| WDHR | Western Danish Heart Registry |
| SKS | Aortic root replacement |
| CPR | Sundhedsvaesenets Klassifikations System |
| CABG | Coronary artery bypass grafting |
| TAA | Thoracic aortic aneurism |
| AR | Aortic regurgitation |
| PPV | Positive predictive value |
| POAF | Postoperative atrial fibrillation |
| NYHA | New York Heart Association |