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Diagnostic Value of Passive Leg Raise Induced Changes in Carotid Artery Flow Time to Predict Fluid Responsiveness in Critically Ill Patients

NCT02789124 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 22

Last updated 2016-06-09

No results posted yet for this study

Summary

Difficulties in the accurate assessment of intravascular volume in critically ill patients are frequently encountered. In addition to clinical evaluation, bedside echocardiographic measurements of fluid responsiveness can be technically difficult, especially in critically ill mechanically ventilated patients. The carotid artery is an easily accessible structure that is amenable to bedside ultrasonography performed by Intensivists. The investigators hypothesize that measurement of the carotid artery Corrected Flow Time (FTC) in response to a passive leg raise (PLR), which simulates a fluid bolus, can be used to predict fluid responsiveness.

Conditions

  • Fluid Responsiveness
  • Carotid Artery Flow Time
  • Passive Leg Raise

Interventions

OTHER

Carotid Doppler Measurement in response to passive leg raise

The investigators will measure Carotid Flow time in the semi-recumbent position, then lay the patient flat and do a passive leg raise. The investigators will then meausre Carotid Flow Time at 1 minute, 2 minutes, and 3 minutes. Patients who have 10 % increase in stroke volume on the Flotrac / Vigileo monitor will be considered fluid responders. The investigators will try to identify an optimum % increase of Carotid Flow Time that can predict fluid responsiveness.

Sponsors & Collaborators

  • University of Louisville

    lead OTHER

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-06-30
Primary Completion
2015-11-30
Completion
2015-11-30

Countries

  • United States

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 NCT02789124 on ClinicalTrials.gov