Heart Blocks Explained - First, Second, Third Degree and Bundle Branch on ECG
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- Опубликовано: 30 сен 2024
- Heart blocks illustrated clearly with Dr. Seheult. See the other videos in this ECG Interpretation series at: www.medcram.co...
This video includes 1st degree heart blocks, 2nd degree heart blocks (Mobitz type 1 or wenckebach, mobitz type 2), 3rd degree heart blocks (complete heart block), hemiblocks, bundle branch blocks, 2:1 heart block, and more. Also, learn the pathophysiology of heart blocks as they relate to the SA node, AV node, ventricles, and atrium.
See the complete ECG Interpretation course. Confidently interpret EKGs and EKG rhythms in a systematic way, including:
- The physiology of the heart
- EKG leads and vectors
- Leads and EKG paper
- The ECG tracing
- EKG waves, complexes, and intervals (p waves, QRS complexes, PR interval etc.)
- Axis on EKG and precordial leads
- The autonomic nervous system and the heart
- Heart rate and automaticity on the ECG
- The R to R interval
- Rhythm, arrhythmias, and escape rhythms,
- Premature beats and pauses on EKG
- Bigeminy, trigeminy, and tachyarrhythmias
- V-tach and torsades de points
- Atrial and ventricular flutter
- Atrial fibrillation and ventricular fibrillation on ECG
- Heart blocks and escape rhythms (1st, 2nd, and 3rd degree heart block)
- Bundle branch blocks, hemiblocks, and fascicular blocks
- Hypertrophy (LVH) and atrial enlargement
- COPD, PE, Hyperkalemia, Digoxin and the EKG
- How to systematically read an EKG (and what a normal ECG looks like)
- Many practice EKG (that Dr. Seheult interprets step by step)
- EKG quizzes follow each video.
This video is part of the "MedCram Remastered" series: A video we've re-edited & sped up to make learning even more efficient.
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Speaker: Roger Seheult, MD
Co-Founder of MedCram.com
Clinical and Exam Preparation Instructor
Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine.
MedCram = More understanding in less time
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Thanks for watching and subscribing. See the rest of the ECG video series at www.medcram.com/courses/ekg-ecg-interpretation-explained-clearly
I can't seem to find the video on 3rd degree heart block....
The explanation is phenomenal, thank you for that.
But the title of the video and the description is extremely misleading. This video DOES NOT cover 3rd degree AV blocks, BBB, or hemiblocks.
Why do you only answer comments that thank you for your lecture?
Helps you a lot with 1 and 2 blocks, 3 and other missing though. Very interesting, thanks for sharing.
I do not know why am I so dumb. It takes me time to understand a particular thing or concept. I am feeling so down,discouraged and upset.
Thank you very much for this lecture. You explain concepts so well. I'm watching this on loop as I prepare for the CVRN-BC exam
Glad it was helpful!
I am 45 years old male, having bifasicular block since last 6 years, having no syncopy ever since, plz give me suggestions so that I cannot need pacer in future
Where is video on third degree block?
Hello I know this is a little old but I need some reassurance. I'm a 37 year old female and out of nowhere 3 days ago I ended up being taken by ambulance to hospital. I had a really bad turn out of the blue. I went dizzy, hot, pale, my heart was racing, I was lethargic, my speech was drowsy and I felt drowsy, I had a weird sensation in my face and neck and generally felt awful. I had an ECG on the way to hospital & it turns out I had a left bunch branch block. As I understand it usually blocks don't present themselves with symptoms, and if they do it suggests an underlying heart condition. I'm also aware it's more serious to get these blocks on the left but not so serious in the right. I just want to know can blocks by themselves kill you? I have such bad anxiety about this. I'm scared its going to happen again. I have a heart scan soon but I just need some reassurance that I'm not in danger. Thank you.
Compared to other tutorials, I find that EXTREMELY helpful because of the way it is taught here.
Hi sir.. in ecg report came. Incomplete right bundle branch block. Is that dangerous... pls reply soon
Has anyone ever come across only 1 PR lengthening then a missed QRS? Mobitz 1 or 2? Aware mobitz 1 is usually multiple PR lengthenings before the missed QRS and Mobitz 2 is zero lengthenings prior so it doesn’t seem to fit into either? Happens to me several times every night when sleeping but ECG is neat all day long, scared this could be Mobitz 2 and I’m not on a pacemaker though!
I dont say this often byut you explain phenomenally!!
Wow, your lectures are really informative. They really encourage me to make more videos for Medical students on my channel. Def subscribing
Great in depth video! I learned a lot. Thabk you 👍🔥
You are awesome. Explained in a way that was not taught in school.
Sir, how does the valsalva increase the cycles number??
Thanks for the video it's incredibly helpful. Only thing I was confused about .... @10:47 I think you meant PRs are becoming longer in length as opposed to QRSs ? Or am I wrong?
sherbetstraw yes I believe you’re right. The PRi gets longer.
