Understanding Supraventricular Tachycardia (SVT)
This video contains an explanation of supraventricular tachycardia (SVT), aimed at helping students of medicine and healthcare professionals prepare for exams.
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I have been a nurse for over 30 years and I’ve worked in internal medicine the majority of them. This is probably one of the best descriptions of SVT I’ve ever heard.
Thank you!
SVT gang where u at
Yea bro I’m here
Here
Had one last night. I'm BLS. Non-symptomatic with HR 160s and BP 170s/110s.
400 Hart beat per minutes
Right here fam.
Spent years in medical school struggling to understand SVT and you just made it super easy for me to understand in a few minutes. 😎
have had 2 stress tests and 3 holtor monitors, recent for 3 days, and many ecgs. i get svt a few times a day but only for a few seconds most times and can be 5 mins but not often. my cardiologist and other doctors said it was harmless and i don't need treatment, i am on beta blockers 40mg though. but it scares me that it is so often. i also feel my heartbeat constantly but nothing was caught during that. do you think i should ge more opinions?
sameeeeee hereeeeee
Same here
@@seyedehsadafalavifard9966 twquya78e8ww8qssa8quayuuiakjaaiaajajjaajajajajajjajauauiwi9e9wieiiissiissioiikssjsiia8uaajjajaaaiæu2yww
Thanks for the info.
It took 4 coronary specialists in 4 countries over 50 years before I got correctly diagnosed as having SVT. I was usually given sedatives being regarded as an anxious female, then adenosine intravenously to correct heart rate. A brilliant doctor visiting Monterey hospital diagnosed my SVT as an electrical problem and gave me a catheter Ablation all done in 10 minutes!
Can I ask about the ablation? How was it? Did it feel weird afterwards? Are there any scary side effects? (Thinking about getting it done) Thanks
Astounding. It's usually a diagnosis at the intern level...really.
It’s concerning how often doctors will dismiss SVT episodes. Mine became very active almost 10 years ago. Took providers 5 years to refer me to cards. I was always told I had medical anxiety and that if I’d stop focusing on the “funny feelings” in my heart, the sensation would “go away” and I’d forget how scared I was. That’s not how SVT works but as a stupid pleb I leaned there was no point in trying to reason with MDs.
I'm watching this because I had SVT, the atrioventricular reentrant tachycardia kind, when I was younger and want to understand it better. After my surgery at age 11, I haven't had any more episodes, but it was terrifying. This video explained a lot. Thank god for medicine and its practitioners. Great video!
This is the best explanation of SVT whatsoever! Greatly appreciated!
Was diagnosed with SVT at 11 years old and had ablation surgery. Resting heart rate was 180 and had symptoms of closing throat and difficulty breathing. So grateful for the wonderful doctors who helped me! Thank you for explaining these heart conditions and teaching others!!
Are u normal after ablation??? Is an ablation worth?? Please let me know
@@meghcreation8392 I suffered it in 2019 july...my pulse went to 266 bpm...I had an ablation and now I am good but Covid hit me today and my heartbeat raised high because of covid..I have taken an appointment with my Doctor and Will be checking shortly... I'll also take an ECG to check my heart condition right now
@@ferosekhan2389 wow, I'm still lucky I guess, because my heart rate was only between 90 and 110
I think I'm growing through that right now not breathing right and my body shutting down
im 12 years old and four weeks ago had a terrible episode. i had two before that, but we didnt know it was SVT. i had 250 bpm for an hour and a half to two hours. my school nurse wouldnt call an ambulance for me when many doctors said i needed one. i arrived at the hospital unstable and had to be dropped off and brought into the room alone because my mom couldnt find parking. currently im on a beta blocker and havent had an episode since. all i am now is scared ofhaving another one. i had three in one year which isnt common.
