The Association of Endothelial Dysfunction and Cardiac Allograft Vasculopathy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00173914
Recruitment Status : Unknown
Verified September 2005 by National Taiwan University Hospital.
Recruitment status was:  Recruiting
First Posted : September 15, 2005
Last Update Posted : September 15, 2005
Information provided by:
National Taiwan University Hospital

Brief Summary:

Progressive cardiac allograft vasculopathy (CAV) is a serious complication in long-term survivors after heart transplantation. Therefore, we hypothesize that CAV is a diffuse and progressive process, and endothelial function may play an important role in predicting clinical outcome after heart transplantation. Therefore, this single-blinded study is designed to evaluate endothelial function, microvascular flow response and morphology of coronary artery in cardiac allografts,

  1. The simultaneous use of IVUS and Doppler wire instrumentation in different pharmacological stress;
  2. Tl-201 SPECT (dipyridamole stress/rest); to evaluate the correlation of endothelial function, coronary morphology change and Tl-201 dipyridamole stress myocardial perfusion image.

Condition or disease
Heart Transplantation

Study Type : Observational
Enrollment : 100 participants
Observational Model: Defined Population
Observational Model: Natural History
Time Perspective: Cross-Sectional
Time Perspective: Prospective
Study Start Date : March 2003

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Ages Eligible for Study:   20 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

1. Heart transplant receipients who undergoing the coronary angiographic follow-up as standard protocols.

Exclusion Criteria:

  1. Acute illness conditions including infection, congestive heart failure (NYHA Fc III, IV), etc.
  2. Coronary angiographic finding: coronary stenosis>30% (as grade III, IV by Klauss V et al, Am J Cardiol 1995; 76:463-6).
  3. Creatinine >3.0 mg/dl

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00173914

Contact: Chii-Ming Lee, MD, phD 886-2-23123456 ext 5057

National Taiwan University Hospital Recruiting
Taipei, Taiwan
Contact: Chii-Ming Lee, MD, phD    886-2-23123456 ext 5057   
Sponsors and Collaborators
National Taiwan University Hospital
Principal Investigator: Chii-Ming Lee, MD, phD National Taiwan University Hospital Identifier: NCT00173914     History of Changes
Other Study ID Numbers: 9200000478
NTUH 92M011
First Posted: September 15, 2005    Key Record Dates
Last Update Posted: September 15, 2005
Last Verified: September 2005

Keywords provided by National Taiwan University Hospital:
1. Transplant vasculopathy
2. Endothelial dysfunction
3. Myocardial perfusion imaging
4. Intravascular vascular ultrasound