Why the study?
Does the magnitude of mean arterial pressure decrease during anesthesia induction affect the arterial to end-tidal carbon dioxide difference in patients undergoing craniotomy?
Population
72 elective craniotomy patients
Comparison
Anesthesia induction and volume-controlled… vs Different categories of mean arterial pressure…
Design
Cohort
Follow-up
From arrival in operating room until head pinning
Authors
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Greater MAP drop during induction associated with wider PaCO2-EtCO2 gradient; leaves open whether MAP stabilization improves EtCO2 reliability in craniotomy.
Does the magnitude of mean arterial pressure decrease during anesthesia induction affect the arterial to end-tidal carbon dioxide difference in patients undergoing craniotomy?
A greater decrease in mean arterial pressure during anesthesia induction for craniotomy is associated with a larger difference between arterial and end-tidal carbon dioxide, suggesting MAP changes should be considered when adjusting mechanical ventilation.
Luostarinen et al. (2010) studied this question.
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