Atrioventricular reentrant tachycardia (AVRT) & AV nodal reentrant tachycardia (AVNRT)

Created by Bianca Yoo.
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Пікірлер: 166

  • @Sara-vg9xu
    @Sara-vg9xuАй бұрын

    I spent so much time trying to find a good explanation on KZread, this was by far the best and most concise. Thank you so much!!

  • @Emine958
    @Emine9588 жыл бұрын

    Best video on the internet regarding this topic. Very few people can clearly and adequately explain it. Amazing job! Thank you!

  • @fatilyuz4011

    @fatilyuz4011

    4 жыл бұрын

    take THİS: kzread.info/dash/bejne/q4B9ltujYbfAmMY.html

  • @Dgenz24

    @Dgenz24

    Жыл бұрын

    Agreed!!

  • @MyLittleFarmhouse

    @MyLittleFarmhouse

    6 ай бұрын

    Totally agree 👍🏽

  • @abeam91
    @abeam917 жыл бұрын

    i'm crying, literally. got incoming internal medicine exam in 2 days, found this video, really give me a hope to pass the exam with flying colours. thank you very much, ma'am.

  • @guccigirl3158

    @guccigirl3158

    4 жыл бұрын

    Hahaha samalah 😭

  • @94lovinlife
    @94lovinlife3 жыл бұрын

    ER nurse here, been on the floor for 3 years and this is hands down the best video I've found and keep coming back to for refreshers

  • @MegaMrDanne
    @MegaMrDanne4 жыл бұрын

    Everyone: trying to study for exams Me: trying to make sense of what's wrong with my heart

  • @anuragprasad8700

    @anuragprasad8700

    3 жыл бұрын

    Can you explain your symptoms

  • @sumanuel
    @sumanuel4 жыл бұрын

    This is wonderful. I gotta give a seminar about this in about 9 hours and now I know how to do it well. Thanks a bunch.

  • @psid8
    @psid86 жыл бұрын

    This is the best video I could find on this difficult topic!

  • @frankchiang9441
    @frankchiang94415 жыл бұрын

    Stumbled across this topic while doing my own extra research study. Your presentation is absolutely fantastic, and I believed you just made my next three-and-a-half-year of miserable life a little bit brighter. Cheers!

  • @graciouslygrace4782
    @graciouslygrace47828 жыл бұрын

    wow! you explained it amazingly well...thanks a lot!!

  • @mrkekman9526
    @mrkekman95265 жыл бұрын

    Holy shit what a video. Been trying to learn this for the last year. You have one very happy Paramedic student. Thankyou.

  • @Bellg
    @Bellg2 жыл бұрын

    I'm not a medstudent, I'm just here because it seems I suffer from this. Thanks for the video, it is nice to get a better insight into the condition

  • @MyLittleFarmhouse
    @MyLittleFarmhouse6 ай бұрын

    Thank you for explaining what’s going on with my heart so clearly 💕👍🏽

  • @anteater2536
    @anteater25363 жыл бұрын

    much more clear than my professor explained in the class. thanks

  • @TheAlirra
    @TheAlirra9 жыл бұрын

    this made it so clear. THANK YOU

  • @rishithaaa
    @rishithaaa3 жыл бұрын

    Best explanation i ever found. Satisfied much.

  • @athenaky8555
    @athenaky85558 жыл бұрын

    Ok if i pass my cardiology exams i will own it to you. really

  • @andreiplopeanu8133

    @andreiplopeanu8133

    8 жыл бұрын

    +athena ky Have mine next tuesday...this is the first video that makes things clear...started to loose my hope

  • @athenaky8555

    @athenaky8555

    8 жыл бұрын

    Andrei Plopeanu Girl don't loose your hope! Keep on trying. Cardiology is a pain in the ass. I was crying like a little baby the day before my exam. But I assed the exam :) Don't stop trying :)

  • @ABCEDEFG911

    @ABCEDEFG911

    4 жыл бұрын

    Andrei Plopeanu ce specialitate ti-ai ales la rezi? 😅

  • @amandaforesteire2615
    @amandaforesteire26156 жыл бұрын

    This was so helpful, thank you so much!!

