TABLE 2:
Patients with changes in results of neurophysiological monitoring or NPM or clinical examination during endovascular procedures
| Patient No. | General Anesthesia (Y/N)* | NPM Changes (Y/N) | PE Changes (Y/N) | Altered Management (Y/N) | Type of Alteration/Reason for No Alteration |
|---|---|---|---|---|---|
| 4 | Y | Y | N | N | Coil loop protruding from aneurysm; coil not withdrawn |
| 5 | N | Y | N | Y | Delayed PVO to allow EC-IC graft maturation |
| 7 | Y | Y | N | Y | Increased mean arterial pressure to improve perfusion |
| 9 | Y | Y | N | N | Aneurysm perforation; proceeded with treatment |
| 11 | Y | Y | N | Y | PVO of right vertebral instead of basilar artery |
| 26 | Y | Y | N | Y | No coil detachment |
| 27 | Y | Y | N | Y | No coiling or PVO |
| 29 | Y | Y | N | N | Aneurysm perforation; proceeded with treatment |
| 30 | Y | Y | N | N | NPM changes at end of procedure |
| 10 | N | N | Y | Y | No PVO |
| 33 | N | N | Y | Y | No PVO |
Note.—Y indicates yes; N, no; NPM, neurophysiological monitoring; PE, physical examination; PVO, permanent vessel occlusion; EC-IC, extracranial-intracranial.
*
Balloon test occlusion was performed with the patient under conscious sedation when possible; permanent vessel occlusion or aneurysm coiling was then performed with the patient under general anesthesia.