Clinical outcomes of combined flow-pressure drop measurements using newly developed diagnostic endpoint: Pressure drop coefficient in patients with coronary artery dysfunction

Figure 1 Comparison of % major adverse cardiac events in fractional flow reserve and pressure drop coefficient groups. MACE: Major adverse cardiac events; FFR: Fractional flow reserve; CDP: Pressure drop coefficient.

Figure 2 Comparison of patient conditions between fractional flow reserve and pressure drop coefficient groups at follow-up. A: FFR < 0.75 and CDP > 27.9; B: FFR > 0.75 and CDP < 27.9; C: FFR < 0.80 and CDP > 25.4; D: FFR > 0.80 and CDP < 25.4. FFR: Fractional flow reserve; CDP: Pressure drop coefficient.

Figure 3 Survival curves. A: FFR < 0.75 and CDP > 27.9 groups (P = 0.048); B: FFR < 0.80 and CDP > 25.4 (P = 0.066); C: FFR > 0.75 and CDP < 27.9 groups (P = 0.29); D: FFR > 0.80 and CDP < 25.4 (P = 0.09). FFR: Fractional flow reserve; CDP: Pressure drop coefficient.