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To Compare the Ischemic Pre-conditioning and Post-conditioning on Reperfusion Injury in Humans.

This study has been completed.
Information provided by (Responsible Party):
Arshed A. Quyyumi, Emory University Identifier:
First received: October 3, 2006
Last updated: November 15, 2013
Last verified: November 2013

Reperfusion Injury occurs by the sudden blood flow to the injured and ischemic myocardium during restoration of blood flow either by Mechanical revascularization or thrombolysis. A phenomenon known as Pre-conditioning has been identified to limit the the extent and severity of reperfusion injury but it is very difficult to apply it in patient care setting as timing of acute cardiac or neurologic ischemic event is difficult to reliably predict.

Postconditioning or ischemic postconditioning is well known to attenuate the reperfusion injury. There is enough data that shows the benefit of post conditioning in reducing the reperfusion injury in animals. However postconditioning in humans has not been investigated.

We hypothesize that Post conditioning will attenuate the reperfusion injury and will be comparable to the effect of preconditioning in humans.

Endothelial Dysfunction

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: The Mechanism of Ischemic Post Conditioning in Humans, Minimizing Reperfusion Injury.

Further study details as provided by Arshed A. Quyyumi, Emory University:

Estimated Enrollment: 20
Study Start Date: May 2006
Estimated Study Completion Date: August 2006
  Show Detailed Description


Ages Eligible for Study:   15 Years to 35 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Male and female volunteers between the ages of 18 and 35.
  • Able to give informed and witnessed consent.
  • Don't have the following risk factor

    1. Non smoker
    2. LDL<180, HDL>30, TG<200 or LDL/HDL<6.0
    3. Does not have diabetes mellitus .
    4. BP < 135/85
    5. Do not have family history defined as a parent or sibling with coronary disease diagnosed before age 40. .

Exclusion Criteria:

  • Patients with significant medial illness for which they are receiving continued monitoring or treatment, known cardiovascular disease, or risk factors for coronary artery disease are excluded. These risk factors include

    1. Smoking
    2. Hyperlipidemia defined as and LDL>180, HDL<30, TG>200 or LDL/HDL>6.0
    3. Diabetes mellitus
    4. Hypertension,
    5. Strong family history defined as a parent or sibling with coronary disease diagnosed before age 40.

The exclusion criteria are to prevent the confounding effects of atherosclerosis or other medical conditions in our study.

  Contacts and Locations
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Please refer to this study by its identifier: NCT00385151

United States, Georgia
Emory University Hospital
Atlanta, Georgia, United States, 30322
Sponsors and Collaborators
Emory University
Principal Investigator: Tarek Helmy, MD Emory University
Principal Investigator: Arshed Ali Quyyumi, MD Emory University
Study Director: Muhammad Amer, MD Emory University
  More Information

Responsible Party: Arshed A. Quyyumi, Principal Investigator, Emory University Identifier: NCT00385151     History of Changes
Other Study ID Numbers: 0920-2004
Study First Received: October 3, 2006
Last Updated: November 15, 2013

Keywords provided by Arshed A. Quyyumi, Emory University:
Post conditioning

Additional relevant MeSH terms:
Reperfusion Injury
Vascular Diseases
Cardiovascular Diseases
Postoperative Complications
Pathologic Processes processed this record on September 21, 2017