It's been 3 years since I was introduced to ECGs, and I've been since then trying to wrap my head around this very concept. Only 8 minutes of quality content did what textbooks could not in years. Superb video, thank you!!!
Likewise, and makes me wonder if I am an idiot or my teachers were unable to go back to the extreme basics this video provides... (possibly a mix of both)
He's NOT explaining anything ! He's simply stating a loooong string of facts one after the other. The reason this vid helped u is purely cause it helped fill in the blanks u had learned earlier. And i presume u didn't apply yourself well before.
I guess most of you guys are in med school. I legit don't understand most of what he said but explanation was great for the code I'm writing that represents this for my mechanical engineering class. Good luck future doctors
@Rofiq El I think if you look at Action Potentials to understand what is being said about depolarisation and repolarisation then it should make better sense.
As an engineer could you explain what does it mean that the dipole direction is towards the positive from outside what rule is this taken from? I used to love physics but this whole ECG thing doesn't make sense to me. (Just to make sure that I'm getting the video right: 1- The dipole moves toward the positive on outside that's why the vector at first points toward the positive electrode hence giving a positive deflection 2- However, at repolarization the ions were reversed that's why the vector was reversed and since the charges are moving away from the positive electrode the deflection was in the negative direction.)
@@hebaelnabawy8871 I have just the same question in mind. , I see I am not alone , because I have started to think I am the only one who has silly doubts .
@@ayanmajumder4144 ikr I have seen approximately 10 videos beside my textbook and no one comment on this so, I thought that this is physics 101 that I just don't get. As my exams are getting closer I got my golden answer: that's how it works😂👍
You know what? We had our first cardiology class in med School (5th year) and I really needed someone to explain me the ECG. This video is perfect and specific. I'm fed up on books spending pages over pages and in the end failing to explain things. Wish our professors used videos as yours in our educational process.
This is the clearest I have ever had ECGs explained to me, through nursing school, and then grad school! I needed to know that electrodes and leads are two different things, though they are related. Now I know what each lead means, and which part of the heart it is recording! Thank you!
Thank you so much, Lovena! If you’re interested in getting early access to our videos check us out on Facebook: bit.ly/2u35D6J, or, even better, get exclusive access to dozens of our unreleased videos now at our website: bit.ly/2ut5ZEJ.
It is a lot! We hope you found the video useful! If you haven't yet checked out our educational platform we have a bunch of tools that we think you'd like. These include unreleased videos, tens of thousands of flashcards and multiple-choice practice questions, study workspaces, and daily exam schedule organizers to help you learn medicine. You can sign up for a free trial of Osmosis Prime here: bit.ly/2ut5ZEJ
Absolutely fantastic explanation, cheers! Only small suggestion would be to mention, that depolarisation & repolarisation of the myocard occur in opposite directions ultimately leading to a positive curve response in both cases on the ECG, which is why the P- & T-waves are usually both depicted as positive. Failure to mention this might have people confused when trying to interpret an actual ECG. Nevertheless an excellent video for the basics!
Just wow!!! I have no word to write. It was so clearly and magnificently explained. I went to medical College and never understood EKG in depth.. you have beautifully explained EKG...well done..love it !! ❤️ Thank you so much🙏🙏
Generally i know ECG but it took me much time to understand when I was a student. This video is showing clearly basics physiology of heart and i believe it will help students.
Just signed up to the free trial to watch the rest. Very clear and helpful. I was looking at the oxford handbook scratching my head, but this explained it all under an hour.
Not all students can afford the money for a prime subscriber 😞. Although the money could be not that much for a US student, please understand that it's too much to afford for a student coming from a third-world country like me. I understand how the world works and that you need the money but you were doing a really great humanitarian job when you were sharing educational materials with every student in the world. Please reconsider holding the wonderful educational material by osmosis in exchange of money.
Hi Moaz, thanks for the feedback. Many of us are involved with Osmosis because we produce three educational videos a week and publish them, for free, on UA-cam and Wikipedia. We think it's a great cause, but these videos aren't cheap or easy to make and all of us involved need to make a living--this is full-time work for several people. So we have to make money as an organization to keep producing videos. That said, if you want to see these videos for free you can sign up for a free trial at bit.ly/2ut5ZEJ. We also give membership time away for free with referrals. I hope this helps!
