Description of patients with significant hemodynamic fluctuations
| Total | Control group (n=68) | Lidocaine group (n=68) | P value | DAVF | Others | P value | Middle meningeal artery | Others | P value | |
| HR decrease >20 (TCR) | 12 | 12 | 0 | <0.001 | 9 (75.0) | 3 (25.0) | 0.003 | 7 (58.3) | 5 (41.7) | 0.01 |
| HR decrease >20% with MAP decrease | 7 | 7 | 0 | 0.01 | 6 (85.7) | 1 (14.3) | 0.008 | 5 (71.4) | 2 (28.6) | 0.01 |
| HR decrease >20% with MAP increase | 5 | 5 | 0 | 0.07 | 3 (60.0) | 2 (40.0) | 0.43 | 2 (40.0) | 3 (60.0) | 0.79 |
| Solely MAP decrease >20% | 0 | 0 | 0 | 1.00 | 0 | 0 | 1.00 | 0 | 0 | 1.00 |
| Solely MAP increase >20% | 16 | 6 | 10 | 0.29 | 7 (43.8) | 9 (56.2) | 0.43 | 5 (31.3) | 11 (68.7) | 0.51 |
DAVF, dural arteriovenous fistula; HR, heart rate; MAP, mean arterial pressure; TCR, trigeminocardiac reflex.