NCT00188994

Brief Summary

The purpose of this investigation is to develop a means to improve the recovery of cardiac metabolism and ventricular function following coronary artery bypass surgery (CABG) in patients with poor preoperative ventricular function (e.g. ejection fraction \<40%).

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
800

participants targeted

Target at P75+ for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 1999

Completed
6.1 years until next milestone

First Submitted

Initial submission to the registry

September 13, 2005

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 16, 2005

Completed
Last Updated

December 29, 2005

Status Verified

July 1, 2005

First QC Date

September 13, 2005

Last Update Submit

December 28, 2005

Conditions

Left Ventricular Dysfunction

Keywords

Myocardial ProtectionMyocardial MetabolismVentricular FunctionCardiovascular DiseaseCardioplegic Additives

Outcome Measures

Primary Outcomes (1)

  • Low Output Syndrome

Secondary Outcomes (1)

  • Total Troponin I Release

Interventions

Insulin CardioplegiaDRUG

Eligibility Criteria

Age0 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Patient has been referred for isolated coronary bypass surgery.
  • LV grade 3 or 4, LVEF \<40% by angio, echo, RNA.

You may not qualify if:

  • Patient is undergoing reoperative surgery (i.e., has had any previous cardiac surgery)
  • Surgeon has planned another procedure in addition to coronary bypass surgery (e.g., valve repair, replacement, ascending aorta repair or replacement, left ventricular aneurysm resection, repair of congenital defect, carotid surgery, repair of abdominal aortic aneurysm).
  • Patient is scheduled for minimally invasive surgery.
  • More recent assessment of LV function with LV grade 1 0r 2, LVEF\>40%.
  • or 6 days post MI.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Health Network

Toronto, Ontario, M5G 2C4, Canada

RECRUITING

Related Publications (1)

  • 1. Yau,TM, Fedak PWM, Weisel RD, Teng C, Ivanov J. Predictors of operative risk for coronary bypass operations in patients with left ventricular dysfunction. J Thorac Cardiovasc Surg 1999; 118:1006-1013. 2. RaoV, Ivanov J, Weisel RD, Ikonomidis JS, Christakis GT, David TE. Predictors of low cardiac output syndrome after coronary artery bypass. J Thorac Cardiovasc Surg 1996; 112:38-51. 3. Yau TM, Weisel RD, Mickle DAG, et al: Optimal delivery of blood cardioplegia. Circulation 1991; 84 (SAuppl II):II-380-388. 4. Yau TM, Weisel RD, Mickle DAG, et al: Alternative techniques of cardioplegia. Circulation 1992; 86(Suppl II):II-377-384. 5. Yau TM, Ikonomidis JS, Weisel RD, et al: Which techniques of cardioplegia prevent ischemia? Ann Thorac Surg 1993; 56:1020-1028. 6. Yau TM, Ikonomiodis JS, Weisel RD, et al: Ventricular function after normothermic versus hypothermic cardioplegia. J Thorac Cardiovasc Surg 1993; 105:883-844. 7. Rao V, Merante F, Weisel RD, Shirai T, Ikonomidis JS, Cohen G, Tumiati LC, Shiono N, Li RK, Mickle DAG, Robinson BH. Insulin stimulates pyruvate dehydrogenase and protects human ventricular cardiomyocytes from simulated ischemia. J Thorac Cardiovasc 1998; 116:485-94. 8. Rao V, Borger MA, Weisel RD, Ivanov J, Christakis GT, Cohen G, Yau TM,. Insulin cardioplegia for elective coronary bypass surgery. J Thorac Cardiovasc Surg 2000; 119: 1176-1184. 9. Yau TM, Mickle DAG, Weisel RD: Myocardial free radical reperfusion injury during cardiac surgery, in Kron IL, Mavroudis C (eds): Frontiers in cardiovascular surgical research: State of Art Reviews: Cardiac Surgery. Hanley & Belfus, 1990; 703-712. 10. Christakis GT, Weisel RD, Fremes SE, Ivanov J, David TE, Goldman BS, Salerno TA and the Cardiovascular Surgeons of the University of Toronto, Coronary Artery bypass grafting in patients with poor ventricular function. J Thorac Cardiovasc Surg 1992; 103:1083-1092.

    BACKGROUND

MeSH Terms

Conditions

Ventricular Dysfunction, LeftCardiovascular Diseases

Condition Hierarchy (Ancestors)

Ventricular DysfunctionHeart Diseases

Study Officials

  • Terrence M. Yau

    21st Century Cardiac Surgical Society, Council on Cardiovascular and Thoracic Surgery (American Heart Association), Canadian Cardiovascular Society, Royal College of Physicians and Surgeons, Institute of Medical Sciences (University of Toronto)

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Chet Jabier-Nacario, BScN

CONTACT

416-340-4800chet.nacario@uhn.on.ca

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

September 13, 2005

First Posted

September 16, 2005

Study Start

August 1, 1999

Last Updated

December 29, 2005

Record last verified: 2005-07

Locations

CA(1)