International Journal of Surgery

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Presentation transcript:

International Journal of Surgery Intraoperative monitoring of cerebral NIRS oximetry leads to better postoperative cognitive performance: A pilot study Tamara Trafidło, Tomasz Gaszyński, Wojciech Gaszyński, Katarzyna Nowakowska-Domagała International Journal of Surgery Volume 16, Pages 23-30 (April 2015) DOI: 10.1016/j.ijsu.2015.02.009 Copyright © 2015 Surgical Associates Ltd Terms and Conditions

Fig. 1 Description of the a battery of tests employed in the evaluation of postoperative cognitive deficiencies. International Journal of Surgery 2015 16, 23-30DOI: (10.1016/j.ijsu.2015.02.009) Copyright © 2015 Surgical Associates Ltd Terms and Conditions

Fig. 2 Algorithm of procedures applied in the decline in the value of NIRS cerebral oximetry. ScrO2 – local saturation of the cerebral cortex; MAP – mean arterial pressure; SaO2 – oxygen saturation of arterial blood; Hb – hemoglobin; CO – cardiac output; ScvO2 – central venous oxygen saturation; CMRO2 – cerebral metabolic rate of oxygen; ICP – intracranial pressure. International Journal of Surgery 2015 16, 23-30DOI: (10.1016/j.ijsu.2015.02.009) Copyright © 2015 Surgical Associates Ltd Terms and Conditions

Fig. 3 Graph of MAP (mean arterial pressure), NIRS1 and NIRS2 (near infrared spectroscopy – cerebral oxygen saturation) correlations in a 32 year – old woman participating in the study. A positive correlation between the recorded parameters was detected. International Journal of Surgery 2015 16, 23-30DOI: (10.1016/j.ijsu.2015.02.009) Copyright © 2015 Surgical Associates Ltd Terms and Conditions

Fig. 4 Graph of MAP (mean arterial pressure), SpO2 (systemic pulse oximetry saturation), NIRS1 and NIRS2 (near infrared spectroscopy – cerebral oxygen saturation) correlations in a 60 year-old woman participating in the study. No positive correlation between the recorded parameters was detected. The arrow indicates unilateral decreases in the value of NIRS2 despite increases in MAP. SpO2 values remain unchanged, despite the fluctuations in the value of NIRS. International Journal of Surgery 2015 16, 23-30DOI: (10.1016/j.ijsu.2015.02.009) Copyright © 2015 Surgical Associates Ltd Terms and Conditions

Fig. 5 Graph of MAP (mean arterial pressure), NIRS1 and NIRS2 (near infrared spectroscopy – cerebral oxygen saturation) correlations in a 60 year – old man participating in the study. The arrow indicates the decrease in MAP with no decreases detected in the value of NIRS. International Journal of Surgery 2015 16, 23-30DOI: (10.1016/j.ijsu.2015.02.009) Copyright © 2015 Surgical Associates Ltd Terms and Conditions

Fig. 6 Graph of MAP (mean arterial pressure), NIRS1 and NIRS2 (near infrared spectroscopy – cerebral oxygen saturation) correlations in a 29 year – old woman participating in the study. The arrow indicates the decrease in MAP during which no declines in the value of NIRS were detected. International Journal of Surgery 2015 16, 23-30DOI: (10.1016/j.ijsu.2015.02.009) Copyright © 2015 Surgical Associates Ltd Terms and Conditions