| Abbreviations | Meaning |
 | CCCU | Comprehensive Cardiac Care Unit |
 | VC | Variance Cardiography |
 | CD | Cardiac Disease |
 | CAPRI | Cardiopulmonary Research Institute |
 | BCS | British Cardiac Society |
 | ICI | Intracardiac Infection |
 | AVR | Unipolar Limb Lead On The Right Arm In Electrocardiography |
 | NCCI | Nervi Corpori Cardiaci Interni |
 | OHCA | Out-of-hospital Cardiac Arrest |
 | V | In Cardiography, Unipolar Chest Lead |
 | PROCAM | Prospective Cardiovascular Münster Study |
 | AEM | Ambulatory Electrocardiographic Monitoring |
 | CT | Cardiac Tamponade |
 | COR | Cardiac Output Recorder |
 | CRU | Cardiac Rehabilitation Unit |