Figure 3.

Incidence of SDs following primary intracerebral hemorrhage (a–c). All patients, with or without SDs, were included in the analysis. The total number of SDs by day was divided by the number of patients recorded in the corresponding time interval in order to obtain mean rates that can be compared across time. Black bars represent the number of all SDs (a). The subgroup of ISDs is shown to the right in white bars (b). Number of patients that underwent recording by day (c). ISD: isoelectric depolarization; SD: spreading depolarization.