From Basics of 12 Lead ECG to How Waves are Produced: Everything about Normal Electrocardiogram
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- เผยแพร่เมื่อ 22 พ.ค. 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 🎉🎉🎉
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.
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!
You're the best man.... Nobody will be able to explain like that.... Thank you so much. 😮
The best video about ecg basics 👌
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.
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🤦🏽♀️
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”
This one is huge❤thx a lot for this one.
OMG all doubts cleared in one go
Greetings from Nairobi and many thanks for your educative video. I have learned a lot.
Huge thanks, love all your explanations
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.
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.
This is very well presented how electrical knowledge used in cardiovascular detection. Thank you.
Part two . About irregularities
Also video on CT scan , ultrasound
Thanks so much for sharing your knowledge with us. I appreciate you! ❤
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.
Thank you sir ❤️❤️ for great explanation.
Simply excellent presentation.
Such an amazing video...thanks for making my concepts clear in such less time.
huge thanks
Very interesting description about the cardiac cycle, we like non-medical fellow can easily understand what an ECG excatly is
what an explanation ....great sir
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
awesome!
god bless you sir this was amazing
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..... 🙏🙏🙏🙏👍👍👍👍💐💐💐💐
Excellent, I wish I gave you a great reward..
This video is so useful thank you so much
This is ganna be viral.
thank you doctor your are the best
You are welcome!
Fantastic👌
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.
They didn't explain it as clear as this in a 2 - hour session in the college
Thank u 🥹
Wow! I learned a lot!
Best explanation!
Such a good video!! Thank You.
Thank you 🤩
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.
You are super hero
setelah sekian purnama akhirnya paham, makasih🥰
excellent
Sir please upload lectures on cardiac arrhythmias
Awesome video thx
thank you for simplified explanation😄
Please share.
Thank you❤❤❤
Nice explanation 🙌
Wow thanks
bestest 30mins to spend ❤
awesome
In aVR how it is positive to negative
you are the GOAT in this
I thought atrial t wave will be positive thansk for speaking about it as no one dare to tell thankss ❤❤❤
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
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
🤌🏻🤌🏻🤌🏻
Excellent
Very useful thank you