The increase in amplitude of fluctuations of cerebral hemoglobin concentration in respiratory band related to increase in intra-abdominal pressure

Piotr Sawosz; Magdalena Morawiec; Wojciech Dabrowski; Michal Kacprzak; Przemyslaw Pulawski; Karolina Bejm; Roman Maniewski; Adam Liebert

doi:10.1117/12.2527027

11 July 2019 The increase in amplitude of fluctuations of cerebral hemoglobin concentration in respiratory band related to increase in intra-abdominal pressure

Piotr Sawosz, Magdalena Morawiec, Wojciech Dabrowski, Michal Kacprzak, Przemyslaw Pulawski, Karolina Bejm, Roman Maniewski, Adam Liebert

Author Affiliations +

Proceedings Volume 11074, Diffuse Optical Spectroscopy and Imaging VII; 110741J (2019) https://doi.org/10.1117/12.2527027
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

We present results of clinical studies in patients during increase in intra-abdominal pressure (IAP). Changes in brain hemoglobin concentration assessed from time-resolved nearinfrared spectroscopy system were analyzed in frequency domain. The amplitude of power spectral density in respiratory band increases while IAP increases what is related to reduced venous outflow.

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Piotr Sawosz, Magdalena Morawiec, Wojciech Dabrowski, Michal Kacprzak, Przemyslaw Pulawski, Karolina Bejm, Roman Maniewski, and Adam Liebert "The increase in amplitude of fluctuations of cerebral hemoglobin concentration in respiratory band related to increase in intra-abdominal pressure", Proc. SPIE 11074, Diffuse Optical Spectroscopy and Imaging VII, 110741J (11 July 2019); https://doi.org/10.1117/12.2527027

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