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| In-hospital adverse event | Group O (n = 35) n (%) | Group C (n = 266) n (%) | P value |
|---|---|---|---|
| TIA | 0 (0) | 3 (1.1) | 0.528 |
| Stroke | 1 (2.9) | 6 (2.3) | 0.824 |
| Mortality | 0 (0) | 3 (1.1) | 0.528 |
| MI | 0 (0) | 2 (0.8) | 0.607 |
| Cranial nerve injury | 1 (2.9) | 12 (4.5) | 0.651 |
| Hematoma | 0 (0) | 4 (1.5) | 0.465 |
MI: myocardial infarction; TIA: transient ischemic attack