I’m a victim of Pulseless Ventricular Tachycardia where my heart is beating so fast, you can’t feel a heartbeat. It’s been caught at 197bpm but that’s only the beginning. They discovered I have a very rare heart defect I was born with, known as Wolff, Parkinson, White Syndrome. That’s only part of the problem since I also get bradycardia and A-fib plus spontaneous blackouts. I’m so rare because I have a short circuit between the SA node and the AV node besides the normal pathway. So my poor heart gets two different signals and messing everything up. I now have an expensive loop heart monitor implanted in me that checks my heart 24/7. That’s so my Electrophysiologist can find each heart cell involved in the short circuit. In a rare procedure, he will have to destroy each rogue heart cell one cell at a time to stop the short circuit from happening again. That could take up to 10 hours and I cannot move, so I’ll be strapped to the table unconscious. Btw, I’ve now lived with this heart defect for 78 years, an accomplishment for this poor heart still beating in my chest.
wow! That's amazing, sir! Even though you've heart abnormalities since birth, you still live up to 78 years old!! I'm currently 14 years old and I have tachycardia my resting heart rate range is between 90 and 120 bpm.. I was too concerned, but your situation before was a lot worse than mine
@@hanz5300 Hanz, my case is rare and you should not judge your tachycardia against mine. My defect alone is one in a million, the odds of me living to my age is probably one in ten million. Back in the 1950’s when I was 10, nothing was known about heart rhythm problems when I blacked out for the first time I can remember. All I know is one second I was okay, the next I was on the ground or floor, wondering what happened. There are a number of things doctors can and will do for you. Medications is one, there are several things you can do to ease up you triggering your tachycardia. Anxiety is one thing, do not constantly think about it, stress is another trigger. Stop drinking anything with caffeine in it. Anything with a stimulant like caffeine in it can trigger it. So you will have to live a more calm, peaceful life. Of course I knew none of this at your age and I suffered because of it. I hope doctors can calm your heart down Hanz but you have to work on keeping yourself calm. By the way, I’m in the United States if you are wondering. Good luck, let me know how things work out for you, just keep track of this post on You Tube.
@@robertmiller3810 Also, I found out the thing that triggers my condition
Sir....am 45 yrs old lady from India....am experiencing heart palpitations...doc diagnosed as SVT....sweets and chocolates are my triggers. ...i have a 3 cm hiatus hernia...sir pls talk to me
@@kailashmanas3501 What would you like me to talk about? Many things can cause tachycardia which your doctor should have explained to you. Chocolates are just one thing, like I already explained to the last poster on this subject. Since you have access to the internet, you can research for answers to questions you may have. When I was your age, I used to plan things years in advance. Now I cannot even plan what I’ll do in the next second because my birth defect can stop my heart between the first half of a heartbeat and the second half. I cannot worry about my life ending in an instant because stress can trigger tachycardia. I am not a doctor so I cannot give you medical advice but I can try to answer questions you may have because they have happened to me.
Having had atrial fibrillation, atrial flutter and svt this video helped me to understand the difference. I’ll need to watch it a few times to remember it all though!
I have suffered from bouts of SVT since I was 26 years old. Initially they only lasted between about 2 and 5 minutes. Later, when they lasted for hours, I had to be treated by adenosine. I never fully understood it, but I do now. Thank you!
This is by far the BEST explained SVT video on You Tube. Thank you very much.
Thank you for these! These videos have helped me understand the SVT issues I started to have, understand my heart much better and now to push my doctor to get me into a cardiologist before my heart kicks on out
thankyou! this makes SO much more sense than the hospital training of just looking at ECG squiggles
this helped me understand what i have so much better. im 12 years old and four weeks ago had a terrible episode. i had two before that, but we didnt know it was SVT. i had 250 bpm for an hour and a half to two hours. my school nurse wouldnt call an ambulance for me when many doctors said i needed one. i arrived at the hospital unstable and had to be dropped off and brought into the room alone because my mom couldnt find parking. currently im on a beta blocker and havent had an episode since. all i am now is scared ofhaving another one. i had three in one year which isnt common. wishing all people who are going through this the best of luck. here are so tips i got from my cardiologist that helped. If you are in an episode, start acting like you are trying to poop and pushing really hard. In an episode, bending over and violently coughing can help get you out of it If you are in it for more then 20 minutes and these techniques haven’t worked to get you out, go to the hospital. If you dont have someone to drive you call an ambulance. driving can be stressful and you dont want to faint while driving.
I tried those techniques but there are just some SVT episodes that will no longer stop unless you get adenosine injected in the ER. Had two of those episodes two weeks apart so I decided to have an ablation and it was done two days ago. Still monitoring my heart now. Fingers crossed.
@@cjj7107 have a meeting tomorrow with the ep to get the ablation done. I have had 4 bad episodes in one month.
@@elizabethwagerFour episodes! 😢 I hope your ablation will go well and you'll be back to normal life with peace of mind soon. 🙏
Well explained. Clear and easy with sufficient diagrams. Thank you.
For 2 years I'm hearing about SVTs, but never knew what it meant. And finally you explained the causes, types and management in a simple and great way. Thank youuuuuuuu!
Has your s v t been resolved in a lasting way?
Thank you, my wife might have one of these forms and this was most interesting. I appreciate the research and work that went into the making of this video.
You explained SVT better than my diagnosing doctor. I appreciated the amount of detail that went into the explanation of SVT's causes!
I found this verg helpful and edicational. I thought there was only one SUPERVENTRICULAR DX: I was not aware of what the electrical circuitry clinical signs and symptoms were for all three and how differently they are treated. Thank you so much for providing me a working knowledge of what actually is happening. On my way to becoming a Physician Assistant. Thank you.
Thank you Tom for your great work. I am a member on Zero to Final and studying all books with you and going over all questions! Thanks a lot for your amazing work with "How to Read or Understand Medicine" book. God bless you man!
u have no idea how much i struggled to understand SVT and in just 13 minutes u latterly saved my life , i cant ever thank u enough
Just got back from the ER for an SVT attack that lasted 2 hours. Man that was scary. I've had them in the past but they only lasted 10-15 minutes at very most. This one was really terrifying.
I just got home from ER to due to SVT. Same as yours, never been this terrifying. Pulse 204. Shoot!
same! 250+ bpm!
I just got home from hospital from this too most scary thing I’ve ever experienced it, was more than 30 mins and the impending doom I felt was horrible I’m so sorry to anyone that’s gone through this
2 1-2 hours at 170’s … I don’t even go to the hospital anymore, I keep performing the modified valsalva and wait to convert
Trust me,I've been going through this the past month without knowing what it is,and everyone and anyone thinks it's anxiety,well yeah you get anxious from all that build up on top of my breathing right,well anyways have been feeling like this the past month and no solution?Getting told so many things that don't add up?But you're not alone,still tryna get help for this as well.
When I was a senior student, I met an elderly man with a history of rare SVT episodes. He was first treated by Dr. Wenckebach himself with digitalis. It was very effective and he required only a minor dose adjustment. The pt. became a celebrity in the hospital.
Excellently simplified. Great work.
Tom, you are great. how easily you can speak about such a difficult topic. Thanks a lot...
Perfect and simple explanation. Great job,well done. Neverending thanks. I wish I had such great professors...!!!
Thanks! Glad to help
What a comprehensive package this teaching was! I toiled all night to find this!!
Glad to help!
Thank you for this lesson. ACLS rhythms are so much better being simplified like this. At least now my textbook makes a bit of sense
Really the best content I found ! Keep doing the great work ……concise , informative and awesomest …..lots of love❤for the efforts
Thank you! Very detailed explanations. Easy to understand.
Thank you for such simplified clarity on this topic!
Was diagnosed with SVT at 16, and god the first time I experienced an episode, I was beyond scared. Heart would rise up to 220 bpm, and I always felt like I was on the verge of passing out. Luckily I got a procedure done, but there’s still remnants of it (high heart rates)
I was diagnosed at 16 too! It was missed for years! They always said I was just anxious to be at the doctor's.
I had svt few minutes ago. Normally it lasts for 20 to 30 minutes. But I tried carotid sinus massage and it really worked. My heart rate become normal with in 5 minutes. Wow. Thank you
Hi bro how did you do the massage?
