I was awake the whole time and though I was stressed initially to do it I found out it really wasn't any worse than getting an iv put in so really quite an easy procedure
for the patient most of the time. There are risks
to doing it as with any medical procedure
but I believe for most typical run of the mill congenital svts the complication rate is like 2%. So very low risk with a very high cure rate, especially if you have the most common type, avnrt.