Study of PbiO2 Variation by Body Temperature and Capnia in Severe Head Trauma Patients Treated With Targeted Temperature Control

Serious head trauma is a common and pathology and responsible of high morbidity and mortality. The major challenge, from the very first hours, is to limit cerebral ischemia by controlling secondary brain injury factors. These parameters must be integrated early in order to guide the better cerebral resuscitation. Brain monitoring is multimodal:transcranial Doppler, intracranial pressure sensor, cerebral tissue pressure in O2. In the case of refractory intracranial hypertension to well-conducted medical treatment, targeted temperature control showed its efficacy on the control of intracranial pressure. There are few data in the literature on PbtO2 modifications during therapeutic hypothermia. PbtO2 monitoring is now commonly used according to literature data, showing the benefit of the latter but the interpretation of its values during the phase of targeted temperature control is not known. Due to the lack of data on the variation of values of PbtO2 during the hypothermia phase, values falsely comfortable or falsely weak could lead respectively to a lack of support of an episode of tissue hypoxia or the introduction of unjustified aggressive therapeutics.