Comparison of Saphenous Vein Graft Harvested From Upper Versus Lower Leg in Coronary Artery Bypass Grafting (COSAVEGUL-1)

June 30, 2016 updated by: Ki-Bong Kim, Seoul National University Hospital

A Comparison of Histologic and Immunohistochemical Characteristics Between the Upper and Lower Leg Saphenous Veins Used for Coronary Artery Bypass Grafting

In coronary artery bypass grafting, saphenous veins are widely used as a composite grafts that are Y-anastomosed to in-situ left internal thoracic artery. Based on our observation that remodeling of saphenous vein graft differs between those harvested from upper leg vein and lower leg, this study aims to compare histologic and immunohistochemical findings between saphenous vein grafts harvested from upper leg and lower leg.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Inclusion criteria:

  • Patients aged from 40 to 75 years with triple vessel disease
  • Patients who are eligible for the use of left internal thoracic artery as an in situ primary conduit
  • Operation plan: saphenous vein graft will be Y-anastomosed to left internal thoracic artery.
  • Patients whose saphenous vein grafts can be harvested from both upper legs and lower legs
  • Patients who are eligible for off-pump coronary artery bypass grafting
  • Patients who agreed with the participation in the research based on thorough explanation.

Patients will be randomly assigned to upper leg vein (ULV) group and lower leg vein (LLV) group immediately after anesthetic induction.

Pieces of residual saphenous vein graft will be sent for histologic and immunohistochemical examination for the evaluation of endothelial cell preservation and the expression of matrix proteins.

Study Type

Interventional

Enrollment (Actual)

26

Phase

  • Not Applicable

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

  • Korea, Republic of
      • Seoul, Korea, Republic of, 110-744
        • Seoul National University Hospital

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

40 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients with multivessel disease who were planned to undergo off-pump coronary artery bypass grafting
  • Patients whose left internal thoracic arteries can be used, and whose saphenous vein grafts will be Y-anastomosed to left internal thoracic arteries.
  • Patients whose saphenous vein grafts can be harvested from both upper and lower legs.

Exclusion Criteria:

  • Patients with overt heart failure symptoms
  • Patients with intractable ventricular arrhythmia
  • Patients with history of cancer or malignancy
  • Patients with coagulation or other hematologic disorder
  • Patients who needs concomitant cardiac procedures

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Upper leg vein
Upper leg vein harvesting
Procedure: Upper leg vein harvesting
Patients whose saphenous veins are harvested from upper legs.
Active Comparator: Lower leg vein
Lower leg vein harvesting
Procedure: Lower leg vein harvesting
Patients whose saphenous veins are harvested from lower legs.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Endothelial preservation of saphenous vein graft
Time Frame: 1 year
Participants will be followed for the duration of hospital stay, an expected average of 1 week.
1 year

Collaborators and Investigators

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

Sponsor

Seoul National University Hospital

Investigators

  • Principal Investigator: Ki-Bong Kim, M.D., Ph.D., Seoul National University Hospital

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

October 1, 2013

Primary Completion (Actual)

April 1, 2015

Study Completion (Actual)

June 1, 2016

Study Registration Dates

First Submitted

October 26, 2013

First Submitted That Met QC Criteria

October 26, 2013

First Posted (Estimate)

November 1, 2013

Study Record Updates

Last Update Posted (Estimate)

July 4, 2016

Last Update Submitted That Met QC Criteria

June 30, 2016

Last Verified

June 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SNUHTS_KBKim_Saphenous

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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