Changes in cerebral oxygen saturation and haemoglobin concentration during paediatric cardiac surgery

Although near-infrared spectroscopy (NIRS) enables bedside assessment of cerebral oxygenation, it provides little information on the cause of deoxygenation. The authors aimed to investigate the changes in cerebral oxygenation and haemoglobin concentration and their associations during paediatric car...

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Bibliographic Details
Published in:Anaesthesia and intensive care 2017-03, Vol.45 (2), p.220-227
Main Authors: Suemori, T., Horton, S. B., Bottrell, S., Skowno, J. J., Davidson, A.
Format: Article
Language:English
Subjects:
Brain - metabolism
Cardiac Surgical Procedures
Cerebrovascular Circulation
Child
Child, Preschool
Congenital heart disease
Female
Heart Defects, Congenital - surgery
Hemoglobins - analysis
Humans
Infant
Ischemia
Male
Near infrared spectroscopy
Oxygen - metabolism
Oxyhemoglobin
Pediatric intensive care
Retrospective Studies
Spectroscopy, Near-Infrared
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Summary:Although near-infrared spectroscopy (NIRS) enables bedside assessment of cerebral oxygenation, it provides little information on the cause of deoxygenation. The authors aimed to investigate the changes in cerebral oxygenation and haemoglobin concentration and their associations during paediatric cardiac surgery in order to elucidate the physiology underlying cerebral deoxygenation. An observational retrospective study on 399 patients who underwent paediatric cardiac surgery was conducted. With use of NIRS, cerebral oxygen saturation as expressed by tissue oxygen index (TOI) before and after surgery, concentration changes in oxygenated haemoglobin (Delta[HbO2]) and deoxygenated haemoglobin (Delta[HHb]) after surgery were studied as were the associations between these values and clinical variables. TOI decreased after surgery (preoperative versus postoperative value, 66.0% [56.9, 71.3] versus 63.2% [54.3, 69.4], median [25th, 75th percentile], P
ISSN:0310-057X
1448-0271
DOI:10.1177/0310057X1704500212