Thank you for your kind reply. I can totally understand you and I wish you nothing but good for all the lovely work you have done so far and still doing. Do I wish that any human can have access to studying material anywhere and anytime?! Sure, who doesn't! ... Is this the way life works?! Unfortunately no, hopefully, one day it will! I still love you.
GREAT video here! I LOVE the Osmosis content! I'm making medical topic videos because I found you guys so inspiring, including a new EKG series soon. Keep up the great work, Osmosis!
I am studying Biomedical Engineering (3rd year - final year of bachelor) and this is still the best explanation of ECG I have ever seen. For understanding basic principal, its ideal. Thank you much for your hard work! U are saving my ass through my studies!
listened to my lecturer for 50 minutes in class and another 50 minutes of the lecture recording, but understood nothing; watched this 8.5 minute video and now I know how ECG works. YAY!!!!!!!! Thank you so so very much!!!!
Hallo I am from Indonesia I want to riview this video: EKG secara khusus menunjukkan bagaimana gelombang depolarisasi setiap detakan jantung yang merupakan gelombang mutan positif. Dan tampilanya bergantung pada rangkaian elektroda yang digunakan. Sel elektroda ini disebut lead 2 misalnya dengan satu elektroda di tengah kanan dan dikaki kiri, pada dasarnya saat gelombang bergerak ke arah elektroda kaki kiri akan mendapatkan defleksi positif, seperti defleksi positif besar ini sesuai dengan gelombang yang bergerak ke bawah vertikal kiri dan kanan. Pada saat seseorang beristirahat sel akan bermuatan relatif negatif dibandingkan diluar lingkungan dan ketika mereka mendepolarisasi, sel-sel menjadi bermuatan positif, meninggalkan muatan sedikit negatif diluar lingkungan. Elektroda akan mendeteksi muatan yang ada diluar sel jika muatan yang berada diluar sel cenderung bermuatan positif maka EKG akan menunjukkan tracking tersebut sebagai defleksi positif-semakin besar dipol semakin besar defleksi sehingga akan menunjukkan gambar mengarah ke atas. Sebliknya jika muatan diluar sel cenderung negatif maka akan terjadi depolarisasi dan gambar akan menunjukkan garis lurus. Thank You
Since my apprenticeship I could not understand indetail of basics but after watching this no need to again revise for ECG basics I gone through many PDFs but this video made me to lead in the easiest way ever thank u for ur detailed discription on basics ....
Isn't there a dipole on the outer side of the cell membrane that cancels out the one on the inside and the leads are also placed on the surface of the body, so it is not like leads are facing the interior of the cell, in short does ecg measure these diople strength or potential differences between leads?? Please do answer
It's really scary to think so many people in the medical field didn't understand EKG before this video. Please for the sake of our patients don't wait to become familiar with this tool. When used properly it can save heart tissue, when used poorly it can decrease a patient's quality of life and may result in death waiting for that troponin from the lab. The use of EKG can also show a right sided infarct. Learn about it, Google it please. I've had firefighters tell me the STEMI they see is residual from past MI, I look and guess what this guy is having a MI in front of us. Yep, just because you're big and it can sound like you have some kind of authority doesn't mean you know anything. These are amazing tools and I am very grateful that people are watching this and attempting to understand the content. Just know, this is only the tip of the iceberg when learning how to get the most out of the EKG. May your future be bright so our patients live longer and quality lives.
Facts that alot of med students are not good in physics and vectors make it difficult to understand or else the concepts are quite basic and this is probably the best explanation of ECG in my opinion.
We love hearing that, Cadzon L! Did you know that if you like & review us on Facebook then you’ll get access to our videos a day before they’re published on UA-cam? Check it out here: bit.ly/2u35D6J
I've watched numerous explanations of this topic now and this is by far and away the best. Some people may not like it because it is complex, but simplifying the explanation would only lead to a fundamental misunderstanding.
