Effect of the Steep Trendelenburg Position on Respiratory Gas Heat Content
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This is a single site, prospective, non-blinded, non-randomized, non-interventional study designed to evaluate the effect of changes in patient position on the measurement of respiratory heat loss (enthalpy). This study would be carried out on patients whose operation requires the use of the steep Trendelenburg position independent of this study.
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Layout table for eligibility information
Ages Eligible for Study:
18 Years to 100 Years (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Elective surgery requiring steep Trendelenberg position.
age greater than 18 years
scheduled for an elective surgical procedure requiring general anesthesia, positive pressure ventilation using an endotracheal tube and the steep Trendelenburg position
Adults unable to give primary consent
age less than 18 years
infusion of inotropic drugs
positive end expiratory pressure (PEEP) requirements >8 cm H2O Women, minorities or non-English speaking subjects will not be excluded.