  • @jamesperry6298
    @jamesperry62989 жыл бұрын

    Thank You so much for the thorough explanation. I was diagnosed in 1998 with AV Nodal Reentry Tachy, had an ablation shortly thereafter to treat the condition. However, after the procedure my doc informed me that the affected area was too close to the a/v node, and he was not able to completely get all of it. So fast forward to today, I average 4 to 6 skipped beats per minute, with the occasional runs of tachy occurring. I am back on the heart meds, taking Metoprolol extended release 100mg 1x per day. I just somehow feel like this will be the bugger that gets me in the end. At least I now know what is happening inside my chest, Thank You :)

  • @akshayholla346
    @akshayholla3468 жыл бұрын

    such an amazing way to explain svt

  • @MohammadrezaSd4574
    @MohammadrezaSd4574Ай бұрын

    This is the best video I could find on this topic, Thank you so much

  • @maheshwariv7744
    @maheshwariv77443 жыл бұрын

    I thought i could never understand this.. bestestestestet explination.. thank you soooo much❤

  • @syedshah6378
    @syedshah63783 жыл бұрын

    I have watched many videos its my favourite video of all time. Thank you

  • @zara123999
    @zara1239997 жыл бұрын

    Really very well explained! Thankyou

  • @JesusBeloved18
    @JesusBeloved188 жыл бұрын

    This is amazing. Thank you so much!

  • @nebrasabuabed1115
    @nebrasabuabed11157 жыл бұрын

    wow !!!! now , I understand this concept much better !!!!! thank you !!!!!!!!!!!!

  • @srilakshmikalidindi2461
    @srilakshmikalidindi24613 жыл бұрын

    just amazing, I wouldn't have understood this topic without your video!

  • @tulibaumbusch9973

    @tulibaumbusch9973

    3 жыл бұрын

    Did you understand why the fast pathway of the AVNRT (8:02) is the one with the long refractory period? Why is it faster when the AP takes more time to recover? Doesnt make sense to me honestly

  • @dnavaez
    @dnavaez7 жыл бұрын

    AMAZING video, Thank you very much!

  • @ayeshaansari3518
    @ayeshaansari35183 жыл бұрын

    Thank you for creating this!! :)

  • @deepikaaggarwal5124
    @deepikaaggarwal5124 Жыл бұрын

    Thank you so much for this wonderful explanation 😊

  • @seykimbob8531
    @seykimbob85312 жыл бұрын

    It's pretty good. The vdo make me easy to learn about AVNRT and AVRT. Thank you!,!!

  • @seymss15
    @seymss153 жыл бұрын

    Thank you so much!! I finally understood it.

  • @summaiyafathima2689
    @summaiyafathima26894 жыл бұрын

    Awesome 👍 explanation. Good work👏🏼👏🏼👏🏼

  • @luisahah123
    @luisahah1233 жыл бұрын

    THIS VIDEO ALONE SHOULD REPLACE ALL MY ARRHYTMIA LECTURES, I ADORE YOU

  • @tulibaumbusch9973

    @tulibaumbusch9973

    3 жыл бұрын

    Did you understand why the fast pathway of the AVNRT (8:02) is the one with the long refractory period? Why is it faster when the AP takes more time to recover? Doesnt make sense to me honestly

  • @doctorsofgoldenhour
    @doctorsofgoldenhour4 жыл бұрын

    Best video so far i found on this topic

  • @shantanusingh9571
    @shantanusingh95714 жыл бұрын

    Thanks a lot! Crisp explanation

  • @Sallasdup
    @Sallasdup5 жыл бұрын

    as below. Extreeeeemely well presented!

  • @artushhovhannisyan1683
    @artushhovhannisyan16832 жыл бұрын

    Just amazing. Thank you.

  • @shakezilla29
    @shakezilla294 жыл бұрын

    god, this is so clear. thank you

  • @thomassutedja9285
    @thomassutedja92852 жыл бұрын

    Simple but excellent explanation...👍

  • @williamyates5863
    @williamyates58638 жыл бұрын

    so good thank you from an intern!

