AV Blocks (1st, 2nd, and 3rd Degree)
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- เผยแพร่เมื่อ 2 ก.ย. 2016
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My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
For educational purposes only; NOT medical or other advice.
Some videos contain mild profanity and hyperbole solely used to assist with memorization. Viewer discretion advised.
Opinions are entirely my own. - วิทยาศาสตร์และเทคโนโลยี
A Heart block Poem to remember AV blocks that you may find useful :)
if the R is far from P, then you have a First Degree.
Longer, longer, longer, drop! Then you have a Wenkeback.
If some P's just don't get through, then you have a Mobitz II.
if P's and Q's just don't agree, then you have a Third Degree.
Thank u, and
*PR interval*
a.first degree- constant, prolonged
b.wencke - keeps on prolonging until
a dropped QRS
c.mobitz ii - constant, normal or prolonged & periodically dropped QRS
this is awesome thank you!
Another way for Wenkebach is " Every time she *Winks* my heart drops a beat"
Thank you for this😩
Mad😂
This is going to be “He” for me😌
Thank you
My instructor explained this to me for 30 minutes and still I didn’t get it. I watched this 9 minute video and now I get it lol.
Most instructors over explain the simplest things. It’s called job security
THANK YOU!!!!!!! I always have so much confusion between differentiating the heart blocks. This is the best explanation I've heard yet.
Thank you👏
Totally agreed 🤗
4 years later still can relate
Best explanation!
You explain everything so well, thank you for taking the time and effort to teach for free on youtube. I'll definitely donate!
Woah this is the simplest way to remember! It only took me 5 years to find you to explain this to me lol!
Hands down the best video I’ve seen on AV blocks. I shared this video with my entire First Aid Squad and they all love it too. Thank you so much!
Simply said! Your lecture/presentation was fantastic and marvelous! Very clear! Just like on that lung sounds lecture, this one was so clear and easy to understand. For all this time, I was so confused about the differences between those Heart blocks no matter how often I studied, but now I got it!! you're an amazing teacher!!!
Excelent work, this is definetely the best explanation of a-v blocks I´ve ever heard
I already thanked "Pima Paramedics" for their video so I can't leave you out. Thanks so much for th video. I was able to figure out AV blocks in about 15 minutes because of your efforts. I'm training to be a paramedic in Ontario and it's definitely not a walk in the park. Your assistance is very much appreciated:)
Goodluck !!
Can't say thank you enough!Showing the constant intervals in 3rd degree helped. Was taught incorrectly that if the P wave "marched through" it was 2nd II.
I am fifth year and this is the first time I comprehend ECG!! really thank you for awesome explanation.
Thank you! I always need to read up on this the day before ACLS, and this video made it simpler than any book I've seen!
I always remember this by saying “longer longer longer drop... then you have a wenkebach.” Similar to what he said but flows a little easier to me. Hope this helps someone!
Errata: Mobitz II is a regular PR-interval followed by a dropped beat
Thanks for correcting this.just about watched this right now and was like WTF
Regular PR is progressive and beat drop
Please pin this to the top of the comments so everyone who watches the video sees it. But great video, very helpful. Thank you!
PR constant and then a drop beat... perhaps there are two types of type 2 2nd degree AV nodal blocks, ie, PR prolonged and constant and or PR constant and not prolonged...
A few more points for quickly identifying AV blocks on exam and in practice:
1st degree AV blocks are usually asymptomatic
2nd degree AV blocks always have an irregular QRS rate, 1st does not without premature beats, 3rd is always regular
Wenkeback -> the QRS is "walking back" from the p wave
Mobitz II does not require PR prolongation
3rd degree AV blocks are usually bradycardic (40-60 for junctional, 20-40 for ventricular)
My algorithm:
Check rate
Check regularity
Check p waves
Thanks. Clear, concise, easy to follow and great mnemonic !
Thank you. I seem to get it now. Never can figure them out from each other. Clear as crystal
Thank you for this. Having just competed this part of my NP studies, I found this video really useful and helpful in consolidating my understanding and learning. Makes much more sense now.
This explanation is out of this world, thanks man.
This video is awesome, thank you! I get stuck between 2nd degree Mobitz II and 3rd degree, this video helps!
dirty medicine , your videos are the best. i cannot thank you enough. i don't comment on you tube channels. but ever since i found your channel, i have watched various systems and i can say you make every concept so easy. God bless you . i just could not resist commenting today.
Thank you so much for simplifying it to this extent! Love this video!
