Demonstrating the potential role of a cerebral blood flow monitor during cardiac surgery with hypothermic circulatory arrest

Alexander Zavriyev; Kutlu Kaya; Parisa Farzam; Parya Y. Farzam; John Sunwoo; Arminder S. Jassar; Thoralf M. Sundt; Stefan A. Carp; Maria Angela Franceschini; Jason Z. Qu

doi:10.1117/12.2578758

5 March 2021 Demonstrating the potential role of a cerebral blood flow monitor during cardiac surgery with hypothermic circulatory arrest

Alexander Zavriyev, Kutlu Kaya, Parisa Farzam, Parya Y. Farzam, John Sunwoo, Arminder S. Jassar, Thoralf M. Sundt, Stefan A. Carp, Maria Angela Franceschini, Jason Z. Qu

Author Affiliations +

Proceedings Volume 11629, Optical Techniques in Neurosurgery, Neurophotonics, and Optogenetics; 116290C (2021) https://doi.org/10.1117/12.2578758
Event: SPIE BiOS, 2021, Online Only

Abstract

Real-time noninvasive cerebral blood flow monitoring during cardiac surgery could decrease rates of neurologic injury associated with hypothermic circulatory arrests (HCA). We used combined frequency domain near-infrared spectroscopy and diffuse correlation spectroscopy (FDNIRS-DCS) to measure cerebral oxygen saturation and an index of blood flow (CBFi) in 12 adults undergoing HCA. Our measurements revealed negligible CBFi during retrograde cerebral perfusion (RCP: CBFi 91.2%±3.3% drop; HCA-only: 95.5%±1.8% drop). There was a significant difference during antegrade cerebral perfusion (p = 0.003). We conclude that FDNIRS-DCS can be a powerful tool to optimize cerebral perfusion and that RCP’s efficacy needs to be further examined.

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Alexander Zavriyev, Kutlu Kaya, Parisa Farzam, Parya Y. Farzam, John Sunwoo, Arminder S. Jassar, Thoralf M. Sundt, Stefan A. Carp, Maria Angela Franceschini, and Jason Z. Qu "Demonstrating the potential role of a cerebral blood flow monitor during cardiac surgery with hypothermic circulatory arrest", Proc. SPIE 11629, Optical Techniques in Neurosurgery, Neurophotonics, and Optogenetics, 116290C (5 March 2021); https://doi.org/10.1117/12.2578758

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KEYWORDS

Surgery

Cerebral blood flow

Blood

Blood circulation

Brain

Near infrared spectroscopy

Neuroprotection

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