Fig. 1
From: Controlled arterial hypotension during resection of cerebral arteriovenous malformations
Intraoperative course of mean arterial blood pressure (MABP) in the hypotension group (n = 28 patients) and the control group (n = 28). The boxplots indicate the median, 10th, 25th, 75th and 90th percentiles, with a dashed line showing the mean value. Early and late surgery stage refer to the first and last third of the surgical procedure. Groups do not differ in their ABP, except for the end of anaesthesia. In the control group, neither hypotension nor blood pressure normalization was performed by definition