Anesthetic technique for awake artery malformation clipping with motor evoked potential and somatosensory evoked potential: A case report

Figure 1 The preoperative magnetic resonance imaging of head showing high density shade in right front lobe and next to cerebral falx. A: The axial magnetic resonance imaging (MRI); B: The sagittal MRI. The preoperative right internal carotid artery injection angiograms showing A3 segment malformation of the right anterior cerebral artery; C: Anteroposterior projection; D: Lateral projection.

Figure 2 Intraoperative photograph showing the patient positioned in supine position with head rotated to the left. She placed a nasopharyngeal airway.

Figure 3 The intraoperative finding: The dilated and tortuous segment of the right anterior cerebral artery.

Figure 4 Postoperative computed tomography angiograph image: 3 clips used for aneurysm occlusion.

Figure 5 The postoperative right internal carotid artery injection angiograms showing no dilated and tortuous segment. A: Anteroposterior projection; B: Lateral projection. The preoperative magnetic resonance imaging (MRI) of head showing no ischemic lesions; C: The axial MRI; D: The sagittal MRI.