Intracoronary pressure measurements
| All patients (n = 33) | Good STR (n = 22) | Poor STR (n = 11) | p Value | |
|---|---|---|---|---|
| Values are mean (SD). | ||||
| CWP, coronary wedge pressure; CFIp, pressure derived collateral flow index; FFRmyo, myocardial fractional flow reserve; Pa, proximal aortic pressure; Pd, distal aortic pressure; Pv, central venous pressure; STR, ST segment resolution (good, ⩾50%; poor, <50%). | ||||
| Pa, pre-stent, basal (mm Hg) | 85.3 (10.1) | 82.2 (9.4) | 86.4 (10.1) | NS |
| Pa, pre-stent, hyperaemic (mm Hg) | 87.3 (10.4) | 88.9 (11.5) | 86.4 (9.5) | NS |
| Pa, post-stent, basal (mm Hg) | 88.3 (9.2) | 87.8 (9.8) | 89.6 (10.6) | NS |
| Pa, post-stent, hyperaemic (mm Hg) | 89.4 (8.8) | 90.1 (10.1) | 88.2 (11.2) | NS |
| Pd, pre-stent, basal (mm Hg) | 69.4 (8.5) | 67.3 (9.4) | 70.2 (10.4) | NS |
| Pd, pre-stent, hyperaemic (mm Hg) | 53.5 (9.2) | 51.2 (10.2) | 53.4 (9.8) | NS |
| Pd, post-stent, basal (mm Hg) | 84.3 (8.0) | 83.2 (9.2) | 81.2 (10.2) | NS |
| Pd, post-stent, hyperaemic (mm Hg) | 83.2 (8.8) | 80.4 (9.3) | 84.8 (10.1) | NS |
| FFRmyo, pre-stent | 0.60 (0.10) | 0.58 (0.09) | 0.61 (0.11) | NS |
| FFRmyo, post-stent | 0.92 (0.12) | 0.91 (0.11) | 0.92 (0.12) | NS |
| Pv (mm Hg) | 6 (2) | 8 (3) | 7 (3) | NS |
| CWP (mm Hg) | 27.2 (11.3) | 18.2 (9.5) | 28.2 (10.1) | <0.02 |
| CFIp | 0.25 (0.12) | 0.18 (0.07) | 0.27 (0.10) | <0.02 |