quite useful for the cardiology lab portion of my exam! It's tricky at first but it goes down to first principles interpreting the magnitudes and angles of your vectors
Hi. It´s a great educational video. I suggest that you should change the video in the 2:51 minute, because the axis is in -120 degrees, not in -150 degrees.
I’m only 14 but this stuff is really really intriguing to me. It’s always fascinated me my whole life, and I’ve been trying my best to understand the raw basics of cardiology. I’ve checked out books from the library and done research online, but this video did quite help a lot on this topic. Thank you
Excuse me for the note: when I correct the electric axis, considering the equiphasic derivative, if the QRS is mainly positive on the equiphasic I correct the axis by 15 degrees towards the positive pole of the derivative, and vice versa. Correct me if I'm wrong
Great video, but I have a question. Let's you have a equiphasic Lead II, so you look at Lead aVL. aVL is positively deflected, so is the electricity going towards aVL at -30 degrees or +150 degrees? I ask because some of my classmates are convinced that if a lead is positive, you follow the wheel down the positive numbers (+150 degrees in this case). But I think that since it's positively deflected, it should go towards the aVL at -30 degrees irrespective if the numbers are designated positive or negative.
2 hours of class lecture of gibberish...... into 5 minutes of UNDERSTANDABLE information. THANK YOU!
Thanks for such a great tutorial! I thoroughly enjoyed watching the amount of material you covered in such a short amount of time. Your use of graphics, animations, text all linked to your narration was a joy to behold. Thanks for sharing with us all.
A word of recommendation from the best anatomy teacher, I must never miss watching this video then...
Of a class of three ppl and a month to learn this has no comparison towards this awesome 5 minute video.
I’ve been trying to understand this for hours, and you just explained it perfectly in minutes.. thank you!!!
My classmates and I in an acute care DNP program are EXTREMELY grateful for this. We all had quite a lot of ECG experience before, but absolutely none of us had any experience with the cardiac axis, as that was usually dealt with by other providers when we were RNs. This was a succinct, helpful presentation, & we've passed it around among pretty much everyone in our class. Thank you so much!
My pleasure 😊
@@NickSmithUGME sir will you read my ecg
This is so helpful! i was so tired reading books and yet can't really imagine & understand it and then there goes your video, all short and clean & it's beautifully explained, thank you!
Have tried to understand this for 4yrs. You've helped me finally give it a fantastic knockout
Honestly, the best explanation I ever had so far, I now understand it! Thank you!
You're very welcome!
After watching your video I finally had that "ah ha" moment for understanding how to apply this concept. Thank you for sharing this!
Every time I forget details about the cardiac axis I got back to this video ! It had helped me so much Thank you sir
"Congratulations you've just worked out the cardiac axis" EUPHORIA!
Thanks a lot!
Wow! The morning of my exam I watched this video and learned this way. Very simple. Very helpful.
It feels illegal for this to be this simple, best explanation! thank you
you’re welcome
I could never understand the cardiac axis until this video! Thanks so much!
Thank you, thank you! As an EP professional (but one whose job rarely requires analysis of the axis) this is a lifesaver! Now I can easily calculate the axis for each of my patients which will actually help me be better at what I do. :-)
You sum up all the information I learn in an entire day within just a 4 minutes video. I wish I know about this video sooner. Extraordinary work! Subscribed.
+Khôi Nguyên Phạm Thank you :) - obviously this is only a basic intro though
@@NickSmithUGME sir will you read my ecg please?????
@@NickSmithUGME I have a q sir , as u explain in first case by looking positive aVF so, what if aVF is negative will we have to shift it to -90 degree if so then the ans would be LAD (in the beginning case 1 which u had discussed )??? Plz explain .
THANKS YOU
WOW! after years of being a med student and panicking when a consultant asked me about axis deviation, i finally understand this!!! thank you SO much!!
Wow... that was very well explained. 12 leads have been the death of me however this video has given me hope of finally understanding how to calculate the axis. Thank you!
Thank you so much! You did it in just minutes rather than hours of reading!
OMG I HAVE NEVER SEEN SUCH A BETTER AND QUICK EXPLANATION, GOD BLESS YOU
First year medical student with an exam on ECG tomorrow- many thanks for this. It really helped!!
what happened to u? do u still at med school?
I can't express my happiness for being familiar with your MAGIC explanation about Cardiac Axis , ECG , as well as Reading Strip rhythm ... which I've suffering from them for months ... I'm really smiling form ear to ear and impressed with your greatness ! God bless you Dr.Smith 🌹🌹🙏🏻🙏🏻
Thank you a lot. Ur explanation allows me to understand just like within five mins.
I have tried to make sense of this for years- thank you for your clear explanation
Wow that the answer to all my confusions in determining cardiac axis, sir hope you have a great day
@nick smith I'm sure this video isn't perfect, but I'm so grateful that you posted it. Everything else was too detailed and I didn't know where to start. This is a great starting point, so THANK YOU!!
this the best video on cardiac axis i've seen so far.. amazing work. . thank you very much.
Clear, concise, and informative. Thank you for a great video!
First video on this topic which seems to be comprehensive for freshers too.. kudos
Thank you. The first time someone actually explained this so that I understood!
Wow... way better than my textbook... Thank you! :)
omg thanks to this video i didnt have to rewatch three hours of lectures, you saved my time 🙏🙏
you did in 5 minutes what my teacher failed to do in 30 minutes, thanks!