Hi Mohammed, thanks for the interest! Please check out our website. We have seven more videos on ECG and much, much, more. This includes all of our other unreleased videos, tens of thousands of flashcards and multiple-choice practice questions, study workspaces, and daily exam schedule organizers to help you learn medicine. Check it out here: bit.ly/2xocnyc
This is probably all here. First find p-wave, or something else if you prefer, to calm down ja get good starting vibes. So p waves found maybe on chest leads, it can be sinusoidal rythm. If ps strange or missing, can be flutter or chaotic activity that is prechamberic vibration or what was it called. Quite common among adolescents and can link to cardiac failures of differen kinds, new york heart associations scale 1-4. 1 normal, 2 mild physical performance lacking, 3 maybe able to climb one floor but not more, 4 nearly unable to perform physically. pq time longer than 0,2 seconds; that is AV1-block. AV3 is complete block of atrial-ventricular-conducting. AV2 can be Mobitz or Wenckebach, on other there is progressive elongation of conducting delay, then complete blockade, other don't remember. There is those hint things on scaler :). So p waves can contain strain differences too, rare. ps checked, and pq-time. Then inspect qrs complex. Time under 0,12 seconds normal, wider can connect to RBBB, pRBBB, LBBB, pLBBB. These can be due lack of blood stream or inflammation or sarcoidosis, amyloidosis, rheumatic diseases, etc. Block of arterial flow due thrombosis, or emboli are important. Due partial or complete necrosis and fibrosis can make permanent changes, or can be selfcorrected. Strange complex is usually ventricular extra beat, can be also if strange complex constantly due non-sinusoidal pacing source. Abnormal high voltage can be caused by cardiac muscle oversizing, most usual cause is unmedicated elevated blood pressure or anabolic hormones or such misuse. ST-level raise or abnormality can be caused by insufficient bloodstream to muscle, heart attack or overloading usually. T-wave abnormality can be connected to heart attack, or potassium level abnormality. Quite same, because there is potassium leakage in necrotizing cardiac muscle cell loss. QTc time abnormality can make heart vulnerable to rhythm abnormalities, can be linked to medication. Delta wave before QRS can be connected to Wolf-Parkinson-White conducting abnormality, makes vulnerable to fatal arrythmias. Treated with disconnecting abnormal conduction track. Ectopic rhythms can sometimes be started from Trunckus pulmonalis area, must be disconnected. Bradycardias are usually connected to AV-problems, pacemaker and distrombosizing medication, NOAC or warfarin (anti-K-vitamin multi blockade of clotting cascade). Atrial fibrillation can cause changing pulse and occasionally fast bursts, can cause embolus (especially in brane area very bad, MCA due anatomy most common). This is something to start with, correlate when misinformation happens. Happy about it.
In the 90-s - US tried to bring humanitarian aid to Kyrgyzstan in terms of medications. But they airlifted medications that were about to expire in two months instead of ones that would actually help the Kyrgyz people. I will never forget this backhanded slap to this day. This kind of "help" made me realize that US and whoever stands behind them only want to increase their bottom line at the expense of everyone else. I think we know who I'm talking about.
I think that you made a mistake when you said that "When the wave moves perpendicular to the electrode it produces no deflection at all". The truth is that It produces what's called a "Biphasic Wave" where the wave has both equally positive and negative deflection. And it's very useful to locate the lead that has this characteristic so you know the heart axis. Thank you for the good interpretation.
No doubt you explained very well! But it will be helpful for me if you make a video in which like diseased state of heart is explained on ECG. Like in cardiac arrhythmias the charge of cell and its representation on ecg
I have two questions: 1- so all the leads are catching the waves coming from ventricles right? Because you just mentioned them as inferior, lateral and anterior related to ventricle and not atrium. So this is why in avR QRS wave is upside down and P and T waves are normal because it is just catching the ventricular waves? 2- where is considered as negative origin to chest leads? Where is negative part of voltmeter is connected to then?
God bless you!!! I swear your work gives me such a better and deeper understanding of whatever material I may be learning. Your work is GREATLY appreciated!!
I was this close to dropping out of med school cuz I couldn't understand ECGs. This 8min video is wayyyyy more helpful than the 4hr lecture i had to endure on the basics of understanding an ECG. I think I'm supposed to thank you for saving me, but I'm not sure if I won't regret dropping out sooner so ;)
You are doing absolutely phenomenal work... I wish you cover topics of embryology....Your simplifying of concept will help us a lot....thank you and keep up the good work...
Thanks for watching Krista! If you’re interested in getting early access to our videos check us out on Facebook: bit.ly/2u35D6J, or, even better, get exclusive access to dozens of our unreleased videos, including 7 more videos on ECG, now at our website: bit.ly/2xocnyc
It's been 3 years since I was introduced to ECGs, and I've been since then trying to wrap my head around this very concept.
