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Arterial Pressure Derived Dynamic Parameters to Detect Preload Responsiveness in Mechanically Ventilated Patients Under Spontaneous Mode

NCT06495489 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 34

Last updated 2025-07-09

No results posted yet for this study

Summary

The management of septic shock patients includes the infusion of fluids, however fluids may be deleterious if the patient does not respond by increasing cardiac output. By consequence, it is now recommended to predict the fluid response (fluid or preload responsiveness) before infusing them. In this protocol, the investigators will include critically ill patients mechanically ventilated patients under a spontaneous mode, for whom the physician in charge has decided to test preload responsiveness. The investigators will collect from the continuous monitoring of arterial pressure of the patient the Pulse Pressure (PP) which is the difference between systolic arterial pressure and diastolic arterial pressure and the Pulse Pressure Variation (PPV) automatically displayed by the monitor in addition to other clinical (hemodynamic, respiratory) parameters. After one minute of Passive Leg Raising manoeuvre (PLR) the investigators collect the same parameters and the investigators will compare the changes of these parameters in patients who are preload responsive to patients who are not. Preload responsiveness will be defined by echocardiographic parameters before and during PLR. More exactly, a surrogate of cardiac output measured by echocardiography wich is VTI of the sub-aorti flow; an increase of more than 12% defines apreload responsive patient.

Conditions

  • General Critically Ill Patients With Hypovolemia

Interventions

OTHER

Detection of preload responders by a PLR test

Detection of preload dependency by using PLR test and echocardiography

Sponsors & Collaborators

  • CHU de Reims

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-01-29
Primary Completion
2025-03-27
Completion
2025-03-27

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06495489 on ClinicalTrials.gov