TABLE 1:
Patient demographic data
| Patient No. | Age (yr) | Sex | Aneurysm Location | Ruptured (Y/N) | Procedure | NPM Type |
|---|---|---|---|---|---|---|
| 1 | 80 | F | LICA | N | Aneurysm coiling | SSEP |
| 2 | 33 | F | R cavemous ICA | N | Aneurysm coiling | SSEP |
| 3 | 41 | F | Basilar trunk | N | Aneurysm coiling | SSEP, BAEP |
| 4 | 54 | M | LICA | N | Aneurysm coiling | SSEP, EEG |
| 5 | 40 | F | RICA | N | BTO s/p intracranial bypass | SSEP, EEG, neuro exam |
| BTO and RICA occulusion | SSEP, EEG, neuro exam | |||||
| 6 | 52 | F | RICA ophthalmic | Y | BTO and aneurysm coiling | SSEP, EEG |
| 7 | 59 | M | Distal L PICA | Y | Sodium amytal testing and glue embolization of L PICA | SSEP, BAEP |
| 8 | 48 | F | MCA | Y | BTO and RICA occlusion* | SSEP, BAEP, neuro exam |
| 9 | 52 | F | Basilar tip | Y | Attempted aneurysm coiling | SSEP, BAEP |
| 10 | 81 | F | RICA | N | BTO | SSEP, EEG, neuro exam |
| 11 | 80 | F | Basilar | N | BTO and RVA occlusion | SSEP, BAEP |
| 12 | 74 | F | RICA | N | BTO and aneurysm coiling | SSEP, EEG, neuro exam |
| 13 | 72 | M | R AICA | Y | Aneurysm coiling | SSEP, EEG |
| 14 | 76 | F | R supraclinoid ICA | N | BTO and aneurysm coiling | SSEP, BAEP, neuro exam |
| 15 | 76 | M | Mid-basilar | N | BTO and LVA occlusion† | SSEP, BAEP, neuro exam |
| 16 | 54 | F | R Pcomm | N | Pre-op BTO | EEG, neuro exam |
| 17 | 67 | F | L para-ophthalmic ICA | N | BTO and aneurysm coiling | SSEP, EEG |
| 18 | 52 | F | LICA | N | BTO and aneurysm coiling | SSEP, EEG, neuro exam |
| 19 | 41 | F | L paraclinoid | N | Aneurysm coiling | SSEP, EEG |
| 20 | 52 | M | LICA | N | Aneurysm coiling | SSEP, EEG |
| 21 | 49 | F | L cavernous ICA | N | Pre-op BTO | SSEP, neuro exam |
| LICA occlusion | SSEP, EEG, neuro exam | |||||
| 22 | 72 | F | R cavernous ICA | N | BTO and RICA occlusion | SSEP, EEG |
| 23 | 76 | F | R MCA bifurcation | N | Aneurysm coiling | SSEP, EEG |
| 24 | 43 | M | R distal vertebral | N | BTO and RVA occlusion | SSEP, BAEP, neuro exam |
| 25 | 60 | M | L para-ophthalmic ICA | N | BTO and aneurysm coiling | SSEP, EEG, neuro exam |
| 26 | 78 | F | L MCA bifurcation | Y | Attempted aneurysm coiling | SSEP, EEG |
| 27 | 75 | F | L distal ICA | Y | BTO and attempted aneurysm coiling | SSEP, EEG |
| 28 | 54 | M | Basilar tip | Y | Aneurysm coiling | SSEP, BAEP |
| 29 | 73 | F | Basilar tip, Acomm, R Pcomm | N | Aneurysm coiling | SSEP, BAEP |
| 30 | 40 | F | R MCA bifurcation | Y | Aneurysm coiling | SSEP |
| 31 | 68 | F | Basilar tip | N | Aneurysm coiling | SSEP, BAEP |
| 32 | 62 | F | L paraclinoid ICA | Y | Aneurysm coiling | SSEP, EEG |
| 33 | 44 | M | R P2 segment | N | Sodium amytal testing | SSEP, BAEP, neuro exam |
| Aneurysm coiling | SSEP, BAEP, EEG | |||||
| 34 | 69 | F | LICA | Y | BTO and aneurysm coiling | SSEP, EEG |
| 35 | 51 | M | L distal VA | N | BTO and LVA occlusion | SSEP, BAEP, neuro exam |
Note.—Y indicates yes; N, no; NPM, neurophysiological monitoring; F, female; M, male; L, left; R, right; ICA, internal carotid artery; PICA, posterior inferior cerebellar artery; MCA, middle cerebral artery; AICA, anterior inferior cerebellar artery; Pcomm, posterior communicating artery; Acomm, anterior communicating artery; VA, vertebral artery; BTO, balloon test occlusion; s/p, status-post; pre-op, preoperative; SSEP, somatosensory evoked potential; BAEP, brain stem auditory evoked potential; neuro exam, neurologic examination.
*
Surgical ligation of the left internal carotid artery.
†
Basilar artery test occlusion failed for this patient; permanent left vertebral artery occlusion was performed.