Fig. 3
From: Controlled arterial hypotension during resection of cerebral arteriovenous malformations
Postoperative occurrence of neurological deficits depending on the intraoperative mean arterial blood pressure (MABP) and the Spetzler-Martin grading. There were no neurological deficits when the MABP was > 75 mmHg. Patients with and without postoperative neurological deficits are shown as black or white circles, respectively. Two patients with a MABP ≤51 mmHg developed no deficit (as marked by the red circle). In both, hypotension was performed for a short duration (5 and 10 min) only