“…End points vary from composite cardiac measures to both heart failure–specific and all‐cause readmissions within 30 days to durations of ≥6 months, with inconsistent study designs (ie, ambulatory or ADHF). Studies include evaluations of clinical parameters such as angina, low systolic blood pressure, edema levels, elevated jugular venous pressure, age, depressive symptoms, and the presence of coronary heart disease and pacemakers 13. Serum biomarkers have received the most attention, as simple objective measurements that can be and are routinely performed at admission, such as BNP,14, 15, 16 blood urea nitrogen,17, 18 hemoglobin and hematocrit,19 cystatin,15 and cardiac troponin 15.…”