| AP | Action Potential |
| AF | Atrial fibrillation |
| ATX-II | Anemone toxin II |
| CaM | Calmodulin |
| CaMK | Calmodulin Kinase |
| DAD | Delayed Afterdepolarization |
| DCM | Dilated Cardiomyopathy |
| EAD | Early Afterdepolarization |
| NCX | Na+/Ca2+ exchanger |
| NKA | Na+/K+-ATPase |
| SGK | Serum- and Glucocorticoid-Inducible Kinase |
| SSI | Steady State Inactivation |
| TTX | Tetrodotoxin |
| VGSC | Voltage Gated Sodium Channel |