Thank you so much for this. Simple and easy to understand. Hope my memory stands by my side and I don't look like I just had a stroke when someone puts an ECG in front of me.
look who is studying along with u !
lol..mi too
i just fake a seizure. pro tip
Ayaz Arif hahaha! Same 😒😔
I have an ecg cn sm1 pls hlp...m vry tensed
Thank You So much! Best explanation so far on how to memorize and understand the difference.
I am glad you explained it. Thank you soo much
This is phenomenal!!! Thank you!!!
This is explained extremely clearly! Thank you!
Thank you so much! I never understood 3rd degree block until you explained it.
This is the best and simplest explanation I ever heard. Thank you so much!! I really appreciate it because it’s so easy to understand.
That was a great discussion of AV Blocks. Thank you very much
Thank you.. you've made this much easier to remember...
hands down best summary I've come across
Thank you for making these videos!
9 min of pure understanding!! Thank you for explaining this soooo well. Answered all my questions as I was thinking about them 😅
I have a pacemaker due to Bradycardia and Mobitz Type 2. Very interesting video explaining part of my condition. Thank you.
Love it! Doctor you are absolutely fantastic
Very precise explanation! Thanks for your video!
Thank you. You are the best
Thank you!!! Your video has helped a lot!! I was able to pass my test with a 98%!
Thank you so much. I wish you all the food in the fridge.
Thank u , I was struggling with 3rd degree AV Block and now understood. Thanks again.
Great job. Continue producing videos. Sooo useful.
Thank you for this! I just never got a clear understanding of Wenkebach and Mobitz 2...until i saw this video.
TERRIFIC!!!! THANKS👍..... very helpful!!!!
I love you too! + Love the use of your mnemonics!
Excellent definition of the 3 Bradyarrythmia's
perfect!! thanks for always being awesome!!
Well explain, great video. Getting to understand the AV block and drop beat. much thanks,
You are a good teacher! very understandable and good voice for teaching!
such a great teacher you are! thank you
This is a fantastic video and explanation! Thank you!
Good medicine, this was the hardest for me to understand for so long, now very easy. Thank you.
I think this is the best video on heart blocks. Thank you
Thank you for this! You have the best way to explain ever!
Brilliant, this has been so incredibly helpful, thanks
No, you're high yield. From a cath newbie, I thank you. Great resource.
"Yo man, I'm about to drop a beat. Check out my new EKG! That's Wenkebach."
Out now on Soundcloud
THANK YOU SO MUCH!!! Only me and the God knows what struggles I had to go through when the consultant asked me to interpret an ECG! I wish I found ya channel earlier
Oh and is it only me who jumped up from the seat when that sound came up 6:13 ???
sorry no idea what that sound is or how it made it into the video lol!
great description of AV blocks
Well done! It made everything that much more clearer.
Excellent explanation. Thank you.
Man I have watched many vides but yours are unique. I can only say thank you so much!
Helping students like me pass PA school exams. Thank YOU.
Please share with your classmates !
Thanks. This helps me so much to understand in a simple way.
Absolutely fantastic...!!
Incredible video. Can’t thank you enough for these.
This is phenomenal!
Love this!!!
AMAZING EXPLANATION. THANK YOU
such a clear and excellent explanation! thank you!!! :D
Gold material, thanks!
love this video! you explained it perfectly.
Awesome interpretation. super easy. thanks!
Great explanation! Short & concise.
Thank you very much! you made it easy to understand the AV Blocks
Thanks a lot for your help! You are very talanted and very clever!
You explained so well !
Wow!!! I like how simple it is explained. Thank you!!
Dr dirty this is just beautifully explained
God bless u
Dude that was simply brilliant. Lemme drop a beat for you..
1st degree AV “Block” isn’t actually an actual block. It is more of a delay in the conduction. As can be seen, that is why QRS complexes are still present because the impulses can still pass through the AV node and into the His-Purkinje System but with a prolonged PQ or PR interval because of that delay in conduction :)
I failed out of medic school glad I found these videos
So well explained I actually understand! Thank you
This is well put together. Thanks!
So good! Thanks a million 😊
ThankYou so much!!!! Best explanation ever!!!
Thank you so much for this!
you are the definition of awesome thank you
Thank you for your help. It was awesome and simple
This is awesome! Thank you!
Great review! Thank you.
This was really helpful...thank you so much...I have my exam tomorrow 😭you saved me
Amazing explanation.Thanks
You are the best. Period.
YOUR explaination is amazing 🌸
I can't Thank you enough for this video
Thats cool dude,short & sweet, u nailed it
Thanks for valuable information