Coronary flow velocity data
| Group A | Group B | ||||||
|---|---|---|---|---|---|---|---|
| Stent group (n=13) | Balloon group (n=32) | Stent group (n=111) | Balloon group (n=100) | ||||
| DS before BA (%) | 76 (7) | 69 (11) | 68 (10)3-151 | 68 (11) | |||
| DS after BA (%) | 23 (8) | 23 (7) | 22 (10) | 21 (8) | |||
| DS after stenting (%) | 7 (9) | – | 8 (8) | – | |||
| CFVR before BA | 1.29 (0.32)3-150 | 1.55 (0.52) | 1.64 (0.61) | 1.64 (0.60) | |||
| CFVR after BA | 2.04 (0.59)3-150 | 2.65 (0.95) | 2.50 (0.74) | 2.50 (0.73) | |||
| CFVR after stenting | 2.33 (0.87) | – | 2.88 (0.30)3-151 | – | |||
| RCFVR before BA | 0.57 (0.21) | 0.57 (0.19) | 0.60 (0.25) | 0.58 (0.21) | |||
| RCFVR after BA | 0.86 (0.17) | 1.00 (0.28) | 0.89 (0.27) | 0.89 (0.27)3-151 | |||
| RCFVR after stenting | 0.97 (0.24) | – | 1.02 (0.30) | – | |||
| Reference CFVR | 2.43 (0.71)3-150 | 2.83 (0.81) | 2.91 (0.78)3-151 | 2.90 (0.75) | |||
Values are mean (SD).
↵3-150 p < 0.05 v balloon group A;
↵3-151 p < 0.05v same subgroup in group A.
BA, balloon angioplasty; CFVR, coronary flow velocity reserve; DS, percentage diameter stenosis; group A, patients with moderate dissections; group B, patients with no or minimal dissection; RCFVR, relative CFVR.