Abstract

Changes in arterial pressure during mechanical ventilation

Author(s): Daniel Suarez

Mechanical ventilation induces cyclic changes in vena cava blood inflow, pulmonary roadway blood inflow, and aortic blood inflow. At the bedside, respiratory changes in aortic blood inflow are reflected by “swings” in blood pressure whose magnitude is largely dependent on volume status. During the once many times, numerous studies have demonstrated that arterial pressure variation is neither an index of blood volume nor a