AV Blocks (1st, 2nd, and 3rd Degree)

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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.

[@SanguineMedical]

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.

[@user-kilrilirrlri]

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

[@lovelylibra7349]

this is awesome thank you!

[@vypmnoo0]

Another way for Wenkebach is " Every time she *Winks* my heart drops a beat"

[@joshujere2988]

Thank you for this😩

[@emmanuellaozono5046]

Mad😂

[@theovercomer7032]

This is going to be “He” for me😌 Thank you

[@lifeisrosyyy]

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.

[@aaronchandler152]

Most instructors over explain the simplest things. It’s called job security

[@beccaaustin3300]

THANK YOU!!!!!!! I always have so much confusion between differentiating the heart blocks. This is the best explanation I've heard yet.

[@lauracarrillo884]

Thank you👏

[@EscapeRealm99]

Totally agreed 🤗

[@vvvvk7067]

4 years later still can relate

[@lisahunter8713]

Best explanation!

[@chrisb833]

You explain everything so well, thank you for taking the time and effort to teach for free on youtube. I'll definitely donate!

[@karlexandra84]

Woah this is the simplest way to remember! It only took me 5 years to find you to explain this to me lol!

[@marksoliman569]

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!

[@bunbunhachigatobu]

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!!!

[@giancarlofernandezarica2403]

Excelent work, this is definetely the best explanation of a-v blocks I´ve ever heard

[@Starrfortythree]

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:)

[@mohammadfomar825]

Goodluck !!

[@TaranTucker]

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.

[@user-po5mi9pw4u]

I am fifth year and this is the first time I comprehend ECG!! really thank you for awesome explanation.

[@MsGrandunion]

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!

[@DirtyMedicine]

Errata: Mobitz II is a regular PR-interval followed by a dropped beat

[@veganwilliams8868]

Thanks for correcting this.just about watched this right now and was like WTF

[@cmy8352]

Regular PR is progressive and beat drop

[@n_justwatching]

Please pin this to the top of the comments so everyone who watches the video sees it. But great video, very helpful. Thank you!

[@pietndala7394]

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...

[@MegaBlUeMuSiC]

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!

[@martinwelsh958]

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

[@ipatchee007]

Thanks. Clear, concise, easy to follow and great mnemonic !

[@ianh4754]

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.

[@farahmann8377]

Thank you. I seem to get it now. Never can figure them out from each other. Clear as crystal

[@MrMiamiswaggz305]

This explanation is out of this world, thanks man.

[@leannewilson8872]

This video is awesome, thank you! I get stuck between 2nd degree Mobitz II and 3rd degree, this video helps!

[@kellyagyingi3412]

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.

[@jitishakhokhani8130]

Thank you so much for simplifying it to this extent! Love this video!

[@drayazarif]

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.

[@kalapa100]

look who is studying along with u !

[@garciapierre3272]

lol..mi too

[@_BASIC_INSTINCT]

i just fake a seizure. pro tip

[@durkhanaibibi]

Ayaz Arif hahaha! Same 😒😔

[@ayaanchoudhury3657]

I have an ecg cn sm1 pls hlp...m vry tensed

[@supertenor561]

Thank You So much! Best explanation so far on how to memorize and understand the difference.

[@nettieappiah]

I am glad you explained it. Thank you soo much

[@SherbetSelket]

This is phenomenal!!! Thank you!!!

[@poopdedoop]

This is explained extremely clearly! Thank you!

[@krazymexicanchick]

Thank you so much! I never understood 3rd degree block until you explained it.

[@user-ec1kc3ud2d]

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.

[@kiellr]

That was a great discussion of AV Blocks. Thank you very much

[@rimdup1]

Thank you.. you've made this much easier to remember...

[@MrVagabondscott]

hands down best summary I've come across

[@maryamnour8801]

Thank you for making these videos!

[@carademi2245]

9 min of pure understanding!! Thank you for explaining this soooo well. Answered all my questions as I was thinking about them 😅

[@k9builder]

I have a pacemaker due to Bradycardia and Mobitz Type 2. Very interesting video explaining part of my condition. Thank you.

[@petesantana7302]

Love it! Doctor you are absolutely fantastic

[@arwakh8109]

Thank you. You are the best

[@anitablanco7309]

Very precise explanation! Thanks for your video!

[@madamtbutterfly]

Thank you!!! Your video has helped a lot!! I was able to pass my test with a 98%!

[@sawon6015]

Thank you so much. I wish you all the food in the fridge.

