Table 2.
Angiographic and hemodynamic characteristics.
| Non Diabetic (N = 87) | Diabetic (N = 21) | Total (N = 108) | p | |
|---|---|---|---|---|
| DS (%) | 21.29 ± 14.36 | 27.48 ± 17.40 | 22.49 ± 15.11 | 0.130 |
| FFR | 0.84 [0.79–0.88] | 0.82 [0.80–0.86] | 0.83 [0.79 – 0.87] | 0.380 |
| Qrest (mL/min) | 71.62 [56.42–88.71] | 78.62 [67.29–99.60] | 71.87 [56.44, 89.56] | 0.254 |
| Qrest−N (mL/min) | 77.58 [63.11, 96.96] | 85.64 [72.97, 107.26] | 79.00 [63.86, 100.66] | 0.255 |
| Rμ−rest (WU) | 1135.14 [894.96, 1409.12] | 977.53 [848.74, 1233.42] | 1107.99 [890.79, 1407.79] | 0.304 |
| Qhyp (mL/min) | 199.24 [162.69, 264.44] | 199.28 [141.02, 243.77] | 199.26 [156.47, 255.37] | 0.350 |
| Qhyp−N (mL/min) | 249.53 [199.07, 310.19] | 229.90 [164.92, 285.47] | 247.56 [196.97, 303.35] | 0.478 |
| Rμ−hyp (WU) | 361.93 [299.51, 436.06] | 390.07 [327.10, 450.22] | 371.36 [301.57, 444.33] | 0.507 |
| CFR | 2.88 ± 0.82 | 2.38 ± 0.61 | 2.78 ± 0.81 | 0.006 |
| MRR | 3.48 ± 1.02 | 2.79 ± 0.87 | 3.34 ± 1.03 | 0.004 |
| CFR <2.5 | 30 (34.5%) | 14 (66.7%) | 44 (40.7%) | 0.012 |
| Repi (WU) | 73.24 [46.52, 103.23] | 82.04 [63.64, 113.85] | 74.10 [47.75, 105.96] | 0.176 |
| Rtot (WU) | 434.20 [354.33, 536.08] | 466.69 [412.94, 562.77] | 456.89 [365.97, 537.31] | 0.236 |
Continuous variables are presented as mean ± SD or median [IQR].
DS, Diameter Stenosis; FFR, Fractional Flow Reserve; Qrest, Resting Flow; Qrest−N, Normalized Resting Flow (Qrest/FFR); Rμ−rest, Absolute Microvascular Resistance at Rest; Qhyp, Hyperemic Flow; Qhyp−N, Normalized Hyperemic Flow; Rμ−hyp, Absolute Microvascular Resistance; CFR, Coronary Flow Reserve; MRR, Microvascular resistance Reserve; Repi, Epicardial Resistance (= Pa − Pd)/Q); Rtot, Total Coronary Resistance (= Pa/Q).