I've honestly never heard of it but now I want to know so I will do some research on it. I hope you feel better.
I just read a research paper on it. It was SO complicated, but the best I could conclude was that they thought whether or not you have conduction block, the disease/disorder/condition is still the same. VERY small sampling, 35 patients maybe, and you know why: it's a rare condition. I've never known anyone before you with it. Good luck.