Table 3. Characteristics of acetylcholine provocation test in patients with significant coronary artery spasm.
| Variables, n (%) | NTN (n=118) | HTN (n=245) | P-value |
|---|---|---|---|
| Maximal tolerable dose of acetylcholine | |||
| A1 (20 μg min−1) | 11 (9.3) | 18 (7.3) | 0.516 |
| A2 (50 μg min−1) | 63 (53.4) | 140 (57.1) | 0.500 |
| A3 (100 μg min−1) | 44 (37.3) | 87 (35.5) | 0.741 |
| Spasm types | |||
| Focal | 14 (11.9) | 40 (16.3) | 0.263 |
| Diffuse | 104 (88.1) | 205 (83.7) | 0.263 |
| Spasm vessel number | |||
| One vessel | 58 (49.2) | 122 (49.8) | 0.909 |
| Multivessel | 60 (50.8) | 123 (50.2) | 0.909 |