Value of the venous-arterial PCO2 gradient to reflect the oxygen supply to demand in humans: effects of dobutamine.

Abstract

OBJECTIVE To test the value of venous-arterial PCO2 gradient (deltaPCO2) measurements to reflect the adequacy of cardiac index (CI) to oxygen demand in patients submitted to rapid changes of CI and oxygen demand. DESIGN Prospective, comparative study. SETTING Medical intensive care unit of a university hospital. PATIENTS Ten patients with congestive… (More)

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