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The Effects of External Counter Pulsation Therapy on Circulating Endothelial Progenitor Cells

This study has been completed.
Information provided by:
Sheba Medical Center Identifier:
First received: January 4, 2006
Last updated: January 29, 2006
Last verified: January 2006
The objectives of the study are to test the hypothesis that external counter pulsation therapy (ECPT) provides clinical benefit by improving the number and function of endothelial progenitor cells (EPCs) in peripheral blood of patients with angina pectoris.

Condition Intervention
Coronary Artery Disease Procedure: External counter pulsation therapy

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: The Effects of External Counter Pulsation Therapy (ECPT) on the Number and Function of Circulating Endothelial Progenitor Cells in Patients With Angina Pectoris

Resource links provided by NLM:

Further study details as provided by Sheba Medical Center:

Primary Outcome Measures:
  • The number of circulating endothelial progenitor cells in peripheral blood (before and one week after treatment)

Secondary Outcome Measures:
  • Brachial artery endothelial function (before and one week after treatment)
  • CCS angina class (before and one week after treatment)

Estimated Enrollment: 25
Study Start Date: August 2004
Estimated Study Completion Date: January 2006
Detailed Description:

ECPT is a non-invasive approach for increasing blood flow to the heart in patients with myocardial ischemia. ECPT produces beneficial effects in coronary artery disease (CAD) patients. However, the exact mechanisms of ECPT action are not defined yet. Evidence has now accumulated that bone marrow-derived cells with angiogenic capability, termed EPCs, circulate in the blood of adults. EPCs possess the ability to home to sites of ischemia and contribute to neoangiogenesis.

We prospectively study CAD patients [Canadian Cardiovascular Society (CCS) angina class II-IV], before and after ECPT , and compare them with age- and sex-matched controls. Peripheral blood CD34+ cells, EPCs (CD34/VEGFR2+ cells), EPC colony forming units (CFUs) and brachial artery endothelial function is assessed prior to and after ECPT. Percent improvement in endothelium-dependent brachial artery flow-mediated dilatation (%FMD) is assessed using high-resolution ultrasound.


Ages Eligible for Study:   40 Years to 90 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • coronary artery disease
  • CCS angina class II-IV

Exclusion Criteria:

  • aortic regurgitation
  • acute myocardial infarction <3 months
  • systemic hypertension >180/110 mm
  • atrial fibrillation
  • deep vein thrombosis
  • phlebitis and hemorrhagic diathesis
  • pregnancy
  • abdominal aortic aneurism
  • metastatic tumor
  Contacts and Locations
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Please refer to this study by its identifier: NCT00272571

Neufeld cardiac research institute, Sheba medical center
Tel Hashomer, Israel
Sponsors and Collaborators
Sheba Medical Center
Principal Investigator: Jonathan Leor, Prof. Chaim Sheba Medical Center
  More Information Identifier: NCT00272571     History of Changes
Other Study ID Numbers: SHEBA-02-2701-JL-CTIL
Study First Received: January 4, 2006
Last Updated: January 29, 2006

Keywords provided by Sheba Medical Center:
ECPT, endothelial progenitor cells

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases processed this record on July 21, 2017