Continuous blood gas monitoring in femoral arteries

Les A. Schlain; Steven M. Spar; Bart Dellinger

doi:10.1117/12.208513

8 May 1995 Continuous blood gas monitoring in femoral arteries

Les A. Schlain, Steven M. Spar, Bart Dellinger

Author Affiliations +

Proceedings Volume 2388, Advances in Fluorescence Sensing Technology II; (1995) https://doi.org/10.1117/12.208513
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

Continuous intra-arterial blood gas monitoring is a potentially valuable tool in the surgical and intensive care arenas. Patient oxygenation and acid base status can change rapidly and without warning. The ability to monitor pH_a, P_aCO₂ and P_aO₂ in arterial blood will be a major medical advance for the anesthesiologist and intensivist. Intra-arterial blood gas sensors are typically placed in radial arteries. In certain patient populations accurate monitoring is not possible in radial arteries due to arterial environmental factors such as hypotension, vasoconstriction and atherosclerotic disease. These same factors can make radial cannulation difficult resulting in traumatic catheter insertion, thereby further compromising flow conditions. In situations where radial artery flow is expected to be compromised, selecting a large vessel for sensor placement is desirable. We report an initial feasibility study of our blood gas monitoring system using the femoral artery as the sensing site. Clinical results are presented as well as potential advantages and disadvantages associated with monitoring in the femoral artery.

Citation Download Citation

Les A. Schlain, Steven M. Spar, and Bart Dellinger "Continuous blood gas monitoring in femoral arteries", Proc. SPIE 2388, Advances in Fluorescence Sensing Technology II, (8 May 1995); https://doi.org/10.1117/12.208513

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