Our beloved Oh's Intensive Care manual has two excellent chapters to dedicate to this topic:
Chapter 43 (pp. 563) Cerebral protection by Victoria Heaviside and Michelle Hayes, and
Chapter 67 (pp. 765) Severe head injury by John A Myburgh.
The only reference really needed for this are the excellent Brain Trauma Foundation Guidelines.
Sydenham, Emma, Ian Roberts, and Phil Alderson. "Hypothermia for traumatic head injury." Cochrane Database Syst Rev 2 (2009).
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D'Hollander, S., et al. "Retrospective analysis of the hemodynamic effects of induction of barbiturate coma in patients with refractory elevated intracranial pressure." Critical Care 17.Suppl 2 (2013): P330.
Roberts, I., and E. Sydenham. "Barbiturate drugs for people with traumatic brain injury." Health (2012).
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Eisenberg, Howard M., et al. "High-dose barbiturate control of elevated intracranial pressure in patients with severe head injury." Journal of neurosurgery 69.1 (1988): 15-23.
de Nadal, Miriam, et al. "Cerebral hemodynamic effects of morphine and fentanyl in patients with severe head injury: absence of correlation to cerebral autoregulation." Anesthesiology 92.1 (2000): 11.
Roberts, Derek J., et al. "Sedation for critically ill adults with severe traumatic brain injury: A systematic review of randomized controlled trials*." Critical care medicine 39.12 (2011): 2743-2751.
Cooper, D. James, et al. "Decompressive craniectomy in diffuse traumatic brain injury." New England Journal of Medicine 364.16 (2011): 1493-1502.
Edwards, P., et al. "Final results of MRC CRASH, a randomised placebo-controlled trial of intravenous corticosteroid in adults with head injury-outcomes at 6 months." Lancet 365.9475 (2004): 1957-1959.
Himwich, Williamina A., et al. "Brain metabolism in man: unanesthetized and in pentothal narcosis." American Journal of Psychiatry 103.5 (1947): 689-696.
Backhaus, Samantha. "Secondary Brain Injury." Encyclopedia of Clinical Neuropsychology. Springer New York, 2011. 2220-2221.
Siesjö, B. K., and P. Siesjö. "Mechanisms of secondary brain injury." European journal of anaesthesiology 13.3 (1996): 247-268.
Doberstein, Curtis E., David A. Hovda, and Donald P. Becker. "Clinical considerations in the reduction of secondary brain injury." Annals of emergency medicine 22.6 (1993): 993-997.
Ghajar, Jamshid. "Traumatic brain injury." The Lancet 356.9233 (2000): 923-929.
Hawryluk, Gregory WJ, et al. "Guidelines for the management of severe traumatic brain injury: 2020 update of the decompressive craniectomy recommendations." Neurosurgery 87.3 (2020): 427-434.