  • @ravidsakumar1
    @ravidsakumar15 жыл бұрын

    Wonderful job ... great video...

  • @user-wt4id1hn4g
    @user-wt4id1hn4g4 жыл бұрын

    Thank you so much! You saved me.

  • @peterfuchs4858
    @peterfuchs48589 жыл бұрын

    Perfect!

  • @a.m.e.r.k1805
    @a.m.e.r.k18054 жыл бұрын

    thanks a lot for a great explanation

  • @harveenkaur1713
    @harveenkaur1713 Жыл бұрын

    super helpful! thank you!

  • @tulibaumbusch9973
    @tulibaumbusch99733 жыл бұрын

    AMAZING Video THANK YOU! the only question I have regarding the AVNRT is: What do the 2 sketches on the right exactly represent in the heart? Is the straight line before the branch the AV node and the two branches coming from it the right and left ventricel?

  • @TheShabooka
    @TheShabooka4 жыл бұрын

    Love the explaination ty

  • @preetisinha4484
    @preetisinha44845 жыл бұрын

    Amazing thank you !!

  • @MohamedAhmed-jf4qu
    @MohamedAhmed-jf4qu2 жыл бұрын

    wow just wow ...thank you

  • @g81417
    @g814179 жыл бұрын

    great video!

  • @findaika
    @findaika5 жыл бұрын

    Thankyou!! Best video

  • @c.linfordnitin7390
    @c.linfordnitin73905 жыл бұрын

    Thanks a lot !!! Really helpful!!!

  • @hatirose7503
    @hatirose75036 жыл бұрын

    beautiful! thanks

  • @user-zw8zp8xw3m
    @user-zw8zp8xw3m6 ай бұрын

    Im a 5stage pharmacist from Iraq thanks you alot❤

  • @aleyup8158
    @aleyup81587 жыл бұрын

    Very useful, thank you

  • @Humbleman2024
    @Humbleman20242 ай бұрын

    8:27 Yep, that is perfection! 🎉

  • @joshfraser3991
    @joshfraser39915 жыл бұрын

    You did an awesome job!

  • @joshfraser3991

    @joshfraser3991

    5 жыл бұрын

    Just wish u talked alittle more about other accessory pathways.

  • @sumityadav-dw3be
    @sumityadav-dw3be3 жыл бұрын

    Much helpful video.. gud job👌👌

  • @imacheese1
    @imacheese19 жыл бұрын

    Great video! Can you tell us what software you've used to create this video?

  • @gavisel
    @gavisel5 жыл бұрын

    Amazing from Italy

  • @SuperYaniv12
    @SuperYaniv123 жыл бұрын

    Thank you so so much!

  • @shazaaa8444
    @shazaaa84444 жыл бұрын

    So helpful thank you

  • @johnsonmatola6601
    @johnsonmatola66017 ай бұрын

    very well explained 👍

  • @anonymekatze2612
    @anonymekatze26125 жыл бұрын

    Thank you!

  • @Nndngn
    @Nndngn4 жыл бұрын

    Excellent explanation tq so much

  • @mohammedkabir3485
    @mohammedkabir34855 жыл бұрын

    THANK YOU!!!

  • @Nogirlsnolife
    @Nogirlsnolife Жыл бұрын

    thank you for this video

  • @elena.derm1
    @elena.derm18 жыл бұрын

    Wow I didn't know that the normal AV node has 2 pathways :-o none of my books mentions it :P thanks!

  • @patrickmorris5377

    @patrickmorris5377

    7 жыл бұрын

    The normal AV node has only one pathway, physiologically. The presence of two pathways is a congenital defekt.

  • @dodadoda517
    @dodadoda5179 жыл бұрын

    u r brilliant

  • @k.f9096
    @k.f90967 жыл бұрын

    8:14 so does that mean normally impulse conduction in avn down to bundle of h n so forth is done by fast pathway n not slow ? cuz u said slow comes down hits fast which is refractory n it goes refractory itself? plz any help

  • @Lindokuhlem
    @Lindokuhlem9 жыл бұрын

    you are awesome! :)

  • @mustafaalnagdi2815
    @mustafaalnagdi28154 жыл бұрын

    Really great job. You made it look really easy. I just have a little question here. What is the significance of having a slow pathway & fast pathway?

