Coronary sinus blood flow (CSBF) changes in patients undergoing percutaneous transluminal coronary angioplasty (PTCA) with stenting
| Parameters | CSBF <300 mL/min (n=24) | CSBF >300 mL/min (n=20) | ||||
|---|---|---|---|---|---|---|
| Before PTCA | After PTCA | p Value | Before PTCA | After PTCA | p Value | |
| Ejection fraction (%) | 47.33±5.92 | 49±6.2 | 0.1778 | 53.6±4.4 | 54.5±4.43 | 0.296 |
| Diameter (mm) | 6.4±1.2 | 7.1±1.7 | 0.064 | 8.6±0.68 | 9.32±1.32 | 0.183 |
| VTI (cm) | 18.5±3.2 | 20.2±3.19 | 0.02 | 21.8±4.55 | 23±3.74 | 0.868 |
| Peak velocity (m/s) | 0.43±0.05 | 0.49±0.08 | 0.18 | 0.5±0.12 | 0.67±0.09 | 0.172 |
| Peak gradient (mm Hg) | 0.76±0.25 | 1.014±0.33 | 0.17 | 1.1±0.43 | 1.77±0.48 | 0.203 |
| Mean velocity (m/s) | 0.25±0.06 | 0.33±0.05 | 0.07 | 0.29±0.08 | 0.41±0.07 | 0.181 |
| Mean gradient (mm Hg) | 0.34±0.08 | 0.47±0.15 | 0.136 | 0.45±0.14 | 0.69±0.19 | 0.16 |
| CSBF per beat (mL) | 3.06±1.12 | 4.2±1.80 | 0.038 | 6.28±1.75 | 7.27±1.56 | 0.256 |
| CSBF per minute (mL/min) | 231.33±70.68 | 308.20±121.32 | 0.042 | 403±71.02 | 478.75±86.01 | 0.09 |
VTI, velocity time interval.