From Basics of 12 Lead ECG to How Waves are Produced: Everything about Normal Electrocardiogram
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- Опубліковано 9 чер 2024
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Everything Normal Electrocardiogram: From Getting 12 Lead ECG to How Normal Waves are Produced | Normal EKG | Normal ECG
An electrical meter or a lead, records the potential at its positive end as compared to the negative end. If it's at a positive potential, it shows a positive reading. And if it's at a negative potential, it shows a negative reading. If the potential on both ends is the same, it shows no reading. It can record only that portion of the electrical activity that falls parallel to the direction of the electrode placement. The perpendicular activities, are not recorded. In the heart, the activities happen in many directions in three dimensions. So for better mapping of these activities, we use multiple leads. Three standard-bipolar limb·leads are created on the coronal plane, by connecting electrodes at both arms and the left leg. These three connections represent the tips of Einthoven's triangle around the heart. 3 augmented-unipolar limb·leads are created using the same electrodes. Each augmented lead, uses one of these electrodes as the positive end, and a combination of the remaining two as a negative end. For 6 chest·leads or precordial·leads on the transverse plane, a positive electrode is placed on the chest, at different points around the heart. And they all use a common negative connection obtained by combining all three electrodes on the limbs. This is equivalent to putting their negative electrodes in the middle of the heart. Each of these 12 leads records the heart's activity from a unique angle. So some areas are better recorded in some leads than others. In normal ECG, the P wave is produced by atrial depolarization, the QRS complex is produced by ventricular depolarization. Atrial repolarization occurs along with the QRS complex, so it's obscured. Ventricular repolarization produces the T wave. Different intervals studied in ECG are the P-Q interval or PR interval, QT interval, ST segment, and RR interval.
Chapters:
00:00 Intro
00:38 Basics of Recording Electrical Activity
07:57 12 Lead ECG: Introduction
09:11 Standard Bipolar Limb Leads
11:45 Augmented Unipolar Limb Leads
13:26 Unipolar vs Bipolar Lead: The Difference
13:51 All Leads on Frontal Plance: A Summary
14:25 Precordial Leads (Chest Leads)
15:51 12 Leads: Summary and Importance
17:46 How Normal ECG Waves are Produced
25:27 Intervals and Segments in ECG
26:54 Summary
Dr Vipul Navadiya
Nonstop Neuron
Medical Animation
Medical Animation Videos
Physiology
DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.
I am a practicing Dr and I have never seen such a nice video ever on ECG , congratulations 🎉🎉🎉
Hi
Where are you from
I am from U.P state of india
Never saw anything like this whole career of 30 years. Kudos to you. Explanations like this in medical school could make the life of students so simple. Please keep up the fantastic work. 🙏🙏
Has to be one of the best explanation of ecg. Better than any text book I've read
Amazing video! great job! One of the best ECG videos i EVER watch. If you continue to break down medical topics as basic and easy to understand and make this your “trademark voice”, i bet you will gain so much more subscribers. Your channel is a hidden gem 💎 I Subscribed for sure. And I LOVE the animation!!! 👍
Good description. I like to add one thing about the AV node. The isoelectronic line represening the AV node conduction represents one more thing than simply the lack of potential. It represents the delay in conduction caused by the slow calcium channel instead of the fast sodium channels in the other parts of the heart. This delay is called 'the nodal delay' that is needed to give the ventricles a time to dilate while the atria are contracting. Otherwise, the atria and ventricles would contract simultaneously and the blood will not go to anywhere from anywhere. Thank you.
Thank you sir ❤
Marvelous explanation of such a difficult topic.
Thanks a lot Sir.
With Love, Lot of Appreciations and Best Regards from Pakistan
Wow! I am a seccond year medical student and I could not understand anything from my professor(because he just read the slides) and I felt that I am idiot but thanks to you I understand everything. Thanks a lot!!
Same 😅
Same for me and just watching this I understand way better than Dr. S just reading the slides🤦🏽♀️
Finally, I have found the video that explains the basic of 12 Lead ECG on electrical level! Thank you.
Most welcome. Please share with your contacts. Thank you.
Super!! I did my notes , graphs and sketches time ago to understand it as it was explained here , but i lost them like twice and was lazy to repeat it hahha so you save me some time to refresh my memory from time to time😁
The best video about ecg basics 👌
OMG all doubts cleared in one go
This one is huge❤thx a lot for this one.