Very good presentation. Watching this feeling concerned here. Last week I had a high resting heart rate that didn’t settle down for a few hours and for some time was in the 125-145 bpm range. I saw my doctor today and was sent for an EKG. Result was just posted online, stating type 1 AV block and otherwise normal EKG. I’ve had a crazy stressful 6 months at work, with working basically 12 hours/day for the last 3 months. All very fast paced corporate environment. Been eating poorly and no exercise in 3 months. I’m sure my doctor will call me in the morning (and had already ordered a 24-hour holter), but have some questions: (I am 46F) 1) Is this something that can go away? 2) How is it treated? 3) Can this be caused by stress? 4) Is there an actual blockage that would require a stent? 5) Can I continue exercising? I love to go to the mountains to hike and kayak, but those are areas with no cell phone reception. Would this make me have to stay nearer the city? 6) What percentage of 1st degree AV blocks progress to become worse? EKG results: HR 53, P axis 38 degrees, QRS axis 21 degrees, T axis 17 degrees, QT 485 ms, QTC 473 ms, QTD no value, QRS complexes 90 ms, PR 0 ms, PQ 211 ms, P 102 ms.
👍👍. thanks, very well done!
I just got diagnosed with Wenckebach. My doctor couldn't tell me things like if this will progress to Third Degree Heart Block, if I'll need a pacemaker, or if if this will shorten my lifespan. I'm 28.
So thank you for explaining this. I feel better the more I hear that this condition doesn't usually worsen.
I'm still seeing a cardiologist, but it could be a while.
Very helpful and informative. Thanks a lot.
Doctor please questions I just had open heart surgery for aorta and valve reconstruction. it's been a month now I am 41yrs old and I have complication in my heart rate and rhythm so doctor give me medications metoprolol tartrate 75mg a day 25 mg 3x a day. And amiodarone hydrochloride 200mg 2x a day. Lengout 500mcg 2x a day, Eliquis 5mg 2x a day. Please questions how long I be taken this in your opinion and what should I been watching in my self to help to be normal and be stop with medications. Please help. And thank you do much.
I swear ur the most amazing explanation ever , I totally searched a way to understand this by many videos and even by my own academic professor, still couldn't get it except by u , tysm ❤❤❤
This is SO helpful! Thank you so much for sharing your videos. They have saved me many times over.
You’re welcome👍
As simple as it sounded, imagine wraping the 12 lead around the heart to get a sense of where possibly the cardiovascular problem may be!
Came across this video while studying for my EKG practical exam. Was curious about your page and figured out you went to the medical school I currently attend. So cool! Thank you!
Much appreciated your effort.. keep up the greatness✌
Q: Why we cannot see P repolarization wave when QRS complex is dropped? Thank you.
with the SA node block you state there should be no P-wave and then go and point out the P-wave on the EKG i am confused
Brilliant explanation
You the man
Please how can i do the parasympathetic stimulation
Please show 3 rd degree, bundle branch blocks
Earlier i wasn't able to detect the exact heart block now i can even write the type precisely
Could you please share what software do you use to make these videos? The videos are very helpful. Thank you.
why do we do vagal maneuvers in mobitz type 1 although its harmful?
To kill the patient? Haha
I was tought to measure the pq time in stead of pr time.
Thanks so much for sharing. 💔 😉👌🏻
Great video thanks Dr Seheult.
What about incomplete Rbbb
It was the box that did it for me
i am consfused. you said because the PR interval is getting longer as the block in AV gets worse the QRS gets narrowers but then on the ECG exaple you said QRS is normal. please can you help me on this
Normal is narrow.
It means there isn't any widening like in type 2
Use a better pointer so can be seen easier.
where is the next lecture to this one?
Thank you sir,you writting it on my mind clearly
Beautifully explained! Thank you @MedCram-Medical Lectures
Thanks!
good explaination, thanks Doc
Excellent presentation, thank you, 👍👍
That P wave said 😐
Excellent explanation 👌
Great content!
Thank you!
Thank u ♥️
Thank u so much
Great
Useless this is not the process to describe justs by describing with ecg.
Great effort
Good effort
Thank you so much 🙏🏻
Thanks for the comment!
Excellent lecture Dr. Seheult!
Very lucid. Thanks!
Thanks for your feedback
I am not asking for a diagnosis, just some advice. I am 68, 5’11”, workout regularly, eat clean. For the past 15 years or so, a couple of times a week my my heart rate increases from the high forties (resting) to the high 130’s for a few seconds, then stops for about 2 full seconds and resets to the normal rate. Anyone have any idea what, if anything, I should do?
Call your doctor.
taylorforester88 I talked to him a couple of times about it. He said medicare wouldn’t pay for a pacemaker until it got worse. Probable need a new dr. Thanks.
Can you focus on the healing process, what medicines to stay away from ect
Of course theres a paywall. Lost my like
Whether or not u just saved my life idk.
I have kardia device and I'm having pulsating chest pains so u recorded a 6 lead and it went from 4 boxes to a 2 boxes times 3 and back to normal. Not one little box but big boxes.