531976 PtiO2 tissue PO2 12 531974 PtiO2 Patients underwent continuous brain tissue PO2 2 531975 PtiO2 PCO2 and tissue PO2 1 531973 PtiO2 preparation in vitro, measuring chemosensory discharge and CB tissue PO2 1 531972 PtiO2 pressure improves low values of local brain tissue O2 tension 1 531971 PtiO2 purpose of this study was to compare brain tissue-PO2 1