Looking up the heart condition I was born with on wikipedia randomly...
While the vast majority of individuals with a bundle of Kent remain asymptomatic throughout their entire lives, there is a risk of sudden death associated with the syndrome. Sudden death due to WPW syndrome is rare (incidence of less than 0.6%[3][4]), and is due to the effect of the accessory pathway on tachyarrhythmias in these individuals.
Wow. I never knew that before. Damn you wikipedia for being the bearer of craptastic news!
(it's all good, though!)
link:
http://en.wikipedia.org/wiki/Wolff-Parkinson-White_syndrome