Do the Occluders deserve blame? Two cases of severe thrombosis in the left atrium in patients with bioprosthetic mitral valves and percutaneously implanted occluders

We discuss two clinical instances of patients in the case report that follow valvular intervention and percutaneous occluder implantation into the left atrium. A 68-year-old male who was admitted to the department of cardiology with a non-ST-elevation myocardial infarction is the first patient (NSTEMI). He had a history of severe secondary mitral regurgitation, paroxysmal atrial fibrillation, and biological mitral prosthesis implantation...