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, there is increasing evidence to suggest that these global indices may not be reflective of changes in the microcirculation with regard to capillary perfusion and tissue oxygenation. Several studies 1–5 have evaluated response to various treatments for
not evaluated. However, pulse oximetry data revealed that hemoglobin saturation returned to preprocedure values in 8 of the 9 rabbits. Pulse oximetry is an important noninvasive tool for the evaluation of arterial oxygenation, which has been termed the