  • @yohannchineegadoo6444

    @yohannchineegadoo6444

    4 жыл бұрын

    Smn Commented theres only one pathway physiologically but in congenital defect, theres 2

  • @danielnavarro-orozco1161
    @danielnavarro-orozco11617 жыл бұрын

    Thank you, excellent video. My only comment is that the normal QRS width is .08-.12ms, this means that in order for it to be narrow complex the parameter should be

  • @zahramomeni4007
    @zahramomeni40074 жыл бұрын

    This video was really great.helped me to understand this difficult topic could i know the doctors name?

  • @iriinaradoi
    @iriinaradoi7 жыл бұрын

    Thank youuu

  • @tenzinyangchen2931
    @tenzinyangchen29315 жыл бұрын

    Thank you

  • @036484639207
    @0364846392072 жыл бұрын

    Thank you 🙏

  • @jamesmcnally4571
    @jamesmcnally4571 Жыл бұрын

    that was very good thanks

  • @traumagotmesick6750
    @traumagotmesick67505 жыл бұрын

    Thank you!!!!!!!

  • @nefertiti7367
    @nefertiti73676 ай бұрын

    First time in my life understanding the difference

  • @Mysttable
    @Mysttable4 жыл бұрын

    Thanks !

  • @alcarinna
    @alcarinna4 жыл бұрын

    Thank you

  • @luqi01
    @luqi016 жыл бұрын

    at 5:36 she said that the impulse can travel from the accessory node back to the AV node and cause a tachyarrythmia, my question is, since A/V node has a refractory period and can regulate the rate and rythm, why will the A/ V node cause tachyarrythmia, as in why will it let the impulse from accesory pathway through to begin with?

  • @chijiokenwambam5854
    @chijiokenwambam58542 жыл бұрын

    My lecturer's slide on this topic is so annoying and confusing. Thanks so much for making this very clear

  • @johnydavilma8409
    @johnydavilma84095 жыл бұрын

    Genius!

  • @haiderissa163
    @haiderissa163 Жыл бұрын

    Thanks🙏

  • @lauren1359
    @lauren13597 жыл бұрын

    wow... leaving Thursday morning for mapping study plus or minus ablation with possible cryoballon... my hearts insane... I hope it works. thank you for this video!! would avrt or avnrt cause 17 pauses in 48 hours with the longest being 8.7 seconds?

  • @markyounger1240
    @markyounger12407 жыл бұрын

    Very good lecture. The only thing I would change is that the slow and fast pathways are not really "in" the AV node. The slow pathway is between the tricuspid annulus and the coronary sinus and the fast pathway is on the other side of the coronary sinus. Otherwise, excellent presentation.

  • @merngerm

    @merngerm

    6 жыл бұрын

    more specifically it is in the triangle of coch...tendon todaro area. but YEAH!

  • @fredtzystuck5794
    @fredtzystuck5794 Жыл бұрын

    Thanks for the video. With an accessory pathway such as wpw or lgl conducting in the presence of afib with rvr it isn’t safe to give a nodal blocker such as adenosine, beta blocker, cc blocker, or even amio. However, procainamide is considered safe. What is it about the pharmacology of class Ia anti-dysrhythmics (thinking of the relatively flat phase 0 action potential in the av node that makes it safe and not prevent conduction in av node?

  • @kalldagreat
    @kalldagreat9 жыл бұрын

    3rd question, since the reentry phenomenon is going to revolve around the AV node and the accessory pathway in a vicious cycle manner, there will be new electrical signals coming from above (SA node/atrial pacemaker cells) too right? wouldn't that cancel off the reentry mechanism and lead to a normal anterograde conduction again, if that's the case, how can it still be said "the reentry circuit phenomenon takes place over and over and over again".. because it doesnt..??

