@consuela72 Actually, this is not too uncommon. My heart was doing this at 153, EF around 30, for a long time before I went on metropolol tartrate. I now know it is a symptom of, among other things, various forms of Cardiac Amyloid LiteChair. The Bindings FreeLiteChain(c) assay is a good place to start. Also, it is not a valve problem, but a nerve and muscle issue. There may be other caukses, but I don't know of them.