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NIRS: So near yet so far (From the brain)


Department of Cardiac Anesthesia, National Heart Centre, The Royal Hospital, Muscat, Sultanate of Oman

Correspondence Address:
Suman S Kandachar
Department of Cardiac Anesthesia, National Heart Centre, The Royal Hospital, Muscat
Sultanate of Oman
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aca.ACA_97_19

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Year : 2020  |  Volume : 23  |  Issue : 4  |  Page : 505-507

 

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Cerebral oximetry is touted as a magic wand to detect cerebral hypoperfusion. Inability to completely exclude extracranial oxygen however is a limitation. Variation in scalp vascularity can magnify the limitations of relatively short emitter–detector distances. The combination of brain ischemia and cutaneous hyperemia, as is the situation during anaphylaxis and anaphylactoid reactions, can be associated with a paradoxical increase in cerebral oximetry values. This could compromise the quality and accuracy of care delivered. We report the association of red man syndrome with exaggerated cerebral oximetry values.






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Department of Cardiac Anesthesia, National Heart Centre, The Royal Hospital, Muscat, Sultanate of Oman

Correspondence Address:
Suman S Kandachar
Department of Cardiac Anesthesia, National Heart Centre, The Royal Hospital, Muscat
Sultanate of Oman
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aca.ACA_97_19

Rights and Permissions

Cerebral oximetry is touted as a magic wand to detect cerebral hypoperfusion. Inability to completely exclude extracranial oxygen however is a limitation. Variation in scalp vascularity can magnify the limitations of relatively short emitter–detector distances. The combination of brain ischemia and cutaneous hyperemia, as is the situation during anaphylaxis and anaphylactoid reactions, can be associated with a paradoxical increase in cerebral oximetry values. This could compromise the quality and accuracy of care delivered. We report the association of red man syndrome with exaggerated cerebral oximetry values.






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