  • @mohamadawada4656

    @mohamadawada4656

    9 жыл бұрын

    The normal sinus rythm (SA node signal) will be blocked due to the refractory period of the reentrant circuit. And you are correct, the sinus rythm might stop the AVRT if timed precisely.

  • @becjarvis1432
    @becjarvis14325 жыл бұрын

    Thank for the video! Why does the AV node not work as "the gate keeper" for the conduction from the accessory pathway in AVRT?

  • @CountZero78

    @CountZero78

    4 жыл бұрын

    Because the accessory (extra) pathway shouldn't be there in normal anatomy, the AV node is at the "gate" but it cannot stop electrical activity from crawling through a hole in the fence 100 yards away. (I think that makes sense)

  • @cdear84
    @cdear849 жыл бұрын

    Just had my 2nd ablation, 3 days ago, for WPW. 10 years between procedures. Thought we had it beat (no pun intended). Hoping this one is a permanent fix!

  • @mattchan5913

    @mattchan5913

    9 жыл бұрын

    Chase Dear All the best mate! Hopefully have it covered now!

  • @imogenmcintyre2339

    @imogenmcintyre2339

    8 жыл бұрын

    +Chase Dear Hi I am thirteen, and last year in November l had my first keyhole ablation, I haven't had any episodes so far and I used to have strange episodes, at least, every two months I was wondering how long it took for your symptoms to come back, in case mine do, because I really don't want to take the meds for it, and I do not want to do nothing as they said as one of the options for me. So I took the option for the surgery because I didn't want it to define me for the rest of my life. You know how people are... "Oh, you came first place in that race, But don't you have that thing wrong with your heart? You didn't feel faint as you crossed the finish line?" I'm sure you know what I mean by those dumb people who assume everything... But yeah my surgeon said after a year they could take out my implant that tracks my heart (reveal device). So I was wondering if it took over a year or under to come back in case mine does (fingers crossed it doesn't) :) .

  • @erick7brian

    @erick7brian

    3 жыл бұрын

    @@imogenmcintyre2339 how have you been since your ablation?

  • @SouryaYallapragada
    @SouryaYallapragada Жыл бұрын

    Why does the AV node have 2 pathways? What's between them? The AV node feels like the most important thing in this conduction system, with the SA node right behind it. What is the proper physical (anatomically close) structure to a healthy AV node and how is different in AVNRT?

  • @hustle-kn5xp
    @hustle-kn5xp4 жыл бұрын

    This is 100000 times easier than I thought. Most people do a poor job explaining it (or perhaps they do not understand it themselves)

  • @queenmavichak6183
    @queenmavichak61837 жыл бұрын

    Is it normal for nodes to have slow and fast pathways?! In the first example, how come the slow pathway doesn't go down the tract? Why is it halted when the fast pathway is going through refractory period?

  • @ProfYounge
    @ProfYounge9 жыл бұрын

    The video says that a supraventricular tachycardia involves a narrow QRS

  • @hamizahmohdrazib4825

    @hamizahmohdrazib4825

    9 жыл бұрын

    Lorraine Gary what i was being taught, essentially narrow QRS means that the problem doesnt lies on the ventricular muscles. To make it simple, broad QRS should make you think of either bundle branch block or ectopic(s) that originates from the ventricle if that makes sense?

  • @josephs8029
    @josephs80292 жыл бұрын

    Love you 😘

  • @shuenshuen
    @shuenshuen3 жыл бұрын

    For the first time in 2 years I finally understand the way AVNRT works, all I knew before this is that it sucks haha.

  • @Travisfromoregon
    @Travisfromoregon8 жыл бұрын

    interesting, the refectory period is basically the same thing as a capacitor charging and discharging.

  • @merngerm

    @merngerm

    6 жыл бұрын

    WOW now that you put it that way ...... that is so right

  • @shuenshuen
    @shuenshuen3 жыл бұрын

    Also a question, is this something one is born with? Or can this be caused later on in life? I never had any problems until I abused a cathinone called 3mmc for over a year. After a few ECG's my doc told me it's was AVNRT. I just wonder if I caused this entirely by the substance abuse or if I only 'triggered' it.

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