Population
24 anesthetized patients undergoing abdominal aortic aneurysm surgery with constant ventilation
Design
Cohort
Follow-up
within 10 min of hemodynamic changes
Authors
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May support PETCO2 as a noninvasive cardiac output surrogate in anesthesia; extends observational correlations but leaves prospective validation open.
In anesthetized patients, acute decreases in end-tidal PCO2 quantitatively reflect decreases in cardiac output and CO2 elimination during hemodynamic perturbations.
Shibutani et al. (1994) studied this question.
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