Leads I, II, and III are the limb leads. aVR, aVL, and aVF are the augmented voltage leads for the right arm and left arm and left foot. They are augmented because the sum of voltage called Wilsons point created by the limb leads I,II ,and III is to small to create a meaningful deflection on the EKG. This needs to be corrected.
Regina Becker Agree entirely with what you say but as it makes no difference to the interpretation of the axis I am going to leave it as I haven't got the time to re do the video. Sorry! N
I just thought where you had so many views it ought to be correct. Otherwise well done!
Regina Becker You make your point well - have added an annotation to the video and credited :)
Thanks
N
Clear and simple and comprehensive
Thank you sir
Clarity. Pure and simple. Thank you sir
Omg this just helped me tremendously! I have 2 months until my state exam and this was something I could NOT grasp
I'm currently revising ECG for an optional module in nursing at King's College London and this has helped me crack axis; my biggest thanks to you sir!
Insanely amazing vid!! No words can describe how beautiful this is
for all the people who are willing to understand the true electric fundamentals of ECG - it is NOT the lead, it IS the + ELECTRODE towards which the el.impulse travels and hence generates the positive(upward) deflection on the ECG graphy.
I’m a respiratory therapist currently learning ECG so we can recognize problematic rhythms. This was so helpful!
Thank you so much! I finally understood ECG axis calculation after 4.5 years!
This was actually one of the most difficult things for me in cardiac physiology until I came across your video. Thank you so much.
stupid
Best video ever. My all doubts are cleared .. Ty so much 🙏😁
You freaking legend dude thank you
thank you
This is so helpful! Thank you so much I have learned a lot through this tutorial.
Its just an amazing explanation.. great job👍👍👍
Love when something is summed up so well. Lightbulb moment!! thanks
Thanks for this, quite useful for the cardiology lab portion of my exam! It's tricky at first but it goes down to first principles interpreting the magnitudes and angles of your vectors
Thank you so much for such an amazing and simple to understand explanation !!!
Thank you! I had a report due and had no clue where to start. Cheers
Great educational channel. Not a medical student or anything. Here all by curiosity.
Hi. It´s a great educational video. I suggest that you should change the video in the 2:51 minute, because the axis is in -120 degrees, not in -150 degrees.
Yes, you are right
That was fantastic. Thanks so much.
This is absolutely beautiful. Thank you!
Thank you so much! Quick and simple explanation.
Works every time. Thank you so much! Subscribed!
Thank you sir! you just made cardiac axis very easy.
SIMPLE AND TO THE POINT
I’m only 14 but this stuff is really really intriguing to me. It’s always fascinated me my whole life, and I’ve been trying my best to understand the raw basics of cardiology. I’ve checked out books from the library and done research online, but this video did quite help a lot on this topic. Thank you
Amazing sir ! May God bless you.
Dude. this is crazy useful. Thank you.
Thank you.
You cleared my doubt...
YOU'RE ACTUALLY AWESOME! THANK YOU SO MUCH!
Thank you very much for the explanation. Finally, I understood how to interpret axis.
So helpful!! I have a cardio exam coming up!! -med student
The best ECG video!
120 degree the reverse positive lead 2 . thank you for your time .
Wow!!! Amazing explanation! Thank you so much!!
Thank you for explaining this so well.
Thanks Dr. Smith! this is by far the best video on lead calculation. Why should you move 15 degrees, is this part of a calculation?
Thanks really helped me out!
This helped a lot. Thank you very much.
Very well explained!
I'm so thankful you can't even imagine
Thank you sooooo much i understood very well.
This is perfect! Thank you very much indeed!🌸🌸💐💐🏵🏵
Thank you so much!!!! This was very helpful!
This was so handy, thank you!
So easy to understand thank you so much!
This is awesome ❤
This really helped me! I have one question, what if all leads are positive of negative, so there is no equiphasic lead? Thanks!
Thanks a lot!!! This is very useful.
Nice explanation... Five star..
Beautifully explained!
Oh my God this is awesome.. Thank you.. :)
great work. thank you very much.
Amazing explained! Thank you !!
Superb bro !👏
Where does the axis go if you are lying down vs sitting up?
Excuse me for the note:
when I correct the electric axis, considering the equiphasic derivative, if the QRS is mainly positive on the equiphasic I correct the axis by 15 degrees towards the positive pole of the derivative, and vice versa.
Correct me if I'm wrong
that was just what I needed
My book says (4th edition, Ellis) that the normal axis is between 0 and +90 degrees.
You sound like Ramsey Bolton.
Great explenation
lifesaver...simple and bull's eye
thank you
Now this is so clear for me :D thanks a lot
So if the wave form on Lead I is more POSITIVE than equiphasic, does tha mean that it is a LEFT axis deviation? Thank you for this video, by the way.
But when we have a vector perpendicular of the electrodes axis it's 0 means we see nothing on the ecg ? How is it possible that we have bipolar wave?
Thank you soo soo much.
Beautifully explained
Great video, but I have a question. Let's you have a equiphasic Lead II, so you look at Lead aVL. aVL is positively deflected, so is the electricity going towards aVL at -30 degrees or +150 degrees?
I ask because some of my classmates are convinced that if a lead is positive, you follow the wheel down the positive numbers (+150 degrees in this case). But I think that since it's positively deflected, it should go towards the aVL at -30 degrees irrespective if the numbers are designated positive or negative.
At this case you have to look at the DI lead. If it´s positive the axis is -30 degrees. If it´s negative the axis is +150 degrees