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Effect of Remote Preconditioning in Patients Undergoing Off-pump Coronary Artery Bypass Graft Surgery

This study has been completed.
Sponsor:
Information provided by:
Seoul National University Hospital
ClinicalTrials.gov Identifier:
NCT00889811
First received: April 28, 2009
Last updated: October 7, 2009
Last verified: October 2009
History of Changes
  Purpose

In recent several clinical trials, remote preconditioning showed very powerful myocardial protection. However, the myocardial protective effect by remote preconditioning was not evaluated on the patients undergoing off pump coronary artery bypass graft surgery (OPCAB).

The investigators hypothesized that the lower limb remote preconditioning could protect the myocardium during the OPCAB. In this study, the investigators will try to evaluate whether remote preconditioning could induce myocardial protection on the OPCAB patients.


Condition Intervention Phase
Ischemic Heart Disease
 Procedure: remote ischemic preconditioning
 Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Prevention
Official Title: Effect of Lower Limb Remote Preconditioning on Myocardial Injury in Patients Undergoing Off-pump Coronary Artery Bypass Graft Surgery

Resource links provided by NLM:

U.S. FDA Resources

Further study details as provided by Seoul National University Hospital:

Primary Outcome Measures:
  • postoperative serum troponin I levels [ Time Frame: postoperatibe 1, 6, 12, 24, 48, 72 hr ] [ Designated as safety issue: Yes ]

Enrollment: 68
Study Start Date: March 2009
Study Completion Date: August 2009
Primary Completion Date: July 2009 (Final data collection date for primary outcome measure)
Intervention Details:
    Procedure: remote ischemic preconditioning
    remote ischemic preconditioning (4 x 5 min lower limb ischemia with pneumatic cuff up to 200 mmHg with an intervening 5 min reperfusion; 2 cycles; before and after the coronary anastomosis )
    Other Name: Blood pressure pneumatic cuff
Detailed Description:

In recent two clinical trials on the patients undergoing cardiac surgery, remote preconditioning showed very powerful myocardial protection by simple and safe procedures such as the brief inflation of pneumatic tourniquet on the upper or lower limb. However, despite these impressive results, the clinical studies are lacking yet. Moreover, two previous studies were done on the cardiac surgery with cardiopulmonary bypass. Considering different mechanism, level of myocardial injury and the increasing popularity of OPCAB, we need the clinical study on remote preconditioning with the OPCAB patients.

In this study, we will conduct randomized controlled clinical trials in which the remote preconditioning was induced by lower limb ischemia with double-blinded technique. Myocardial injury will be assessed by postoperative serum troponin I levels and they will be compared with those of control group.

  Eligibility

Ages Eligible for Study:   18 Years to 80 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Adult patients undergoing elective off pump coronary artery bypass graft surgery

Exclusion Criteria:

  • unstable angina
  • preoperative use of inotropics or mechanical assist device,
  • left ventricular ejection fraction less than 30%,
  • major combined operation such as aortic surgery or carotid endarterectomy,
  • severe liver, renal and pulmonary disease,
  • recent myocardial infarction (within 7 days),
  • recent systemic infection or sepsis (within 7 days)
  • peripheral vascular disease affecting lower limbs
  • amputation of the lower limbs
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00889811

Locations
Korea, Republic of
Seoul National University Hospital
Seoul, Korea, Republic of, 110-744
Sponsors and Collaborators
Seoul National University Hospital
Investigators
Study Director: YunSeok Jeon, Professor Department of Anesthesiology and Pain Medicine, SNUH
  More Information

No publications provided by Seoul National University Hospital

Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Responsible Party: Jeon, YunSeok, Seoul National University Hospital
ClinicalTrials.gov Identifier: NCT00889811     History of Changes
Other Study ID Numbers: H-0806-060-247
Study First Received: April 28, 2009
Last Updated: October 7, 2009
Health Authority: South Korea: Korea Food and Drug Administration (KFDA)

Keywords provided by Seoul National University Hospital:
OPCAB
RIPC

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Heart Diseases
Coronary Disease
 Cardiovascular Diseases
Arteriosclerosis
Arterial Occlusive Diseases
Vascular Diseases

ClinicalTrials.gov processed this record on May 21, 2013