Only 8 minutes of quality content did what textbooks could not in years.
Superb video, thank you!!!
Uzoaku Amadi ,,,imagine while reading ,,that will help u understand more
Likewise, and makes me wonder if I am an idiot or my teachers were unable to go back to the extreme basics this video provides... (possibly a mix of both)
Yes! Same here!
He's NOT explaining anything ! He's simply stating a loooong string of facts one after the other. The reason this vid helped u is purely cause it helped fill in the blanks u had learned earlier. And i presume u didn't apply yourself well before.
Same today i spent all day for understanding something of this topic, but i gained few few concepts, only 8 minutes has solved it immediately!!!
Honestly I study ECGs every year and then forget everything by the next year... it sucks
Same. Smh
Preach
االظاكفنففعنتي!ووووولعبسلبب سهضان$لىةياي
I can relate!!
Same. I learned it for internal medicine pretty well, and now I have to relearn it from scratch in my final year
I guess most of you guys are in med school. I legit don't understand most of what he said but explanation was great for the code I'm writing that represents this for my mechanical engineering class. Good luck future doctors
Rofiq El Imagine this video being too simple... that’s med school 😂
@Rofiq El I think if you look at Action Potentials to understand what is being said about depolarisation and repolarisation then it should make better sense.
As an engineer could you explain what does it mean that the dipole direction is towards the positive from outside what rule is this taken from?
I used to love physics but this whole ECG thing doesn't make sense to me.
(Just to make sure that I'm getting the video right:
1- The dipole moves toward the positive on outside that's why the vector at first points toward the positive electrode hence giving a positive deflection
2- However, at repolarization the ions were reversed that's why the vector was reversed and since the charges are moving away from the positive electrode the deflection was in the negative direction.)
@@hebaelnabawy8871 I have just the same question in mind. , I see I am not alone , because I have started to think I am the only one who has silly doubts .
@@ayanmajumder4144 ikr I have seen approximately 10 videos beside my textbook and no one comment on this so, I thought that this is physics 101 that I just don't get.
As my exams are getting closer I got my golden answer: that's how it works😂👍
You know what? We had our first cardiology class in med School (5th year) and I really needed someone to explain me the ECG. This video is perfect and specific. I'm fed up on books spending pages over pages and in the end failing to explain things. Wish our professors used videos as yours in our educational process.
Wow, we're glad that our video was able to help with your studies! 🥰❤️🙏🏼
This is the clearest I have ever had ECGs explained to me, through nursing school, and then grad school! I needed to know that electrodes and leads are two different things, though they are related. Now I know what each lead means, and which part of the heart it is recording! Thank you!
I am understanding ok thanks
Osmosis, you guys are truly doing god's work. Thank you.
Thank you so much, Lovena! If you’re interested in getting early access to our videos check us out on Facebook: bit.ly/2u35D6J, or, even better, get exclusive access to dozens of our unreleased videos now at our website: bit.ly/2ut5ZEJ.
I’m an RN working in a cardiac stress lab trying to gain as much understanding about cardiac electrical currents as possible. Thank you!!!
We're glad to help! ❤️
You guys did what a 2000 pages books couldn’t do! And only in 8:35 mins.
Nicely done.
My thought exactly!
I understand nothing
i was about to comment the exact same thing lol
Same here
In the next future, if i understand it i will give u a kick. Lol
I started yawning within 2 mins of the video lol*monotone*
me too
I'm shook at how much physics actually goes into ECG's.
It is a lot! We hope you found the video useful! If you haven't yet checked out our educational platform we have a bunch of tools that we think you'd like. These include unreleased videos, tens of thousands of flashcards and multiple-choice practice questions, study workspaces, and daily exam schedule organizers to help you learn medicine. You can sign up for a free trial of Osmosis Prime here: bit.ly/2ut5ZEJ
You're "shook"?!
@@Abrikosmanden yes, as in "shook up"
@@DubSalvation Yeah, that's not a thing. You might be shaken up, not shook up. If someone shook you, you'd be shaken, not shook.
How much Shook would a shook shuck shuck If a shook up could shuck shook?
