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Respirophasic Carotid Artery Peak Velocity Variation as a Predictor of Fluid Responsiveness in Patients With Coronary Disease

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01836081
Recruitment Status : Completed
First Posted : April 19, 2013
Last Update Posted : April 19, 2013
Information provided by (Responsible Party):
Yonsei University

Brief Summary:
The aim of this study is to investigate usefulness of the respirophasic variation in carotid artery peak flow velocity measured by Doppler ultrasound, which is noninvasive and easily accessible, as a predictor of fluid responsiveness in patients with coronary artery disease.

Condition or disease Intervention/treatment Phase
Coronary Artery Occlusive Disease Other: Volume expansion Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 40 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Study Start Date : December 2011
Actual Primary Completion Date : December 2012
Actual Study Completion Date : December 2012

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: fluid responsiveness Other: Volume expansion
Other Name: volume expansion with 6 mL/kg of 6% hydroxylethyl starch 130/0.4

Primary Outcome Measures :
  1. Predictive power of the respirophasic carotid flow peak velocity variation for the fluid responsiveness [ Time Frame: Measurement of respirophasic carotid flow peak velocity variation before the volume expansion ]
    After induction of anesthesia, peak velocity of carotid artery blood flow is measured by the pulsed wave Doppler signal obtained from the left common carotid artery. Respirophasic variation of the peak velocity is defined as the difference between the maximum and the minimum values of peak velocity divided by the mean of the two values during one respiratory cycle. Fluid responder is defined as a patient whose stroke volume index is increased ≥15% after volume expansion. The receiver operating characteristic curve analysis to descriminiate fluid responder is performed.

Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

1. patients scheduled for elective isolated off-pump coronary artery bypass graft surgery

Exclusion Criteria:

  1. cardiac rhythm other than sinus
  2. congestive heart failure
  3. left ventricular ejection fraction <35%
  4. history of transient ischemic attack
  5. pre-existing cerebrovascular disease and peripheral arterial occlusive disease
  6. presence of carotid artery stenosis >50%

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01836081

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Korea, Republic of
Yonsei University College of Medicine
Seoul, Korea, Republic of, 120-752
Sponsors and Collaborators
Yonsei University
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Yonsei University Identifier: NCT01836081    
Other Study ID Numbers: 4-2011-0687
First Posted: April 19, 2013    Key Record Dates
Last Update Posted: April 19, 2013
Last Verified: April 2013
Keywords provided by Yonsei University:
fluid responsiveness
carotid artery peak velocity variation
coronary disease
Additional relevant MeSH terms:
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Coronary Disease
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases