Cerebral metabolic derangements following traumatic brain injury.

Purpose Of Review: Outcome following traumatic brain injury (TBI) remains variable, and derangements in cerebral metabolism are a common finding in patients with poor outcome. This review compares our understanding of cerebral metabolism in health with derangements seen following TBI.

Recent Findings: Ischemia is common within the first 24 h of injury and inconsistently detected by bedside monitoring.

Findings Predictive of Poor Outcome in Grade 5 Subarachnoid Hemorrhage: A Cohort Study.

Background: Most patients with World Federation of Neurological Surgeons (WFNS) grade 5 subarachnoid hemorrhage (SAH) have poor outcomes. Accurate assessment of prognosis is important for treatment decisions and conversations with families regarding goals of care. Unjustified pessimism may lead to "self-fulfilling prophecy," where withdrawal of life-sustaining measures (WLSM) is invariably followed by death.

Refractory Hyperlactatemia After a Septic Shock in a Patient With Carnitine Deficiency: A Case Report.

A 56-year-old woman with septic shock presented with persistent hyperlactatemia, despite an adequate clinical response to treatment. Carnitine deficiency was suspected, as the patient was malnourished and chronically taking valproic acid. No other plausible cause of hyperlactatemia was found.