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Correlation of Carotid Flow Time and Cardiac Output.

NCT04614701 · Status: WITHDRAWN · Type: OBSERVATIONAL

Last updated 2022-06-27

No results posted yet for this study

Summary

Assessment of common carotid artery flow is more easily done and can be taught more broadly than transthoracic echocardiography, providing a greater number of clinicians a tool to assess volume responsiveness. These assessments are of great importance to patients with COVID-19, who often present with hypotension requiring fluids, which must be balanced against limiting fluid administration to minimize pulmonary edema.

Conditions

  • Volume Responsiveness

Interventions

PROCEDURE

Carotid Artery Ultrasound Measure

Cardiac output will be assessed by measuring the LVOT diameter in parasternal long-axis window and the LVOT VTI in apical-four window. Carotid artery flow will be measured on the right neck 1-2cm from the bifurcation of the common carotid artery. All measurements will be taken with participants supine and the head of the bed elevated to 45°. measures all at 3 minute intervals. 1. One-leg compression test: Thigh-sized blood pressure cuff inflated to 60mmHg on middle part of one thigh for 60 seconds. LVOT and CCA measurements taken separately. 2. Two-leg compression test: Thigh-sized blood pressure cuff inflated on middle part of both thighs for 60 seconds. LVOT and CCA measurements taken separately. 3. Passive leg raise test: Bed adjusted to place participant at 0° and legs elevated at 45° by use of pillows. After 1 minute, measurements repeated. LVOT and CCA measurements taken separately.

Sponsors & Collaborators

  • St. Boniface Hospital

    lead OTHER

Principal Investigators

  • Rakesh C Arora, MD · St. Boniface Hospital

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-09-01
Primary Completion
2022-12-31
Completion
2023-03-31

Countries

  • Canada

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 NCT04614701 on ClinicalTrials.gov