keywords Aged Aortic Valve Aortic Valve Stenosis Atrial Flutter Bioprosthesis Catheter Ablation Echocardiography, Doppler, Color Ehlers-Danlos Syndrome Electrodes, Implanted Heart Block Heart Valve Prosthesis Humans Male Mitral Valve Insufficiency Pacemaker, Artificial Postoperative Complications Tricuspid Valve Insufficiency