Anesthesia, General; Aortic Valve Stenosis/surgery; Catheterization, Peripheral; Conscious Sedation; Femoral Artery; Nerve Block; Transcatheter Aortic Valve Replacement; Aged; Aged, 80 and over; Anesthesia, General/adverse effects; Anesthesia, General/mortality; Aortic Valve Stenosis/diagnostic imaging; Aortic Valve Stenosis/mortality; Catheterization, Peripheral/adverse effects; Catheterization, Peripheral/mortality; Conscious Sedation/adverse effects; Conscious Sedation/mortality; Databases, Factual; Electronic Health Records; Female; Humans; Length of Stay; Male; Nerve Block/adverse effects; Nerve Block/mortality; Operative Time; Patient Readmission; Punctures; Quality of Life; Registries; Retrospective Studies; Risk Assessment; Risk Factors; Time Factors; Transcatheter Aortic Valve Replacement/adverse effects; Transcatheter Aortic Valve Replacement/mortality; Treatment Outcome