Neuroanesthesia & neurocritical care

Brain tissue oxygen monitoring in traumatic brain injury—part II: isolated and combined insults in relation to outcome

Crit CarePublished Retrospective cohort study

Authors' conclusion

Low pbtO2, under 25 mmHg and particularly below 15 mmHg, for longer durations and in combination with disturbances in global cerebral physiological variables were associated with poor outcome and may indicate detrimental ischaemic hypoxia.

Study context

Population
Traumatic brain injury (TBI) patients with intracranial pressure (ICP) and pbtO2 monitoring for at least 12 h, neurocritical care unit, Addenbrooke's Hospital, Cambridge, UK, 2002–2022
Participants
239 patients
Outcome
Outcome (GOS favourable/unfavourable 4-5/1-3; survival/mortality 2-5/1) in relation to isolated and combined threshold-insults for brain tissue oxygenation (pbtO2) in TBI
Methodological detailssingle-centre
  • Single-centre

Main finding

As reported in the abstract

pbtO2 threshold yielding highest x2 for favourable/unfavourable outcome

25 mmHg

pbtO2 threshold yielding highest x2 for mortality/survival

20 mmHg

Observational data: associations, not effects.

Original publication

Brain tissue oxygen monitoring in traumatic brain injury—part II: isolated and combined insults in relation to outcome. Crit Care. Published 26 September 2023. doi:10.1186/s13054-023-04659-4

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.