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Hyperspectral imaging for microcirculatory assessment of patients undergoing transcatheter and surgical aortic valve replacement: a prospective observational pilot study

This prospective, observational study evaluated Hyperspectral Imaging (HSI) to assess the effects of cardiac surgery and cardiopulmonary bypass (CPB) on microcirculation. 40 Patients with severe aortic stenosis were enrolled. 20 patients underwent transapical/transaxillary/transaortic aortic valve r...

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Main Authors: Dietrich, Maximilian (Author) , Tayan, Aycan (Author) , Hölle, Tobias (Author) , Nußhag, Christian (Author) , Kapp, Anne-Christine (Author) , Mertens, Christina (Author) , Studier-Fischer, Alexander (Author) , Nickel, Felix (Author) , Leuschner, Florian (Author) , Weigand, Markus A. (Author) , Karck, Matthias (Author) , Lichtenstern, Christoph (Author) , Arif, Rawa (Author) , Fischer, Dania (Author)
Format: Article (Journal)
Language:English
Published: 2025
In: Journal of cardiovascular translational research
Year: 2025, Volume: 18, Issue: 2, Pages: 295-304
ISSN:1937-5395
DOI:10.1007/s12265-024-10573-z
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1007/s12265-024-10573-z
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Author Notes:Maximilian Dietrich, Aycan Tayan, Tobias Hölle, Christian Nusshag, Anne-Christine Kapp, Christina Mertens, Alexander Studier-Fischer, Felix Nickel, Florian Leuschner, Markus Alexander Weigand, Matthias Karck, Christoph Lichtenstern, Rawa Arif, Dania Fischer
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Summary:This prospective, observational study evaluated Hyperspectral Imaging (HSI) to assess the effects of cardiac surgery and cardiopulmonary bypass (CPB) on microcirculation. 40 Patients with severe aortic stenosis were enrolled. 20 patients underwent transapical/transaxillary/transaortic aortic valve replacement (TAVR), 20 underwent an open surgical approach with CPB (SAVR). HSI was used to determine tissue oxygenation (StO2 and NIR), hemoglobin (THI) and water content (TWI) at the palm before/after surgery (T1/T2), and on the third postoperative day (T3). TAVR patients showed no significant changes of microcirculatory parameters during surgery. TWI significantly increased until T3. SAVR patients showed an increase of TWI and a decrease of THI, while StO2 and NIR remained unchanged at T2. In SAVR patients, StO2 and NIR correlated negatively with the duration of CPB and StO2 correlated with intraoperative urine output at T2. HSI was able to detect microcirculatory changes during cardiac surgery. CPB duration seemed to affect tissue oxygenation.
Item Description:Online veröffentlicht: 8. November 2024
Gesehen am 21.05.2025
Physical Description:Online Resource
ISSN:1937-5395
DOI:10.1007/s12265-024-10573-z

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