What is it? Overview Usage Side Effects and Warnings

Cardioversion Side Effects and Warnings

Written by ColleenO, FoundHealth.

Possible Complications

If you are planning to have cardioversion, your doctor will review a list of possible complications, which may include:

  • Inability to stop the abnormal rhythm
  • Abnormal rhythm is resumed after a normal rhythm was established
  • Development of a more dangerous dysrhythmia
  • Damage to the heart muscle
  • Blood clots introduced into your circulation, leading to such complications as stroke or damage to your organs
  • Burning or irritation to the skin of the chest where the paddles or electrodes are applied

Call Your Doctor

After you leave the hospital, contact your doctor if any of the following occurs:

  • Blisters, redness, or open sores on your chest
  • Confusion, lightheadedness, or dizziness
  • Sensation of your heart fluttering (palpitations)
  • Sensation of a skipped or missed hearbeat, or an irregular pulse
  • Cough, difficulty breathing, shortness of breath
  • Severe nausea or vomiting
  • Chest pain or pain in your left arm or jaw
  • Pain in your abdomen, back, arms, or legs
  • Blood in your urine
  • Changes in vision or speech
  • Difficulty walking or using your limbs
  • Drooping facial muscles

In case of an emergency, CALL 911.



Posted 8 years ago

Cardioversion works on some people and others it doesn't... I have had three cardioversions all three worked initially (all three put my heart back in rhythm, but two went back out. I just had the third cardioversion three days ago and I have had more side effects this time (paddle burns, coughing and shortness of breath). I have also had a 6 1/2 hour cardiac ablation procedure which worked initially, but again my heart has gone back into atril flutter. I have had good luck with Tikosyn, but it has to be administered in the hospital and is very dangerous with lots of side effects.

My advice is to get a Cardiologist that you have confidence in and listen to him and do your own research.

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Posted 5 years ago

Just going to throw this out there. My father 8 weeks ago had a cardio version. He is very healthy and runs circles around all of us. He is 89. Almost immediately AFTER THE CARIDOVERSION we noticed him being agitated and repeating...asking if he did this or that. forgetful...I absolutely attribute that to the recent cardio version. No doubt in my mind!!!! Just in case someone else see this problem. It can happen I have read but not as common.

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Posted 5 years ago

I have had about 5 cardioversions. After one of them I had burns on my chest and was told that the doc had to increase the voltage 3 times before I was shocked back into rhythm. After that cardioversion I experienced an elliptical ring of bright shimmering, diamond like lights around each viewing area in each eye. This lasted for three days. Later I found that my pituitary had failed. Could this be related??? Anyone else experience this?

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Posted 3 years ago

Just had my 2nd l1st lasted 8 months second was not knock out and was painfull got burns chest an back believe Dr. F---k up ist one never felt a thing

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