320 Multidetector Computed Tomography Prior to Coronary Artery Bypass Surgery

March 13, 2013 updated by: University of Edinburgh

320 Multidetector Computed Tomography in the Preoperative Assessment for Coronary Artery Bypass Graft Surgery

Recent advances in technology have resulted in the development of scanners that can n image the heart arteries within 10 to 20 minutes but without the need for admission to hospital or insertion of catheters. This means that coronary heart disease may be more readily identified (or ruled out) and allow better diagnosis and treatment of patients with symptoms suggesting coronary heart disease. Here, we propose to assess the latest and most powerful scanners to see if it can accurately diagnose the extent of coronary artery disease and facilitate the planning of heart surgery.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Study Type

Observational

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
    • Scotland
      • Edinburgh, Scotland, United Kingdom, EH16 4SA
        • Royal Infirmary of Edinburgh

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Outpatients awaiting cardiac surgery.

Description

Inclusion Criteria:

  • patients who have undergone conventional coronary angiography and have been referred for coronary artery bypass surgery or valve replacement

Exclusion Criteria:

  • age less than 18
  • pregnancy or breast feeding
  • inability to undergo computed tomography scanning
  • inability to give informed consent
  • severe renal failure (serum creatinine >250umol/l or estimated glomerular filtration rate <15ml/min)
  • known allergy to iodinated contrast

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Patients awaiting cardiac surgery
Radiation: Computed tomography scan
Computed tomography will be performed using a 320 multidetector computed tomography scanner and may include coronary calcium score, coronary angiography and myocardial perfusion scanning.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Coronary artery stenosis defined qualitatively by trained observers and quantitatively by computer software
Time Frame: 1 month
1 month

Secondary Outcome Measures

Outcome Measure
Time Frame
Myocardial perfusion defects defined qualitatively by trained observers and quantitatively by computer software
Time Frame: 1 month
1 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Edinburgh

Investigators

  • Principal Investigator: David E Newby, PhD BM DM, University of Edinburgh

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2010

Study Registration Dates

First Submitted

July 14, 2010

First Submitted That Met QC Criteria

July 23, 2010

First Posted (Estimate)

July 26, 2010

Study Record Updates

Last Update Posted (Estimate)

March 14, 2013

Last Update Submitted That Met QC Criteria

March 13, 2013

Last Verified

March 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2009/R/CAR/17

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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