You’re lucky mines last like a whole day lol
Wonderful video, and extremely well explained. I had a case of atrial flutter (HR about 120 to 130 BPM). This was very alarming, as my resting rate is normally in the high 50's. My cardiologist performed catheter ablation, and thus far (after 2 years), the flutter has NOT returned. I am reasonably sure that this was caused by fibrous tissue in my heart as a result of alcohol use (2-3 IPA's per day for several years). I think alcohol, even in moderate amounts on a regular basis, causes heart damage. Needless to say, it has altered my view of moderate alcohol use "being good" for the heart. That belief, IMHO, is perpetrated by the alcohol industry itself. So, hopefully others can learn from my own experience. I am very fortunate to still be here, and had a great physician who helped me with this issue. I was 66 years old when this ablation occurred, and in otherwise good physical condition (not obese, 5'8", 145 lbs, and a regular exerciser). Be VERY careful in buying into the idea that small amounts of alcohol, regularly, are good for you. Not everybody !! Do some reading up on this subject in documented medical literature and you will see that I am correct.
id you hear your heartbeat when sleeping?!! and you get insomnia... Please explain to me because I never drink alcohol?!! please
@@user-hr1cp2js5o yes I got this feeling. Are you skinny by any chance
My first two episodes were when I was drinking heavy. I haven't drank for nearly 3 years but I had a 3rd episode a few weeks ago. I was surprised because I thought after I quit drinking they would go away. I later suspected the last one was caused by taking a high-dose turmeric supplement. I can't be positive but the timing made sense. My cardiologist recommended the ablation but I felt I wanted to research first. It's interesting and insightful to hear others' experiences.
I was diagnosed 18 years ago at 22 when I was 6 months pregnant with my son. Said it could be a pregnancy thing, but it wasn’t. I have an extra pathway causing re-entry svt. My heart rate has gone over 200 bpm with the highest at 300 something, which was very scary to say the least! Treated with adenosine time and time again. I’m a pro at it now the paramedic and er docs are always blown away. I’ve learned if you keep calm during an episode and when given adenosine it helps tremendously. Ive Also if this helps anyone, I’ve learned that sitting up abruptly almost always helps it to stop. I lay in the bathtub with the shower on and sit up a few times. Only had 2-3 occasions where it’s lasted hours. I had a horrible doctor try an ablation and stop before finishing because I was moving. You’re only partially sedated with someone touching your groin area… if he was patient 5 minutes longer I was out cold for the next 12 hours somehow. I need to go back but after that experience i’ve been hesitant as well as hoping they’d be less frequent. Adenosine hasn’t worked a time or two in the past few years so I am coming around more and more. I had an episode night before last and I am completely wiped out getting winded walking. At 40 with a house and children, this is difficult to say the least. Luckily I have great kids that know what to do and just sit quietly with me, which is exactly what you need. Thanks for listening 😊 I wish you all long healthy lives and pray everyone finds solution.
Very detailed and easy to understand. Thank you!
Excellent. Clear and simple, many thanks.
My doctor taught me to do the Valsalva manoeuvre by holding my nose, tipping my head towards my chest and blowing hard while keeping my mouth shut. I've found that doing this repeatedly during an SVT event bought my heart rate back to normal - a bit lower each time I tried it. Having an Apple watch has been useful too - it picked up I was having an SVT event before I noticed it was happening.
interesting to hear your experience and how the apple watch helped - I wondered if the apple watch would be helpful in similar situations
Sue Moseley. Just the shock of drinking ice water works wonders when that doesn’t work. I often try it first now
@Arge Aquila Useful if you have a syringe to hand when it happens
@@ZeroToFinals it did for me too. Doctors kept trying catch something during long term ECG with no luck. The other day I had an episode and was wearing an iWatch. Now finally they believe me when I say I have svt..
I am suffering from my childhood. I was good in sports. It spoiled my dreams. 😥.
one of the best medical vids I've ever watched, Ty very much !
I must say this is the most easily explained SVT. Video.I understood more by watching your video then any others
Great to hear, thanks for leaving a comment!
very very good .. straight to the point and delivered in simple understandable language..
Great explanation! Thanks for the huge effort
I must tell u This s the best explanation I've ever heard...and exactly to the point which even includes how to administer the drug....u truly deserve a thumbs up and a subscription
Thanks! Glad to help
@@ZeroToFinals a small request is to make a video on other abnormal heart rhythms,interpretation and mechanism and management in the same way ...precise...to the point.....if its okay
Thank you for helping me understand more about the causes of and treatment for SVT.
Excellent for patient patients too. Many thanks.
