| EECP | enhanced external counterpulsation |
| CHF | chronic heart failure |
| CAD | coronary artery disease |
| LV | left ventricle |
| EXCEL | Long-term Effects of enhanced eXternal CountErpuLsation |
| EF | ejection fraction |
| OMT | optimal medical therapy |
| HFrEF | heart failure with reduced ejection fraction |
| HFmrEF | heart failure with mildly reduced ejection fraction |
| MMI | myocardial mass index |
| PS | phase shift |
| SI | stiffness index |
| CASP | central aortic systolic pressure |
| rAI | radial augmentation index |
| IO | occlusion index |
| PPC | percentage of perfused capillaries |
| CRP | capillary recovery percentage |
| RI | reflection index |
| RCD | resting capillary density |
| VCE | vascular composite endpoint |
| OCE | overall composite endpoint |
| CABG | coronary artery bypass grafting |
| CKD | chronic kidney disease |
| NYHA | New York Heart Association |
| 6 MWT | 6 min walk test |
| GFR | glomerular filtration rate |
| AF | atrial fibrillation |
| DM | diabetes mellitus |
| PCI | percutaneous coronary intervention |
| CI | confidence interval |
| OR | odds ratio |
| AUC | area under the curve |
| CCI | Charlson Comorbidity Index |