Absolutely fantastic explanation, cheers!
Only small suggestion would be to mention, that depolarisation & repolarisation of the myocard occur in opposite directions ultimately leading to a positive curve response in both cases on the ECG, which is why the P- & T-waves are usually both depicted as positive.
Failure to mention this might have people confused when trying to interpret an actual ECG.
Nevertheless an excellent video for the basics!
Very good point! You saved me a headache and some googling tonight. Thanks!
I'm dropping out of nursing after this video. Thank you osmosis.
Huh why? ?
Ik I'm a little late
@@maramz3146 no no I am curious too
.
persist, overcome
I watched 1 minute of this video then immediately went to Patreon, great job thank you!
This is so high yield yet so simply explained. Y'all are amazing.
Just pause the video to write that u did this incredibly, i can now understand those cvs chapters
This is the best introduction to ECG EVER
Aishwarya Ghonge indian yo buddy
I have asked people to explain how ECGs work for 5 years and every time they say what they do but never how they do it, I'm so happy that I know now!
Just wow!!! I have no word to write. It was so clearly and magnificently explained. I went to medical College and never understood EKG in depth.. you have beautifully explained EKG...well done..love it !! ❤️ Thank you so much🙏🙏
Glad to help, Sangita! 🥰
I guess this is the only video on the internet that clearly explains the basics of ecg. Hope to see more of the ecg videos. Great work guys.
Thanks for the kind words! You can check out 7 more of them now on our website: bit.ly/2xocnyc !
Generally i know ECG but it took me much time to understand when I was a student. This video is showing clearly basics physiology of heart and i believe it will help students.
That's the goal, Pitoleczek! Thanks for watching! If you’re interested in getting early access to our videos check us out on Facebook: bit.ly/2u35D6J!
Just signed up to the free trial to watch the rest. Very clear and helpful. I was looking at the oxford handbook scratching my head, but this explained it all under an hour.
Under 10 minutes
Not all students can afford the money for a prime subscriber 😞. Although the money could be not that much for a US student, please understand that it's too much to afford for a student coming from a third-world country like me. I understand how the world works and that you need the money but you were doing a really great humanitarian job when you were sharing educational materials with every student in the world. Please reconsider holding the wonderful educational material by osmosis in exchange of money.
Hi Moaz, thanks for the feedback. Many of us are involved with Osmosis because we produce three educational videos a week and publish them, for free, on UA-cam and Wikipedia. We think it's a great cause, but these videos aren't cheap or easy to make and all of us involved need to make a living--this is full-time work for several people. So we have to make money as an organization to keep producing videos. That said, if you want to see these videos for free you can sign up for a free trial at bit.ly/2ut5ZEJ. We also give membership time away for free with referrals. I hope this helps!
Thank you for your kind reply. I can totally understand you and I wish you nothing but good for all the lovely work you have done so far and still doing. Do I wish that any human can have access to studying material anywhere and anytime?! Sure, who doesn't! ... Is this the way life works?! Unfortunately no, hopefully, one day it will! I still love you.
Tamil songs
Don't give up... money is a big thing here too!!
Yes please reduce the amount for subscription
GREAT video here! I LOVE the Osmosis content! I'm making medical topic videos because I found you guys so inspiring, including a new EKG series soon. Keep up the great work, Osmosis!
Best ECG basics explanation I've seen so far, Osmosis always the best .. love u guys
You guys explained this concept waayyyy better than my nursing instructor did. Thank you so much for your help!
Glad to help, Sarah! 😊
This is the clearest and most detailed explanation of an ECG and still I understand nothing.
I am studying Biomedical Engineering (3rd year - final year of bachelor) and this is still the best explanation of ECG I have ever seen. For understanding basic principal, its ideal. Thank you much for your hard work! U are saving my ass through my studies!
Thank you for making us part of your medical education! 🥰❤️🙏🏼
One of the best and clearest videos about the 12-L. Thank you!
listened to my lecturer for 50 minutes in class and another 50 minutes of the lecture recording, but understood nothing; watched this 8.5 minute video and now I know how ECG works. YAY!!!!!!!!
Thank you so so very much!!!!
