Neuromonitoring variables of the two treatment groups for the whole monitoring period
| Variable | Group 1: ICP/CPP guided (n=40) | Group 2: PtiO2 guided (n=53) | p Value |
|---|---|---|---|
| Values are mean (SD) (first three rows) or relative frequency of critical phases lasting 30 minutes for ICP > 20 mm Hg, CPP < 70 mm Hg, and PtiO2 < 1.33 kPa (10 mm Hg) over the whole monitoring period. | |||
| *Mann-Whitney U test. | |||
| †2 × 2 table χ2 test (median test). | |||
| ICP, intracranial pressure; CPP, cerebral perfusion pressure; Ptio2, partial pressure of brain tissue oxygen. | |||
| ICP (mm Hg) | 18.7 (11.9) | 15.5 (7.9) | 0.21* |
| CPP (mm Hg) | 69.0 (15.1) | 65.6 (14.2) | 0.65* |
| PtiO2 (mm Hg) | 23.9 (7.5) | 28.1 (10.3) | 0.03* |
| ICP >20 | 39% | 30% | 0.10† |
| CPP <70 | 55% | 54% | 0.81† |
| PtiO2 <10 | 8.5% | 3.4% | 0.08† |