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Etiology and Prevalence of Peripheral Arterial Disease

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: May 26, 2000
Last Update Posted: February 29, 2016
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.
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)
To determine the prevalence of peripheral arterial disease in a defined population by non-invasive techniques; to evaluate the association of cardiovascular disease risk factors with peripheral vascular disease; to determine whether non-invasive tests of peripheral arterial disease can be utilized as markers for coronary heart disease; to determine the status of the microvasculature using conjunctival photographs and to compare the results with risk factors and the peripheral arterial disease testing results.

Cardiovascular Diseases Peripheral Vascular Diseases Arterial Occlusive Diseases

Study Type: Observational

Resource links provided by NLM:

Further study details as provided by National Heart, Lung, and Blood Institute (NHLBI):

Study Start Date: July 1978
Study Completion Date: March 1990
Detailed Description:


Atherosclerosis is frequently generalized, affecting blood vessels in various parts of the body. Previous studies had noted the strong association between peripheral arterial disease and coronary heart disease and the similarity of risk factors, particularly diabetes and cigarette smoking for both diseases. The natural history of peripheral arterial disease had not been delineated because of the lack, until recently, of accurate and reliable non-invasive testing.


All 624 subjects were initially studied under a Lipid Research Clinic protocol that involved two evaluations, visit 1 and visit 2. At visit 2, half of the subjects were from a random sample of the LRC visit 1 cohort and others were selected from the visit 1 cohort for hyperlipidemia, defined as being at or above age- and sex-specific 90th percentiles for cholesterol or 95th percentiles for triglycerides or taking lipid-lowering medications. At visit 2, the subjects were characterized as to age; sex; drug, diet, alcohol and smoking history; personal and family history of cardiovascular disease; Rose questionnaire; and electrocardiogram and examination by a cardiologist. The subjects were given a traditional manual examination for peripheral arterial disease and four non-invasive tests including segmental blood pressure, flow velocity by Doppler ultrasound, postocclusive reactive hyperemia, and pulse reappearance half-time. The subjects were categorized into large vessel peripheral arterial disease, isolated small vessel peripheral arterial disease or normal based on the results of non-invasive testing and followed for an average of four years.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.


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Ages Eligible for Study:   up to 100 Years   (Child, Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
No eligibility criteria
  Contacts and Locations
No Contacts or Locations Provided
  More Information


ClinicalTrials.gov Identifier: NCT00005142     History of Changes
Other Study ID Numbers: 1013
R01HL022255 ( U.S. NIH Grant/Contract )
First Submitted: May 25, 2000
First Posted: May 26, 2000
Last Update Posted: February 29, 2016
Last Verified: June 2000

Additional relevant MeSH terms:
Cardiovascular Diseases
Vascular Diseases
Peripheral Arterial Disease
Peripheral Vascular Diseases
Arterial Occlusive Diseases