Also, just because a patient is fluid responsive does not mean they actually need fluid. Pulse pressure variation (ppv) has been shown to predict fluid responsiveness in ventilated intensive care unit (icu) patients Monitoring arterial pressure variation, i.e
Hemodynamic Pressure Monitoring
Spv/ppv, helps to answer the question of fluid responsiveness and can be used to guide fluid expansion therapy.4 spv/ppv parameters cannot, however, indicate what type of fluid is the most suitable for the therapy.
Lidco ltd, as the manufacturer and supplier of pulseco, lidcoplus, lidcorapid and lidcounity medical devices, does not practice medicine and does not recommend these normal parameter metrics for use on a specific patient.
In anesthetized patients without cardiac arrhythmia the arterial pulse pressure variation (ppv) induced by mechanical ventilation has been shown the most accurate predictor of fluid responsiveness.