Hope your lecturer won't see this
The human population should be proud of such potential 👏👏 greetings 🙏
i watched this as a student guys, now i am rewatching it for the beauty and knowledge of it, students do not joke with this video
Thanks so much! This explains it better than my EKG book! Took this course back in 2005 but your video helped me recap. I appreciate it
This is a good explanation for people who like math, and it helped me finally sum up everything I learned over the past two days.
Hallo I am from Indonesia I want to riview this video:
EKG secara khusus menunjukkan bagaimana gelombang depolarisasi setiap detakan jantung yang merupakan gelombang mutan positif. Dan tampilanya bergantung pada rangkaian elektroda yang digunakan. Sel elektroda ini disebut lead 2 misalnya dengan satu elektroda di tengah kanan dan dikaki kiri, pada dasarnya saat gelombang bergerak ke arah elektroda kaki kiri akan mendapatkan defleksi positif, seperti defleksi positif besar ini sesuai dengan gelombang yang bergerak ke bawah vertikal kiri dan kanan. Pada saat seseorang beristirahat sel akan bermuatan relatif negatif dibandingkan diluar lingkungan dan ketika mereka mendepolarisasi, sel-sel menjadi bermuatan positif, meninggalkan muatan sedikit negatif diluar lingkungan. Elektroda akan mendeteksi muatan yang ada diluar sel jika muatan yang berada diluar sel cenderung bermuatan positif maka EKG akan menunjukkan tracking tersebut sebagai defleksi positif-semakin besar dipol semakin besar defleksi sehingga akan menunjukkan gambar mengarah ke atas. Sebliknya jika muatan diluar sel cenderung negatif maka akan terjadi depolarisasi dan gambar akan menunjukkan garis lurus.
Thank You
Platforms like these are what makes UA-cam so effin great! Thank you for the information
Thank you! We're flattered! 🙏🏼 ❤️ 😊
The explanation of how the ekg writings in the beginning with the planes and polarity was super awesome
Since my apprenticeship I could not understand indetail of basics but after watching this no need to again revise for ECG basics I gone through many PDFs but this video made me to lead in the easiest way ever thank u for ur detailed discription on basics ....
Glad to help! 💕
This is the best explanation of EKG leads I’ve ever heard. Showing this to the nurses on my ICU for sure.
Thank you and we hope this helps them as well! 😊
A subject every teacher is determined to make incomprehensible.
YOU ARE GOLD BROTHER
Isn't there a dipole on the outer side of the cell membrane that cancels out the one on the inside and the leads are also placed on the surface of the body, so it is not like leads are facing the interior of the cell, in short does ecg measure these diople strength or potential differences between leads??
Please do answer
How happy I was after my high school that I no longer have to study these vectors and physics. 🤦♀️
And now this🙄🤦♀️
WHY didn't I discover this channel earlier????? THIS IS AMAZING
This was so crystal clear
I was having lot of trouble understanding it but now i feel more confident
Thanks for the video
Happy to help, Barbie! 😊
The best channel for anything and everything related to medical knowledge.
Thanks, Priyanshu! 😊
It's really scary to think so many people in the medical field didn't understand EKG before this video. Please for the sake of our patients don't wait to become familiar with this tool. When used properly it can save heart tissue, when used poorly it can decrease a patient's quality of life and may result in death waiting for that troponin from the lab. The use of EKG can also show a right sided infarct. Learn about it, Google it please. I've had firefighters tell me the STEMI they see is residual from past MI, I look and guess what this guy is having a MI in front of us. Yep, just because you're big and it can sound like you have some kind of authority doesn't mean you know anything. These are amazing tools and I am very grateful that people are watching this and attempting to understand the content. Just know, this is only the tip of the iceberg when learning how to get the most out of the EKG. May your future be bright so our patients live longer and quality lives.
One of the best videos about ecg basics on internet 👏🏼😍 thanks a lot.
Wow, thanks! 🙏🏼
Wow. This gave me better understanding, been looking on youtube for 3 hours for this kind of info, thank you
We're glad that this helped! 🥰❤️🙏🏼
Great video on what ECG (EKG) measures, if possible add one minute to explain what to watch out using different equipment.
I couldn’t understand in class and physiology textbook, now I finally understand! Thank you~ Love from Taiwan
Facts that alot of med students are not good in physics and vectors make it difficult to understand or else the concepts are quite basic and this is probably the best explanation of ECG in my opinion.
What a fabulous overview of the basics! Exactly what I needed!