[@Doctor_SKM]

Thank u , I was struggling with 3rd degree AV Block and now understood. Thanks again.

[@ronnie.1983]

Great job. Continue producing videos. Sooo useful.

[@DudeitsKevin]

Thank you for this! I just never got a clear understanding of Wenkebach and Mobitz 2...until i saw this video.

[@lauralee3218]

TERRIFIC!!!! THANKS👍..... very helpful!!!!

[@robinharvey6104]

Excellent definition of the 3 Bradyarrythmia's

[@nursiedream]

I love you too! + Love the use of your mnemonics!

[@christina-zp5op]

perfect!! thanks for always being awesome!!

[@gcvoon286]

Well explain, great video. Getting to understand the AV block and drop beat. much thanks,

[@360mega]

You are a good teacher! very understandable and good voice for teaching!

[@raji.joyous2109]

such a great teacher you are! thank you

[@jon1914]

This is a fantastic video and explanation! Thank you!

[@positivelybeautiful1]

Good medicine, this was the hardest for me to understand for so long, now very easy. Thank you.

[@EerybodyIsAnnoying]

Wow!!! I like how simple it is explained. Thank you!!

[@sheilaawugah4073]

I think this is the best video on heart blocks. Thank you

[@doegasque9904]

Thank you for this! You have the best way to explain ever!

[@SuperZlb]

"Yo man, I'm about to drop a beat. Check out my new EKG! That's Wenkebach." Out now on Soundcloud

[@kympeachey7664]

Brilliant, this has been so incredibly helpful, thanks

[@scottd5950]

No, you're high yield. From a cath newbie, I thank you. Great resource.

[@JamPrabha]

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

[@JamPrabha]

Oh and is it only me who jumped up from the seat when that sound came up 6:13 ???

[@DirtyMedicine]

sorry no idea what that sound is or how it made it into the video lol!

[@MegaChino1973]

great description of AV blocks

[@meseretasfaw3823]

Man I have watched many vides but yours are unique. I can only say thank you so much!

[@chriskahn1338]

Well done! It made everything that much more clearer.

[@edvedder7835]

Excellent explanation. Thank you.

[@hillalex219]

Helping students like me pass PA school exams. Thank YOU.

[@DirtyMedicine]

Please share with your classmates !

[@erfincewanimbo2024]

Thanks. This helps me so much to understand in a simple way.

[@silvestrejones2490]

Absolutely fantastic...!!

[@Kwittiekat]

Incredible video. Can’t thank you enough for these.

[@DanielDuffield1]

This is phenomenal!

[@ljoo83able]

Love this!!!

[@magicturtle_6936]

Gold material, thanks!

[@DavidMartinez-or5gw]

AMAZING EXPLANATION. THANK YOU

[@misstinaaa]

such a clear and excellent explanation! thank you!!! :D

[@camman924]

love this video! you explained it perfectly.

[@camman924]

Awesome interpretation. super easy. thanks!

[@diandrad406]

Great explanation! Short & concise.

[@tatyanaoeler5930]

Thanks a lot for your help! You are very talanted and very clever!

[@abdulazizalhowaish2692]

Thank you very much! you made it easy to understand the AV Blocks

[@zamie9143]

You explained so well !

[@ramyasmruthismruthi1623]

Dr dirty this is just beautifully explained God bless u

[@hrushikesh8333]

Dude that was simply brilliant. Lemme drop a beat for you..

[@yourmom705]

I failed out of medic school glad I found these videos

[@jessicadee2301]

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 :)

[@btashinga.m]

This is well put together. Thanks!

[@MsVMirka]

So good! Thanks a million 😊

[@katierush9584]

So well explained I actually understand! Thank you

[@asmamuhammad6666]

ThankYou so much!!!! Best explanation ever!!!

[@anant02jan1]

Thank you so much for this!

[@Maumau21]

you are the definition of awesome thank you

[@joeb.8213]

This is awesome! Thank you!

[@mariashelly4812]

Great review! Thank you.

[@santu64]

Thank you for your help. It was awesome and simple

[@namivast6253]

This was really helpful...thank you so much...I have my exam tomorrow 😭you saved me

[@user-lr7ey4qh6e]

Amazing explanation.Thanks

[@Dr.SheepDO]

You are the best. Period.

[@Brozer999]

YOUR explaination is amazing 🌸

[@hg77777]

I can't Thank you enough for this video

[@scebitembe1418]

Thats cool dude,short & sweet, u nailed it

[@rkmusicstudio1008]

Thanks for valuable information