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. 2024 Aug 26;14(9):1067. doi: 10.3390/life14091067

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Cerebral autoregulation by NIRS. Cerebral autoregulation was assessed by NIRS on three consecutive days (a–c), starting from day of admission. The threshold of autoregulation was taken as CO_x of 0.3, represented by dotted lines. Threshold of autoregulation taken as CO_x 0.3, represented by the dotted line. The CO_x is a moving Pearson correlation coefficient between 30 consecutive, 10-s averaged values of MAP and the corresponding rSO₂ signals. Majority of CO_x values were above 0.3 indicating impaired cerebral autoregulation. Abbreviations: NIRS, near-infrared spectroscopy; CO_x, cerebral oximetry index; ROSC, return of spontaneous circulation; MAP, mean arterial pressure; rSO₂, regional cerebral oxygenation.

Cerebral autoregulation by NIRS. Cerebral autoregulation was assessed by NIRS on three consecutive days (a–c), starting from day of admission. The threshold of autoregulation was taken as CO_x of 0.3, represented by dotted lines. Threshold of autoregulation taken as CO_x 0.3, represented by the dotted line. The CO_x is a moving Pearson correlation coefficient between 30 consecutive, 10-s averaged values of MAP and the corresponding rSO₂ signals. Majority of CO_x values were above 0.3 indicating impaired cerebral autoregulation. Abbreviations: NIRS, near-infrared spectroscopy; CO_x, cerebral oximetry index; ROSC, return of spontaneous circulation; MAP, mean arterial pressure; rSO₂, regional cerebral oxygenation.