Glad this helps! 😊
This is Sal Khan quality of teaching :)
Limb leads: I, II, III (bipolar); aVR, aVL, aVF (unipolar)
Chest leads: V1-V6 (precordial)
I will suggest dr Najeeb lecture to understand ecg in detail . Other than that this video is best for quick review
This is the only channel on UA-cam I can confidently hit like on every video without seeing it :D
We love hearing that, Cadzon L! Did you know that if you like & review us on Facebook then you’ll get access to our videos a day before they’re published on UA-cam? Check it out here: bit.ly/2u35D6J
osmosis realy changed my life...i dont know how to express ma gratitude
I've watched numerous explanations of this topic now and this is by far and away the best. Some people may not like it because it is complex, but simplifying the explanation would only lead to a fundamental misunderstanding.
Thank you! 🥰❤️🙏🏼
Please please please continue I need to learn more about ECG, this was a great video I learned too much from it.
can i pay by indian debit card?
Hi Mohammed, thanks for the interest! Please check out our website. We have seven more videos on ECG and much, much, more. This includes all of our other unreleased videos, tens of thousands of flashcards and multiple-choice practice questions, study workspaces, and daily exam schedule organizers to help you learn medicine. Check it out here: bit.ly/2xocnyc
I love how this video only covers the basics. Yes. Just. The. Basics.
This is probably all here. First find p-wave, or something else if you prefer, to calm down ja get good starting vibes. So p waves found maybe on chest leads, it can be sinusoidal rythm. If ps strange or missing, can be flutter or chaotic activity that is prechamberic vibration or what was it called. Quite common among adolescents and can link to cardiac failures of differen kinds, new york heart associations scale 1-4. 1 normal, 2 mild physical performance lacking, 3 maybe able to climb one floor but not more, 4 nearly unable to perform physically. pq time longer than 0,2 seconds; that is AV1-block. AV3 is complete block of atrial-ventricular-conducting. AV2 can be Mobitz or Wenckebach, on other there is progressive elongation of conducting delay, then complete blockade, other don't remember. There is those hint things on scaler :). So p waves can contain strain differences too, rare. ps checked, and pq-time. Then inspect qrs complex. Time under 0,12 seconds normal, wider can connect to RBBB, pRBBB, LBBB, pLBBB. These can be due lack of blood stream or inflammation or sarcoidosis, amyloidosis, rheumatic diseases, etc. Block of arterial flow due thrombosis, or emboli are important. Due partial or complete necrosis and fibrosis can make permanent changes, or can be selfcorrected. Strange complex is usually ventricular extra beat, can be also if strange complex constantly due non-sinusoidal pacing source. Abnormal high voltage can be caused by cardiac muscle oversizing, most usual cause is unmedicated elevated blood pressure or anabolic hormones or such misuse. ST-level raise or abnormality can be caused by insufficient bloodstream to muscle, heart attack or overloading usually. T-wave abnormality can be connected to heart attack, or potassium level abnormality. Quite same, because there is potassium leakage in necrotizing cardiac muscle cell loss. QTc time abnormality can make heart vulnerable to rhythm abnormalities, can be linked to medication. Delta wave before QRS can be connected to Wolf-Parkinson-White conducting abnormality, makes vulnerable to fatal arrythmias. Treated with disconnecting abnormal conduction track. Ectopic rhythms can sometimes be started from Trunckus pulmonalis area, must be disconnected. Bradycardias are usually connected to AV-problems, pacemaker and distrombosizing medication, NOAC or warfarin (anti-K-vitamin multi blockade of clotting cascade). Atrial fibrillation can cause changing pulse and occasionally fast bursts, can cause embolus (especially in brane area very bad, MCA due anatomy most common).
This is something to start with, correlate when misinformation happens. Happy about it.
Willl not forget this concept in my entire life
Literally could not understand any of this before this video! THANK YOU!!!
This video is fantastic! Makes it easier to remember the basics in ECG! thanks a lot!
Glad you think so! 😊
thnx for helping me with my brevet finals
in only 8 min i found the key to ekg thank u soooo much for helping us
Awesome! We're always glad to help! 🙌🏼
In the 90-s - US tried to bring humanitarian aid to Kyrgyzstan in terms of medications. But they airlifted medications that were about to expire in two months instead of ones that would actually help the Kyrgyz people. I will never forget this backhanded slap to this day. This kind of "help" made me realize that US and whoever stands behind them only want to increase their bottom line at the expense of everyone else.
