British journal of anaesthesia
-
Multicenter Study Observational Study
Evaluation of pulse pressure variation validity criteria in critically ill patients: a prospective observational multicentre point-prevalence study.
Respiratory variation in pulse pressure (ΔPP) is commonly used to predict the fluid responsiveness of critically ill patients. However, some researchers have demonstrated that this measurement has several limitations. The present study was designed to evaluate the proportion of patients satisfying criteria for valid application of ΔPP at a given time-point. ⋯ A very low percentage of patients satisfied all criteria for valid use of ΔPP in the evaluation of fluid responsiveness. Physicians must consider limitations to the validity of ΔPP before using this variable.