Procedure mortality is approximately 3% , with most deaths due to failure of the procedure to control frequent, life-threatening VT.
Read moreWhen should I be concerned about ventricular tachycardia?
VT is defined as 3 or more heartbeats in a row, at a rate of more than 100 beats a minute. If VT lasts for more than a few seconds at a time, it can become life-threatening .
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