Hi Chuck - you are wise to become conversant with the various options for LAA occlusion or closure. Shannon is the expert in this area having had a leak from the Lariat ligation and then going for the Amplatzer cardiac plug. If you use the search feature here for the the words Lariat and Amplatzer, I believe he posted details.
While I haven't tried to find studies or comments by EPs stating the historical results of those methods as well as the Watchman device indicate... such as after 5 years in place, no complications.... my paranoia on having anything implanted in my body stems from what happens, long term, such as 10 or 20 years later. Obviously, that's not available. I also worry about bio-compatibility with materials used in implantable devices and the risk of reactions or hypersensitivities.... as as found in hip replacement materials... although certainly there is more material exposure in hip than heart. I'd want to know the material used in any device... again - my paranoia.
I believe I recall that Shannon said the Amplatzer plug becomes engulfed with tissue so it's embedded permanently which was more reassuring to me regarding the risk of potential migration that has been my concern.
I'm not sure about details on whether insurance or Medicare would cover any of these as I am not actively pursuing the potential but if for some reason I become intolerant to the anticoagulants and if it could be done safely at my age, I'd consider it eventually. Here's a link published by Blue Cross that describes the various options for occluding the LAA... there are probably others as well. [
www.bcidaho.com]
I'm sure there are many cardiology reports that go into more detail with current findings.
Looking forward to your posts on what you learn.
Best to you,
Jackie