Nice video. But the wave presented was only from lead II. Should have also added charts showing the different wave forms of all 12 leads of a 12 Lead ECG of the same person.
I'm not a healthcare professional but wanted to understand the rationale behind the ECG science.... Never seen such nicely and detailed explanation of the 12 lead ECG theory. Love it!
Very well explained, thank you
This demo is Not only for RPN,DR's or students.Everyone who is interested in GK must watch and digest this video.This subject has never been demostrated like this in any Lecture or vedios.Thanks to the originator.
You're the best man.... Nobody will be able to explain like that.... Thank you so much. 😮
_So_ well done. Biology made clear to an electrical engineer!
Huge thanks, love all your explanations
Greetings from Nairobi and many thanks for your educative video. I have learned a lot.
Brilliant video. Absolutely brilliant.
This was explained so well! I am so glad I came across this video. Thank you so much for creating this!
This is the best Video so far. Thank you Dr.
it was immensely useful... thank you for making it interesting.your efforts really made a change in the way i learn
This is very well presented how electrical knowledge used in cardiovascular detection. Thank you.
Thank you sir ❤️❤️ for great explanation.
Thanks so much for sharing your knowledge with us. I appreciate you! ❤
Part two . About irregularities
Also video on CT scan , ultrasound
I’ve seen many presentations on this subject but this one is very well done and easy to follow. The shared “electrode” in the middle of the heart I’ve always known as a vector derived “central terminal”
Such an amazing video...thanks for making my concepts clear in such less time.
This will be an excellent learning material for my students to have a good fundamental on the basic physiologic principles of ECG. I'm certain that they will benefit from it.
huge thanks
Thanks. I can tell you put a lot of heart into this lesson. Most excellent. 🙄
what an explanation ....great sir
This is ganna be viral.
awesome!
god bless you sir this was amazing
Thank you ❤❤
This video is so useful thank you so much
Thank you
Simply excellent presentation.
Such a good video!! Thank You.
Please do common cardiovascular disease on ECG in this same way
I'm searching for someone to explain the pathology regarding its electrical changes
It was one of the best videos ab😢ECG out
Nice explanation 🙌
Very interesting description about the cardiac cycle, we like non-medical fellow can easily understand what an ECG excatly is
Wow! I learned a lot!
Best explanation!
Thank you 🤩
Fantastic👌
Thank you❤❤❤
Wow thanks
Amazing tutorial that speaks comprehensively with animations enlighten any layman to a pro on this subject. My highest respect to you for this great work and knowledge sharing. God Bless You sir..... 🙏🙏🙏🙏👍👍👍👍💐💐💐💐
setelah sekian purnama akhirnya paham, makasih🥰
Awesome video thx
Excellent, I wish I gave you a great reward..
thank you for simplified explanation😄
Please share.
Sir please upload lectures on cardiac arrhythmias
bestest 30mins to spend ❤
amazing
excellent
Very nice
awesome
you are the GOAT in this
In aVR how it is positive to negative
I thought atrial t wave will be positive thansk for speaking about it as no one dare to tell thankss ❤❤❤
how come no QRS measurement? Usually used to check for bundle branch blocks.
You are super hero
AvR lead looks from the right shoulder and it sees the positive depolarising wave moving left side.Means DP is moving away,hence QRS is negative in aVR.Even in V1 the R wave is very small compared to V6.If aVR is positive it either means lead placement has been reversed or it's a case of dextrocardia.
thank you doctor your are the best
You are welcome!
Imagine the gymnastics our brain had to do in the eighties when there were no such multimedia tools.we created and edited it by our bare hands.and there were few images to simplify the nasty plot.
I always wanted that concept should be taught in the way as easy as to watch cartoon..😁now u made it real..❤🎉
I hope you enjoy all the videos on the channel.
wow
😆best 💯
Use piezoelectric and not current is better so no need of current because the current easily be hacked...normal EKG is justlike executing without saying it...
Depolarization is becoming more positive not negtive
🤌🏻🤌🏻🤌🏻
They didn't explain it as clear as this in a 2 - hour session in the college
Thank u 🥹
Excellent
Very useful thank you