Table 5.
Angiographic Characteristics in VAMI and Non‐VAMI Patients
| Variable | Non‐VAMI (n=905) | VAMI (n=81) | P Value |
|---|---|---|---|
| Spasm‐positive vessel | |||
| LM or LAD | 345 (38.1) | 43 (53.1) | 0.009 |
| LCx | 178 (19.7) | 11 (13.6) | 0.24 |
| RCA | 446 (49.3) | 34 (42.0) | 0.25 |
| Type of spasm | 0.61 | ||
| Diffuse | 265 (29.3) | 21 (25.9) | |
| Focal | 640 (70.7) | 60 (74.1) | |
| Spontaneous spasm | 21 (2.3) | 2 (2.5) | 0.71 |
| Myocardial bridging | 17 (1.9) | 1 (1.2) | 1.00 |
| ST‐segment change | 0.33 | ||
| No change | 310 (34.3) | 24 (29.6) | |
| ST‐segment elevation | 492 (54.4) | 52 (64.2) | |
| ST‐segment depression | 76 (8.4) | 4 (4.9) | |
| T wave inversion | 27 (3.0) | 1 (1.2) | |
| TIMI flow grade | 0.60 | ||
| TIMI flow grade 0 to 1 | 663 (73.3) | 57 (70.4) | |
| TIMI flow grade 2 to 3 | 242 (26.7) | 24 (29.6) | |
| Fixed coronary stenosis on spasm‐positive vessel | 0.39 | ||
| 0% to 30% | 661 (73.1) | 59 (72.9) | |
| 30% to 50% | 178 (19.7) | 17 (21.0) | |
| 50% to 70% | 66 (7.3) | 5 (6.2) | |
Values are n (%). LAD indicates left anterior descending; LCx, left circumflex; LM, left main; RCA, right coronary artery; TIMI, Thrombolysis in Myocardial Infarction;VAMI, vasospastic angina presenting with myocardial infarction.