The accuracy of ultrasound derived carotid artery flow compared to conventional intravascular methods

Completed

• Conditions: blood flow measurements; non-invasive cardiac output monitoring; 10082206; 10011954

• Registration Number: NL-OMON49326
• Lead Sponsor: Academisch Medisch Centrum

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Last Update Posted: 9 April 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Not specified
• Target Recruitment: 18

Inclusion Criteria

- Adult patient (age > 18 years)
- Elective coronary arterial bypass graft surgery and/or valve surgery
- Informed consent

Exclusion Criteria

- Significant aortic valve stenosis > 30% without indication for valve repair,
or abnormal anatomy of aortic, femoral, carotid or brachial artery 16
- Cerebrovascular accident
- Atrial fibrillation or arrhythmias
- COPD stage 3-4
- Severe heart valve regurgitation or stenosis
- Inability to measure carotid artery blood flow or too low bifurcation
- Contra-indications for femoral arterial catheter placement (e.g., vascular
graft)

Study & Design

• Study Type: Observational invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>The accuracy of CO measured by ultrasound of the carotid blood flow will be<br /><br>compared to (1) thermodilution cardiac output measurement, (2) pulse-contour<br /><br>cardiac output measurement and (3) pulse-contour based non-invasive cardiac<br /><br>output measurement. These measurements are performed shortly after defined<br /><br>events in ICU patients when changes in the SVR are expected.The accuracy will<br /><br>be assessed by Bland-Altman analysis. We will describe if the limit of<br /><br>agreements are between ±30%. </p><br>