MedTrace Logo

Carotid Doppler and EEOT for Fluid Responsiveness Prediction

NCT04470856 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2021-07-01

No results posted yet for this study

Summary

Fluid responsiveness prediction prior to fluid challenge administration is a topic of interest, which has been extensively investigated, but remains challenging.

In clinical practice, functional hemodynamic tests (FHT) consisting of maneuvers that affect cardiac function and/or heart-lung interaction, have been introduced in order to identify fluid responders and non-responders without fluid challenge administration.

Changes in cardiac output induced by the Passive Leg Raising (PLR) test reliably predicted the increase in cardiac output to volume expansion. New approaches have been recently developed based on changes in respiratory dynamics, such as a transient increase in tidal volume, or a lung recruitment maneuver or an end-expiratory occlusion (EEO) test. The EEO leaded to an increase in venous return, cardiac preload and stroke volume in preload-responsive patients. The authors found that an increase in cardiac output ≥ 5% during a 15-s EEO reliably predicted its response to a 500-ml saline infusion.

However, in order to identify the rapid and transient increase in cardiac index during the EEO, continuous and instantaneous cardiac output monitoring is necessary. Pulse contour analysis methods provide a beat-to-beat estimation of cardiac output and had been used in most of studies validating the EEO test.

Carotid doppler is a non-invasive, bedside, easy to use ultrasound technique that measuring blood flow peak velocity (CDPV) and duration of systolic component of each cardiac cycle (from the onset to dicrotic notch- Flow time - FT) allows a reliable estimation of fluid status and could be an interesting alternative to track changes in SV and cardiac output.

Conditions

  • Septic Shock

Interventions

DIAGNOSTIC_TEST

End-expiratory occlusion test (EEOT)

An occlusion manoeuvre during the end of expiration for 20 seconds

Sponsors & Collaborators

  • Fondazione Policlinico Universitario Agostino Gemelli IRCCS

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SEQUENTIAL

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-01-01
Primary Completion
2020-07-30
Completion
2020-12-31

Countries

  • Italy

Study Locations

More Related Trials

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 NCT04470856 on ClinicalTrials.gov