WPW
Wolf Parkinson White (also jokingly known as Wilfred Hyde White syndrome, but you need to be of a certain age to apprecaite the pun) can very often be treated very successfly by cardiac ablation.
The CAA test will be ECG based and quite possibly 24 holter tapes where your heart is monitored and recorded on a small tape carried like a walkman. With OK test results, a Class 1 should be feasible.