Table 2.
Angiographic Characteristics of VAACS and Non‐VAACS Patients
| Variable | Non‐VAACS (n=837) | VAACS (n=149) | P Value |
|---|---|---|---|
| Spasm‐positive vessel | |||
| LM or LAD | 310 (37.0) | 78 (52.3) | 0.001 |
| LCx | 168 (20.1) | 21 (14.1) | 0.09 |
| RCA | 417 (49.8) | 63 (42.3) | 0.09 |
| Type of spasm | 0.12 | ||
| Diffuse | 251 (30.0) | 35 (23.5) | |
| Focal | 586 (70.0) | 114 (76.5) | |
| Spontaneous spasm | 18 (2.2) | 5 (3.4) | 0.37 |
| Myocardial bridging | 15 (1.8) | 3 (2.0) | 0.75 |
| ST‐segment change | 0.28 | ||
| No change | 288 (34.4) | 46 (30.9) | |
| ST‐segment elevation | 452 (54.0) | 92 (61.7) | |
| ST‐segment depression | 72 (8.6) | 8 (5.4) | |
| T wave inversion | 25 (3.0) | 3 (2.0) | |
| TIMI flow | 0.69 | ||
| TIMI 0 to 1 | 609 (72.8) | 111 (74.5) | |
| TIMI 2 to 3 | 228 (27.2) | 38 (25.5) | |
| Fixed coronary stenosis on spasm‐positive vessel | 0.28 | ||
| 0% to 30% | 613 (73.2) | 107 (71.8) | |
| 30% to 50% | 166 (19.8) | 29 (19.5) | |
| 50% to 70% | 58 (6.9) | 13 (8.7) | |
Values are n (%). LAD indicates left anterior descending; LCx, left circumflex; LM, left main; RCA, right coronary artery; TIMI, Thrombolysis in Myocardial Infarction; VAACS, vasospastic angina presenting with acute coronary syndrome.