I am 12 days away taking my NCLEX RN board exam, cardiac is my weakest spot ,specifically how to interpreting ecg strips and treatment based on it. I am sad that I didn’t find your channel sooner , when I was at school during my cardiac exam. Thank you so much .
How did ur exam went?
Wow , never quite grasped this until now. Thank you
My mom got that svt. Two years ago, mom got ablation treatment, but yesterday svt occured again(200bpm) got shot adenosine 6mg and bpm went to normal.. the doctor look ecg and said it happen again and mom need to do ablation again .. so for the knowledge, when I search on youtube i found this video and this video is very imformative .. thank sir.
Awesome and easy to digest video! Thank you so much!!!!
Fantastic! Pls keep up the good work. Can't wait for broad complex tachycardia
Thanks a million. Very great and easy to understand
What a great video, clearly explains SVT!
EMT here studying for medic school. Thank you so much! This was super helpful.
Glad to help!
Ranger 621 Please keep in mind.... when encountering a person with this rapid heart rate..... often times just the shock of drinking ice cold water stops it for me and my mom both. Much easier than the valsalva maneuver. Her doc taught her that. Was a miracle for me when the maneuver wasn’t working. Instantly dropped my heart rate from 150’s back to 70’s. And i Just recently found in this comment that just holding your breath for as long as you can does the trick and that’s all I’ve been doing lately and it’s working better than anything
@Tsarina Alexandra yes i agree. I have tried multiple maneuvers & tricks to reset heart rate. I discovered just holing breath works EVERY time & no longer need to do anything more
You making best vedeos easy understandable Thankyou so much Keept it up❤️
The valsalva manoeuvre just saved me. Thank you so much.
Ahhhhhhh u just mad my day! Its super easy to understand from ur lecture ❤️❤️❤️
Thank you so much, the video was very helpful. Small correction: Adenosine is not contraindicated in patient with COPD. N
Thank you so much..Am an Anasthesiology resident..This really helped.
Exactly explained 👌 good job 👏 👍 👌 🙌 💪 😀 blessing
Great explanation. Thank you!
This is cool to see broken down, i had svt for about 2 years before getting an ablation to fix it last year (luckily it took only one ablation to do so), i used to have weekly episodes of heart rates greater than 220, not fun. Thanks for the digestible info on the subject!
Had it yesterday, felt like it was going to explode or suddenly stop.
Same I’d ablation and fine now suffered with it from 13 to 25 so glad I went for it in the end
@@tomharvey2412damn y’all started young that’s crazy I just got diagnosed at 19
Excellent video. Appreciate the explanation to what I have.
AMAZING EXPLANATION!!! THANK YOU
I had svt! Past tense because I had an ablation a year ago and it's taken care of now. The episodes prior to that were super uncomfortable though, went up to 240 bpm at one point
Did some of your episodes last for 1 or 2 or more hours? Are you over 50 years old? I ask because that's my situation, or was, I had an ablation done a few days ago. I'm over 58 yrs old. Prior to my 50's, I rarely had SVT episodes. In my late 50's, or starting a couple of years ago, they slowly became more frequent and in the last 3-6 months were happening weekly!
@@SoapinTrucker I’m 19 years old and have had this since about 12 years old. My heartbeats goes up to 228 bpm. Can last up to about an hour or so
I wish i have money to undergo ablation. Its been 10years i lived with svt and it really changed my life negatively. I am happy for you.
@@goodmantv260 you dont have insurance?
Such an informative video. Thank you so much!
I was diagnosed with SVT when I was 14 and had an ablation. I felt amazing afterwards for two months. Then problems came back and here I am ten years later with IST and POTS. 🥴 tbh though I’d rather have pots than svt. Every episode with svt I thought I was going to literally die. With pots I just feel like crap a lot! 😂
I have had those episode since 2021, I didn't know what was happening to me until my heart went out of control, I instinctively take a deep inhale and exhale I feel that exercise really helps to slow down my heart bit .
Are you better now?
Really helpful.. thank you Sir 🙏❤️
Thank you for a great video! well explained. But isn't AV nodal reentrant tachycardia the most common regular supraventricular tachycardia? :)
presentation celariy explains the mechanism of supra VF arrhythmias. Easy to understand. Thanks.
