Combined assessment of myocardial damage and electrical disturbance in chronic heart failure

Figure 1 Relationship between QRS duration and heart-type fatty acid binding protein levels (A) and brain natriuretic protein levels (B). BNP: Brain natriuretic peptide; H-FABP: Heart-type fatty acid-binding protein.

Figure 2 Cardiac mortality and all cardiac events among the four groups based on heart-type fatty acid-binding protein level and QRS duration. Normal group (n = 136), H-FABP ≤ 4.5 ng/mL and QRS duration < 120 ms; QRS prolongation group (n = 20), H-FABP ≤ 4.5 ng/mL and QRS duration ≥ 120 ms; high H-FABP group (n = 125), H-FABP > 4.5 ng/mL and QRS duration < 120 ms; and high H-FABP + QRS prolongation group (n = 41), H-FABP > 4.5 ng/mL and QRS duration ≥ 120 ms. H-FABP: Heart-type fatty acid-binding protein.

Figure 3 Hazard ratios relative to the normal group after adjustment for age, New York Heart Association functional class, brain natriuretic peptide level and estimated glomerular filtration rate. ^aP < 0.05, ^bP < 0.01 vs normal group. H-FABP: Heart-type fatty acid-binding protein.

Figure 4 Kaplan-Meier analysis of the cardiac event-free curve in patients with chronic heart failure, who were stratified into four groups based on QRS duration and heart-type fatty acid-binding protein level. H-FABP: Heart-type fatty acid-binding protein.