Cardioversion (Electrical) Procedure, Animation
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- Опубліковано 4 гру 2022
- What is cardioversion? How it works? How it’s done? Cardioversion vs Defibrillation, Possible Complications.
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Electrical cardioversion, or simply cardioversion, is a medical procedure that uses electrical shocks to treat abnormal heart rhythms (arrhythmias), in particular tachycardias. The procedure is done by delivering a brief current across the chest, through a pair of manual paddles or adhesive “hands-free” patches.
Cardioversion is different from defibrillation. Defibrillation is an emergency procedure that uses non-synchronized, high-energy shocks to treat cardiac arrest patients. Cardioversion, on the other hand, is often an elective procedure delivering a lower-energy shock that is synchronized to a certain stage of the cardiac cycle.
The heart is essentially a muscle that contracts and pumps blood. Contractions of the heart muscle are coordinated by electrical impulses that are initiated in the heart’s natural pacemaker - the SA node. The firing frequency of the SA node determines the heart rate. The signals from the SA node spread through the cardiac conduction system in a synchronized manner to produce regular heartbeats.
Arrhythmias occur when abnormal electrical circuits override the normal conduction. Common abnormal rhythms are either initiated from ectopic sites outside the SA node, or caused by an electrical impulse that travels around in a localized self-perpetuating loop, called a re-entrant pathway.
Cardioversion depolarizes the bulk of cardiac muscle simultaneously, disrupting the abnormal electrical circuits, allowing the heart’s pacemaker to regain control and restore normal rhythms. The delivery of the shock is synchronized to the QRS complex, which represents ventricular depolarization. This timing is critical to prevent the R-on-T phenomenon, which could put the patient into cardiac arrest.
Electrical cardioversion is most effective in treating arrhythmias that arise from a single reentrant circuit such as atrial flutter, AV nodal reentrant tachycardia (AVNRT), or atrioventricular reentrant tachycardia (AVRT). Arrhythmias that result from multiple circuits typically require higher-energy shocks to be treated successfully.
Cardioversion is often scheduled in advance as an elective procedure, but it can also be used as an emergency treatment for patients who still have a pulse but are hemodynamically unstable. Stable patients with arrhythmias are usually treated with medications first, in a process known as chemical or pharmacological cardioversion.
During electrical cardioversion, the patient is sedated. The defibrillator is set to “synchronize” mode and R-waves are tracked. A brief electrical current is sent, during the time of an R-wave, through two electrode patches or paddles placed on the chest, one on each side of the heart. The result should be immediate. If the first attempt is unsuccessful, subsequent higher-energy shocks may be performed. The procedure itself takes only a few minutes.
Though uncommon, several complications may occur with cardioversion:
- The procedure can either cause a new blood clot to form, or a pre-existing clot, such as in patients with atrial fibrillation, to dislodge and travel to the brain, resulting in stroke. Use of a blood thinner before cardioversion can reduce this risk.
- Cardioversion can sometimes lead to development of a new arrhythmia. This typically occurs a few minutes after the procedure, in which case medications or additional shocks can be given as a remedy.
- Other complications are related to sedation, skin burns at the site of contact with the electrodes, and rarely, heart tissue damage due to high-energy or repeated shocks.
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Your animations did justice to the explanation.
Finally an explanation that I've understood
Finally someone has explained this process. Thanks Alila !
Excellent. Very well explained.
Thank you. I am having this done tomorrow
Awesome video … I was so lost until I found this video.
Thanks for the lecture
Thanks...Alila medical media
Thank you for this video
Excellent and very helpful.
Thanks for helping me understand
Million coming sooooopn❤️❤️
I had this done 4 times in under a year for AFib. Cardiologist won't do anymore due to other health issues, heart ablation is next option
I truly hope it works for you 👍😊 I've meet a few people who had great success with ablation, but I'm afraid to say I'm not one of them, I've had two ablations and neither stuck..
@@stevecam724😅😅
@sueklimes6111
Im 66, ive been an athlete my whole life, just had a cardioversion on 2/7/24.
I discovered I had afib in 2018, had a cardioversion, didn’t work.
Then weeks later had an ablation, next day went back into afib, the following week had a cardioversion again and I was good until January 4,2024- 5 years.
I believe the following helps a lot- stay hydrated, eat smaller meals, keep down stress, watch alcohol and too much caffeine/ coffee.
Кофе, чай, кока - кола и даже шеколад, всё в чом находится кофеин, может вызывать аритмию, лучше отказаться совсем.
I have a pace maker but had and irregular Heart beat had my Cardioversion this morning . Everything went well feel a little different for the better . For how long this will work just to be normal no telling. Everyone has their on fate.
My father also have pacemaker. How do you feel now after cardioversion? Did the cardioversion ruin the pacemaker or it is still ok? My father have atrial fib thats why he had the pacemaker placement.
I've had 5 cardioversion in one year and not once did it pull me out of Afib. I've had two ablations, one for Afib, one for Flutter, and they didn't take. The side effects of the meds is getting so bad we are talking about coming off them. 64 years old and I live in an almost constant state of Afib/flutter. Thinking the end of the lines not that far away 💩💩💩
Sorry to hear that... wish your good health
I’m very sorry to hear those things haven’t worked. My cardioversion worked and lasted about two years. Wishing you the best and more time to cherish your life.
I don't like the medicine they gave me the medicine they gave me made me feel worse i thought medicine is supposed to make you feel good but mine doesn't the medicine makes me feel bad
PLEASE ONE VIDEO ABOUT PACEMAKER!!
does it fix it completely?
When I had my first cardioversion I was just 16 years old and I went to the ER and the ER doctor said I was in SVT my pulse was 285 and plus I have a pacemaker well when the ER doctor mentioned me getting my heart shocked and my mom SPAZZED and she told the ER doctor YOU CAN'T SHOCK HIS HEART HE HAS A PACEMAKER AND IT WILL KILL HIM the ER doctor calmly said Mrs McAlister we do this all the time in patients with pacemakers he's gonna be just fine now here's the consent form sign it and we're gonna zap his chest then he's gonna go home right after
Hey ..long time no see
♥️♥️♥️. ...
I need to have this done in a week to get my heart back in sync. Anyone who has had it done, or familiar with it please let me know if I should be frightened. I'm 57 and never had one medical issue ever
How did it go?
@@suzyb7718 I feel incredible. Never realized how bad i was. Just thot i was out of shape for last 2 years and after cardioversion, its easier to breathe, have more energy. Got so used to feeling the way i did, i thot it was normal until now.
@@vincekuznicki7111 Woo! Really happy for you 😄
@@suzyb7718 thanks so much!! Nice to know there are still compassionate empathetic people on the planet. We need more. Thank you again, wish you all the happiness in the world
I had one done in October and can’t believe how much better I feel. It is easier to breathe and I can walk further without running out of breath. I am 70 and should have had it sooner. Good luck
💪🏻💪🏻💪🏻💪🏻💪🏻💪🏻
Fixed me for one week then back to irregular. Damn.
Basically a cardioversion is in the words of Metallica you "ride the lightning" cuz when you get a cardioversion you get a shock to the chest sort of like the electric chair