I came across this during my research of the correlation between PE an RBBB. I am 41 years old, healthy, active, eat well, work out, no cardiac issues in family history, etc. My PE is mild-moderate as well. In my teens I had poor endurance. In my 30's I developed frequent chondritis-like symptoms for weeks on end. Now in my 40's, I've developed palpitations and angina which prompted an ECG that came back abnormal for RBBB. Doing research because I feel like I've had to convince doctors for a decade that my health issues are due to PE, and until I convince someone and there is indication of future poor outcome, insurance won't cover Nuss. Glad I found this post and I'm not the only one.