Why the study?
Previous studies evaluating transcutaneous carbon dioxide measurement did not include patients undergoing TAVR, who experience anticipated hemodynamic changes, particularly before and after valve placement.
Does transcutaneous carbon dioxide tension (PtcCO2) measurement provide an accurate alternative to arterial carbon dioxide tension (PaCO2) measurement during transfemoral TAVR under monitored anesthesia care?
Population
15 patients with severe aortic stenosis undergoing transfemoral TAVR under MAC
Comparison
Transcutaneous PtcCO2 measurement vs arterial PaCO2 measurement
Design
Prospective observational study
Authors
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PtcCO2 via earlobe sensor exceeds PaCO2 agreement limits in TAVR; leaves open prospective validation before any clinical substitution.
Does transcutaneous carbon dioxide tension (PtcCO2) measurement provide an accurate alternative to arterial carbon dioxide tension (PaCO2) measurement during transfemoral TAVR under monitored anesthesia care?
Transcutaneous carbon dioxide measurement using an earlobe sensor does not provide a clinically acceptable alternative to invasive arterial carbon dioxide measurement during TAVR under monitored anesthesia care.
Okazawa et al. (2024) studied this question.
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