I think we know who I'm talking about.
I think that you made a mistake when you said that "When the wave moves perpendicular to the electrode it produces no deflection at all". The truth is that It produces what's called a "Biphasic Wave" where the wave has both equally positive and negative deflection. And it's very useful to locate the lead that has this characteristic so you know the heart axis.
Thank you for the good interpretation.
Plzz make many more physiology concepts videos!!
Thanks for making all these videos very helpful😃
My best medical source everrrrrrr
Thank you! ❤️
Osmosis is really a great learning platform. - eBio Education
ECG is complicated, but you made it simple. Thank you from the bottom of my frontal lobe.
Great to hear that, Mohamed! Thank you! 🫀❤️💕
OMG I love you! I'm pre-med student and this video helped me sooooo much! Thanks 👍
Woohoo! Glad it helped, Tanishka! 🙌🏼 💕 ✨
No doubt you explained very well! But it will be helpful for me if you make a video in which like diseased state of heart is explained on ECG. Like in cardiac arrhythmias the charge of cell and its representation on ecg
Awesome and beautiful video. May I know, what is the purpose of aVR? I don't remember seeing explanation on this lead.
I have two questions:
1- so all the leads are catching the waves coming from ventricles right? Because you just mentioned them as inferior, lateral and anterior related to ventricle and not atrium. So this is why in avR QRS wave is upside down and P and T waves are normal because it is just catching the ventricular waves?
2- where is considered as negative origin to chest leads? Where is negative part of voltmeter is connected to then?
What do you mean when you said the “bigger the dipole” that means bigger potencial difference or bigger the lenght that is being studied?
Nice to see this video after rote learning
It makes to understand the things that I read in the book clearly
For people getting confused, i would suggest to skip to 3:42. The information before mixed with the information after can be confusing
My professor suggested this and WOW! Great job.
God bless you!!! I swear your work gives me such a better and deeper understanding of whatever material I may be learning. Your work is GREATLY appreciated!!
Great and unique explanation... 👍👍👍👍👍
the best explanation of ECG basics i have ever seen 👍
Thank you so much, Mina! If you want more videos on the topic we have a complete 8-part series here: bit.ly/2xocnyc. Check us out!
Best ECG lead class ever
Thanks! 😊
This ia a really good video but only to review..thank you osmosis
just how did u explain this in such easy way literally the best video abt ECG.
Wow, thanks! 💖
Its begining to make sense to me! Thank you!!!!!
I was this close to dropping out of med school cuz I couldn't understand ECGs. This 8min video is wayyyyy more helpful than the 4hr lecture i had to endure on the basics of understanding an ECG. I think I'm supposed to thank you for saving me, but I'm not sure if I won't regret dropping out sooner so ;)
Very exquisite explanation and animation. Well done.
This is great! ECG is essential! Nothing better than Osmosis
Thanks for the kind words, Kaguro1! If you'd like to see our complete 8-video series on ECG check us out on our website: bit.ly/2xocnyc !
Isn’t it lead I have negative pole on the right arm and postive pole on left arm causing the vector goes to the left? 5:19
Thank you so much for the video, it's really helpful and easy to understand.
Thanks for the informative video, I hope the Electrocardiography series are free !
Wished you guys upload the rest of the content here
You are doing absolutely phenomenal work... I wish you cover topics of embryology....Your simplifying of concept will help us a lot....thank you and keep up the good work...
You're in luck! We are covering embryology. Check it out! bit.ly/2ut5ZEJ
TYSM FOR MAKING DIZ VID,I finally understand
Glad it helped! 🙌🏼
U explained it in a simple way ...thank u a lot
Most welcome! 😊
Very good video. I liked it very much. I understand a lot. Hope more series of it i could watch
Thank you! ❤️
Finallyyy😅 thank you so much🤗
Thanks for watching Krista! If you’re interested in getting early access to our videos check us out on Facebook: bit.ly/2u35D6J, or, even better, get exclusive access to dozens of our unreleased videos, including 7 more videos on ECG, now at our website: bit.ly/2xocnyc
Very well done. Visually and information-wise!