Heart Failure (HF)Heart failure (HF)Conception : heart failure is a final common pathway for many cardiac disorders of diverse etiology and pathogenic mechanisms. It is a clinical syndrome, manifested as a result of the inability of the heart to match its output to the metabolic needs of the body even though the filling pressure of the heart is adequate.Categories of HF1.left,rightandwhole2.acuteandchronic3.systolicanddiastolicstage of HFA. Pre-heartfailureB. Pre-clincalheartfailureC. Clinicalhe