Amazing, thank you very much 🙏🏼
Cant find enough words to describe how its usefull.thanks so much❤
probably the one of the simplest and in detailed video on SVT made with all details and easy to understand even for a layman. Thanks. A new subscriber :)
Thankyou, 35yo male here from Australia. I am on Apixiban, Verapamil, flecanide and two types of anti reflux medication. I have a loop implant and was dx with Paroxsysmal Afib. In 2018/2019. I find i am often short of breath under no load or short of breath under a load. And then sometimes i find i am not short of breath under either of the above. I have controlled hypertension and and also restricted blood flow to both my feet at times the feel like ice block even on a hot summers day . I often experience a rapid heart rate over 120 or above 100. The last highest rapid rate i captured was @ 159bpm but usually will be 125 to 139bpm. Thankyou.
Please do more videos on ECGs.
that is my plan for the next few weeks
@@ZeroToFinals Thank you! That is wonderful. I like the way you teach the concepts.
@@ZeroToFinals The hero we need, but not the hero that we deserve.
I really loved your explanation so clear and useful thank you so much 🙏🙏🙏
This was so well done!! Thank you :)
Great to hear!
This is the best video ever. Thank you.
I can't believe you make this so EASY.... Really good work and cool accent. Greeting from Honduras..!!
Thanks!
This was so helpful thank you! I’m a paramedic & had an episode of SVT myself ( rate of 260 and super symptomatic! Luckily a valsalva manoeuvre worked amazingly), I caught it and reported it to my GP as I have a family history of heart conditions, my GP completely disregarded it by stating ‘all tachycardia’s are SVT’. This has validated my concerns for his statement and flippancy and I’ll definitely be trying again to get some investigations!
have had 2 stress tests and 3 holtor monitors, recent for 3 days, and many ecgs. i get svt a few times a day but only for a few seconds most times and can be 5 mins but not often. highest 130. my cardiologist and other doctors said it was harmless and i don't need treatment, i am on beta blockers 40mg though. but it scares me that it is so often. i also feel my heartbeat constantly but nothing was caught during that. do you think i should ge more opinions?
you need to have 24 hour holter monitoring -that will give a definitve diagnosis.
@@rumit9946 had a 3 day monitor and I have frequent svt but only a few seconds
@@hollymayjones12345 I'm sure they would have tested you for other things like thyroid disease, electrolytes especially magnesium and lifestyle factors , too much coffee, stress etc
Taking a magnesium supplement even if you have normal magnesium levels is sometimes helpful in reducing symptoms
Amazing tutorial, thank you!
Thanks, glad you like it!
Superb explanation....Superb team work!!!
Excellent video! Well done!
Thank you for giving Excellent explanation
Helped me understand my diagnosis. Thanks.
You have made it absolutely easy
Thank you for explaining so nicely 👌👍
Great explanation..keep up the good work
Thank you for this SVT refresher.
Thank you so much for very very simple and very nice explanation.
Thank you, very informative and easy to understand, you have helped my revision. 👍
Thank you for being so helpful!
Great video, especially the illustration with the ablation
Very good explanation..Easy to understand
So beautiful. Thank you.
Excellent video. Your hardwork is much appreciated. Do you know when your O&G book will be on audible please?
In production now - it depends how long it takes to record (probably a few weeks) and how long it takes to get approved by Audible (can be a few months). Thanks for your enthusiasm for the audiobook!
@@ZeroToFinals excellent! I have the other two so looking forward to this one
One of the best explication!!! Very good
Thanks to you I finally understand my diagnosis! Thank you. Now I just need to get over my fear of getting the ablasion.
Did you get you me ablation?
@@isaiahdrake1132 Not yet. It was suggested about 15 years ago or more but I was afraid
@@EmpAtheist same.. postponing it since 11 years.. but has a bad episode the other day.. and got an appointment for ablation 10 days from now. I am freaking out.
@@equaljustice8 did u do the ablation?
The worse part of ablasion was the backache from being still afterwards, feeling so much better now. Piece of cake after open heart with double mechanical valve replacement ❤ best wishes..but you are tougher than you think !!😊
This video is awesome! Thank you so much!
This guy is just the best, watched a bunch of videos on youtube but there yet to be a better explanation than this
Thanks!