Try our beta test site

Systematic Assessment of Competitive Flow in Coronary Artery Bypass Grafts by Wave Intensity Analysis

This study is currently recruiting participants. (see Contacts and Locations)
Verified February 2017 by Imperial College London
Sponsor:
Information provided by (Responsible Party):
Imperial College London
ClinicalTrials.gov Identifier:
NCT01118468
First received: May 5, 2010
Last updated: February 6, 2017
Last verified: February 2017

May 5, 2010
February 6, 2017
January 2010
December 2019   (Final data collection date for primary outcome measure)
Not Provided
Not Provided
Complete list of historical versions of study NCT01118468 on ClinicalTrials.gov Archive Site
Not Provided
Not Provided
Not Provided
Not Provided
 
Systematic Assessment of Competitive Flow in Coronary Artery Bypass Grafts by Wave Intensity Analysis
Systematic Assessment of Competitive Flow in Coronary Artery Bypass Grafts by Wave Intensity Analysis
Narrowing of the arteries that supply blood to the heart can lead to heart attacks and death. One way of treating this is to use artery and vein grafts from other parts of the body to bypass the narrowing. However, the blood flow from these grafts "competes" with flow through the natural coronary artery. This may contribute to grafts narrowing with time. This protocol aims to determine the pressure changes responsible for this effect. This could improve our understanding of why some grafts last longer than others.
Not Provided
Observational
Observational Model: Other
Time Perspective: Prospective
Not Provided
Not Provided
Non-Probability Sample
Patients with previous bypass grafts undergoing angiography/ angioplasty who meet stduy criteria
Coronary Artery Bypass
Not Provided
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
40
December 2019
December 2019   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Patients with previous coronary artery bypass grafts undergoing coronary angiography and graft restudy

Exclusion Criteria:

  • Patient's with cardiac pacemakers, valvular heart disease, and chronic renal failure
  • Unable to consent
  • Contraindications to adenosine
  • Contraindications to cardiac MRI
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
No
Contact: Justin E Davies, MRCP, PhD 020 7594 33 86 justin.davies@imperial.ac.uk
Contact: Sayan Sen, MRCP 020 7594 33 86 sayan.sen@imperial.ac.uk
United Kingdom
 
 
NCT01118468
1426
Yes
Not Provided
Not Provided
Not Provided
Imperial College London
Imperial College London
Not Provided
Principal Investigator: Justin E Davies, MRCP PhD Imperial College London
Imperial College London
February 2017

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP