A nurse or technician places several large patches called electrodes on your chest. The electrodes connect to a cardioversion machine (defibrillator) using wires. The machine records your heart rhythm and delivers shocks to your heart to restore a normal heart rhythm.
What are the after effects of cardioversion?
After the procedure, you may have redness, like a sunburn, where the patches were. The medicines you got to make you sleepy may make you feel drowsy for the rest of the day. Your doctor may have you take medicines to help the heart beat normally and to prevent blood clots.
What is the success rate of cardioversion?
The success rate of cardioversion with atrial fibrillation is generally better than 90 percent. Chances of success are lower when the atrial fibrillation has been present for more than several months or when the left atrium is very enlarged.
How serious is a cardioversion?
A cardioversion is usually a safe procedure, and serious problems are unlikely. There is a small risk of blood clots that may travel from your heart to your body. Your medical team will be aware of this, and they’ll give you blood thinning medication to help prevent this from happening.
What are the side effects of having your heart shocked?
Some other risks are:
- Other less dangerous abnormal rhythms.
- Temporary low blood pressure.
- Heart damage (usually temporary and without symptoms)
- Heart failure.
- Skin damage.
- Dislodged blood clot, which can cause stroke, pulmonary embolism, or other problems.
Has anyone ever died during cardioversion?
With serial cardioversion 90% of the patients were kept in sinus rhythm for 5 years. Univariate analysis showed that a long duration of arrhythmia and impaired cardiac function were both related to poor outcome. During follow up 3 patients died of progression of heart failure and another 5 died suddenly.
Is cardioversion a major surgery?
It uses medicines or low-energy electrical shocks to restore a normal heartbeat. Many times, cardioversion is an elective procedure. In some cases, it is an emergency treatment. But it’s not for everyone with an abnormal heartbeat.
Are you awake during electrical cardioversion?
You will go to sleep almost immediately and will be completely unaware of the procedure. The IV line may also be used to administer other medications needed during the procedure. Once the electrodes are in place and you are asleep, the defibrillator will be used to deliver a small shock to your heart.
How long does the procedure cardioversion take?
Cardioversion itself takes about 5 minutes. But the whole procedure, including recovery, will probably take 30 to 45 minutes. You may take an anticoagulant medicine before and after cardioversion.
What happens if electrical cardioversion doesn’t work?
Cardioversion may not work as well when an uneven heartbeat is caused by another heart disease, such as heart failure. If your symptoms bother you a lot, you may want to try cardioversion. But even if it works, you may still need to take blood thinners to prevent a stroke.
How long should you rest after cardioversion?
Resume normal activity after a week, but avoid any strenuous activities for 2 weeks, such as the gym. Do not drive for 2 days post procedure.
How long does a tee with cardioversion take?
The procedure usually lasts about 10 to 15 minutes.
Is shocking the heart painful?
You’ll be given medications through an IV to make you sleep during the procedure so that you won’t feel any pain from the shocks. You may receive other medications through the IV to help restore your heart rhythm.
Can electric shock hurt your heart?
A shock can cause cardiac arrest
If a current of 50 mA passes through the heart, it can cause cardiac arrest. The heart is also a muscle, which beats to pump blood through the body. The rhythm of our heartbeat is controlled by electric impulses—it is these impulses that are monitored by an electrocardiogram.