Neurovital and respiratory parameters. A, B) Mean curves of neurovital parameters during CI (A; n = 10), and NPC (B; n = 10). SAP, systolic arterial pressure; CPP, cerebral perfusion pressure; ICP, intracranial pressure; HR, heart rate. C) Mean inspiratory tidal volume curves for CI (n = 9) versus NPC (n = 9) and corresponding 95% confidence intervals (grey shading); respiratory data were not available for one patient in each interventional group. Sampling rate for all data acquisition was 1/minute.