Conceptualization and Working Definition of Heart Failure
Additional Definitions
HF is often classified as HF with reduced systolic function versus HF with preserved systolic function. Myocardial remodeling often precedes the clinical syndrome of HF. Additional definitions are provided in Table 2.1. A table of acronyms and their meaning is provided in Appendix B.
Table 2.1: Additional HF Definitions
| "HF With Reduced Left Ventricular Ejection Fraction (LVEF)" Sometimes: "HF With a Dilated Left Ventricle" | A clinical syndrome characterized by signs and symptoms of HF and reduced LVEF. Most commonly associated with LV chamber dilation. |
| "HF With Preserved LVEF" Sometimes: "HF With a Nondilated LV" | A clinical syndrome characterized by signs and symptoms of HF with preserved LVEF. Most commonly associated with a nondilated LV chamber. May be the result of valvular disease or other causes (Section 11). |
| "Myocardial Remodeling" | Pathologic myocardial hypertrophy or dilation in response to increased myocardial stress. These changes are generally accompanied by pathologic changes in the cardiac interstitium. Myocardial remodeling is generally a progressive disorder. |