biostudies-literatureUnknown3(6)Ito J<h4>Objectives</h4>We conducted a pilot study using an experimental study protocol to evaluate the measurement error of arterial pulse contour analysis-derived stroke volume due to improper transducer leveling during the passive leg raising test and the impact of such error on the determination of fluid responsiveness.<h4>Design</h4>Prospective observational study.<h4>Setting</h4>A medical-surgical ICU at a tertiary referral center in Kobe, Japan.<h4>Patients</h4>Consecutive critically ill adult patients using the FloTrac system Version 4.0 (Edwards Lifesciences, Irvine, CA) for hemodynamic monitoring between September 1, 2018, and November 31, 2018.<h4>Interventions</h4>None.<h4>Measurements and main results</h4>Using 20 patients, we estimated the change in the zero-reference level of an Critical care explorationse0465https://www.ebi.ac.uk/biostudies/studies/S-EPMC8208422biostudies-literatureThe Effect of Changing Arterial Transducer Position on Stroke Volume Measurements Using FloTrac System Version 4.0: A Pilot Experimental Study.PMC8208422Morimoto TShimozono TUeta HIto JMima HKawakami DfalseThe Effect of Changing Arterial Transducer Position on Stroke Volume Measurements Using FloTrac System Version 4.0: A Pilot Experimental Study.<h4>Objectives</h4>We conducted a pilot study using an experimental study protocol to evaluate the measurement error of arterial pulse contour analysis-derived stroke volume due to improper transducer leveling during the passive leg raising test and the impact of such error on the determination of fluid responsiveness.<h4>Design</h4>Prospective observational study.<h4>Setting</h4>A medical-surgical ICU at a tertiary referral center in Kobe, Japan.<h4>Patients</h4>Consecutive critically ill adult patients using the FloTrac system Version 4.0 (Edwards Lifesciences, Irvine, CA) for hemodynamic monitoring between September 1, 2018, and November 31, 2018.<h4>Interventions</h4>None.<h4>Measurements and main results</h4>Using 20 patients, we estimated the change in the zero-reference level of an 2021-01-01T00:00:00Z2021 Jun2025-04-04T09:30:03.428Z2022-02-10T16:00:51.641ZS-EPMC82084223415128610.1097/CCE.0000000000000465