Table 4.
Estimated intraoperative assessment of coronary flow reserve (CFR) using post-CPB/pre-CPB coronary flow velocities
| Diagnostic category | N | Overall (N = 69) | N | Shunt (N = 26) | N | Obstruction (N = 26) | N | TGA (N = 5) | N | SV (N = 12) | P value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| CFR LAD peak | 62 | 1.48 (1.14-1.77) | 26 | 1.41 (1.10-1.67) | 25 | 1.55 (1.14-1.86) | 3 | 1.20 (1.00-1.73) | 8 | 1.43 (1.23-1.84) | 0.69 |
| CFR LAD mean | 62 | 1.61 (1.15-2.00) | 26 | 1.52 (1.19-1.77) | 25 | 1.67 (1.25-2.16) | 3 | 1.36 (1.11-1.71) | 8 | 1.41 (1.29-1.68) | 0.72 |
| CFR RCA peak | 42 | 1.52 (1.25-1.81) | 13 | 1.73 (1.27-2.00) | 16 | 1.30 (0.89-2.00) | 4 | 2.16 (1.05-6.87) | 9 | 1.59 (1.48-1.82) | 0.53 |
| CFR RCA mean | 42 | 1.48 (1.05-2.00) | 13 | 1.65 (0.97-2.00) | 16 | 1.27 (0.93-1.62) | 4 | 2.02 (1.15-6.00) | 9 | 1.6 (1.31-2.13) | 0.29 |
Values depicted as median (IQR).
CPB, cardiopulmonary bypass; IQR, interquartile range; LAD, left anterior descending; RCA, right coronary artery; SV, single ventricle; TGA, transposition of the great arteries.