MACCE After Endoscopic Vein Harvest for CABG

Study Overview
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Brief Summary
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Most patients undergoing coronary artery bypass grafting (CABG) will require long saphenous vein (LSV) harvesting from the leg. This has been reported to be associated with a significant morbidity (leg swelling, pain, infection, bruising, wound discharge) in up to 50% of patients. Endoscopic vein harvesting (EVH) which has been reported to be associated with a reduction in these complications was implemented within the investigators' service in 2012. Although some initial reports of concerns regarding graft patency when the LSV is harvested by EVH, NICE and European Cardiology Society (ESC/EACTS) guidelines 2014 supported the use of the EVH technology. Last year a service evaluation in the investigators' department showed significant cost benefit of EVH as compared to open vein harvest (OVH) in a matched group (50 EVH and 50 OVH patients). The purpose of this study is to evaluate this group further to assess the incidence of MACCE (Major adverse cardiac and cerebrovascular event) and patient's quality of life (QOL) at least 1 year after their surgery. MACCE will be assessed by contacting the patient's GP and/or Cardiologist and QOL questionnaire (SF12v2) will be sent to patients along with a patient information sheet. It is estimated that data collection would be completed within 3 months of start.

Official Title
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Major Adverse Cardiac and Cerebrovascular Event (MACCE) & Patients' Quality of Life (QOL) After Endoscopic Vein Harvesting as Compared to Open Vein Harvest for Coronary Artery Bypass Grafting

Conditions
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Complications Due to Coronary Artery Bypass Graft

Intervention / Treatment
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* Other: Quality of Life Questionnaire
* Other: MACCE review


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient underwent CABG (isolated or combined) during period Jan 2012 to Dec 2013 LSV harvested by EVH (Study group) LSV Harvested by OVH matched with EVH group (Control group) Exclusion Criteria: 1. Patient deceased at time of study start

Ages Eligible for Study
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Minimum Age: 40 Years
Maximum Age: 85 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| EVH<br>Patients that have undergone Endoscopic Vein Harvesting (EVH) | Other: Quality of Life Questionnaire<br>* Quality of Life Questionnaire will be completed at least 1 year after their surgery.<br>Other: MACCE review<br>* MACCE will be assessed by contacting the patient's GP and/or Cardiologist at least 1 year after their surgery.<br>|
| OVH<br>Patients that have undergone open vein harvest (OVH) | Other: Quality of Life Questionnaire<br>* Quality of Life Questionnaire will be completed at least 1 year after their surgery.<br>Other: MACCE review<br>* MACCE will be assessed by contacting the patient's GP and/or Cardiologist at least 1 year after their surgery.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| MACCE in patients undergoing CABG where the LSV is harvested by EVH as compared to OVH | The review of MACCE will occur at least 1 year after the patient's operation | approximately 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| QOL as assessed by the SF12v2 questionnaire | The review of QOL will occur at least 1 year after the patient's operation | approximately 1 year | 
| Time taken to return to regular daily activities | The review of time taken to return to regular daily activities will occur at least 1 year after the patient's operation | approximately 1 year | 
| Survival |  | at approximately 1 year |