ECG worth a 'few hundred' words.

10 Padmanabhan P, Berkenbosch JW, Lorenz D, et al. Evaluation of cerebral oxygenation during procedural sedation in children using near infrared spectroscopy. Ann Emerg Med 2009;54:205–13. 11 Vranken NPA, Weerwind PW, Sutedja NA, et al. Cerebral oximetry and autoregulation during cardiopulmonary bypass: a review. J Extra Corpor Technol 2017;49:182–91 https://www.ncbi.nlm.nih.gov/pubmed/28979042 12 Chernik DA, Gillings D, Laine H, et al. Validity and reliability of the observer’s assessment of alertness/sedation scale: study with intravenous midazolam. J Clin Psychopharmacol 1990;10:244–51 https://www.ncbi.nlm.nih.gov/pubmed/ 2286697 13 Miner JR, Biros M, Krieg S, et al. Randomized clinical trial of propofol versus methohexital for procedural sedation during fracture and dislocation reduction in the emergency department. Acad Emerg Med 2003;10:931–7. 14 Miner JR, Biros MH, Seigel T, et al. The utility of the bispectral index in procedural sedation with propofol in the emergency department. Acad Emerg Med 2005;12:190–6. 15 O’BrienLambert A, Driver B, Moore JC, et al. Using near infrared spectroscopy for tissue oxygenation monitoring during procedural sedation: the occurrence of peripheral tissue oxygenation changes with respiratory depression and supportive airway measures. Acad Emerg Med 2016;23:98–101. 16 Bhatt M, Kennedy RM, Osmond MH, et al. Consensusbased recommendations for standardizing terminology and reporting adverse events for emergency department procedural sedation and analgesia in children. Ann Emerg Med 2009;53:426–35. 17 Mille T, Tachimiri ME, Klersy C, et al. Near infrared spectroscopy monitoring during carotid endarterectomy: which threshold value is critical? Eur J Vasc Endovasc Surg 2004;27:646–50. 18 Harris PA, Taylor R, Thielke R, et al. Research electronic data capture (REDCap)--a metadatadriven methodology and workflow process for providing translational research informatics support. J Biomed Inform 2009;42:377–81. 19 Fleck T, Schubert S, Ewert P, et al. Propofol effect on cerebral oxygenation in children with congenital heart disease. Pediatr Cardiol 2015;36:543–9. 20 Oddo M, Crippa IA, Mehta S, et al. Optimizing sedation in patients with acute brain injury. Crit Care 2016;20:128. 21 Moerman A, De Hert S. Cerebral oximetry: the standard monitor of the future? Curr Opin Anaesthesiol 2015;28:703–9. 22 Khan I, Rehan M, Parikh G, et al. Regional cerebral oximetry as an indicator of acute brain injury in adults undergoing venoarterial extracorporeal membrane Oxygenationa prospective pilot study. Front Neurol 2018;9:993. 23 Wong JK, Smith TN, Pitcher HT, et al. Cerebral and lower limb nearinfrared spectroscopy in adults on extracorporeal membrane oxygenation. Artif Organs 2012;36:659–67.