![]() ![]() PEEP, an integral part of ARDS ventilation management, can be titrated to a patient's specific need based on capnography and dead space monitoring, but this finding has not been consistently shown in multiple studies. Measurement of this dead space provides a quantifiable indicator of overall lung function for physicians to assess throughout the course of ARDS patients' hospital course. Despite that the VDphys/VT ratio measured by Enghoff's equation is adversely affected by pulmonary shunting in ARDS, VDphys/VT has been shown to be a significant predictor of mortality during early-phase acute respiratory distress syndrome (ARDS), and increases in the VDphys/VT ratio correlated with poorer patient outcomes. Dead space is an integral part of volume capnography, which measures expired CO2 and dead space (VDphys/VT) on a breath-by-breath basis for efficient monitoring of patient ventilation. Anesthesia: Bronchodilation from anesthetic gases increases dead space volume.Įstimating the dead space can be of significant value in clinical situations for diagnostic, prognostic, and therapeutic value.
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