This site became the new on June 19th. Learn more.
Show more Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more... Menu
Give us feedback

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

This study has been completed.
Information provided by (Responsible Party):
Yonsei University Identifier:
First received: April 10, 2013
Last updated: April 18, 2013
Last verified: April 2013
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 Intervention
Coronary Artery Occlusive Disease Other: Volume expansion

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic

Resource links provided by NLM:

Further study details as provided by Yonsei University:

Primary Outcome Measures:
  • 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.

Enrollment: 40
Study Start Date: December 2011
Study Completion Date: December 2012
Primary Completion Date: December 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: fluid responsiveness Other: Volume expansion
Other Name: volume expansion with 6 mL/kg of 6% hydroxylethyl starch 130/0.4


Ages Eligible for Study:   20 Years and older   (Adult, Senior)
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%
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01836081

Korea, Republic of
Yonsei University College of Medicine
Seoul, Korea, Republic of, 120-752
Sponsors and Collaborators
Yonsei University
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Yonsei University Identifier: NCT01836081     History of Changes
Other Study ID Numbers: 4-2011-0687
Study First Received: April 10, 2013
Last Updated: April 18, 2013

Keywords provided by Yonsei University:
fluid responsiveness
carotid artery peak velocity variation
coronary disease

Additional relevant MeSH terms:
Coronary Disease
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases processed this record on September 21, 2017