Pilot Study to Determine the Optimal Technique for Measurement of Ankle Blood Pressures

November 10, 2009 updated by: Summit Doppler Systems, Inc.

Pilot Study to Determine the Optimal Oscillometric-Based Technique for Measurement of Ankle Blood Pressures for the Ankle-brachial Index

Peripheral arterial disease (PAD) is a highly prevalent medical condition. Patients with PAD are usually diagnosed on the basis of the ankle-brachial index. The ankle-brachial index is the ratio of ankle pressure to arm pressure based on measurement of blood pressures in the arms and legs using a Doppler device. The need for dedicated equipment and trained personnel, along with the time required to perform the test, have been identified as barriers to widespread implementation of ankle-brachial index screening. The use of automated oscillometric devices for blood pressure measurement and determination of the ankle-brachial index has been applied with variable success. It will be beneficial to investigate a reliable oscillometric-based procedure that can accurately measure leg pressures for the ankle-brachial index across the entire spectrum of PAD severity.

The purpose of this study is to determine the optimal oscillometric-based technique for estimation of Doppler-derived systolic arm and ankle blood pressures for calculation of the ankle-brachial index in patients with and without PAD.

Subjects with suspected arterial disease in the non-invasive lab will be enrolled. Arm, ankle, and toe pressure measurements will be made in the supine position using Doppler, oscillometric methods, and photoplethysmographic sensor. Arm and ankle pressures from a subset of subjects will be obtained in both seated and supine positions. The ankle-brachial index and toe-brachial index will be calculated.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Anticipated)

70

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Ohio
      • Cleveland, Ohio, United States, 44195
        • Cleveland Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients presenting to Cleveland Clinic's non-invasive vascular lab

Description

Inclusion Criteria:

  • Patient at least 50 years of age
  • Ambulatory outpatient
  • Referred to non-invasive Vascular Laboratory for evaluation of suspected arterial disease.

Exclusion Criteria:

  • Unable to give informed consent
  • Unable to lie supine for at least 15 minutes

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
SUSPECTED ARTERIAL DISEASE
Procedure: BLOOD PRESSURE MEASURMENT
Blood pressures using Doppler and oscillometric methods will be obtained at each limb and on one toe from each foot.
Procedure: BLOOD PRESSURE MEASUREMENT
Blood pressure measurements will be taken at each limb (arm and ankle) with Doppler and oscillometric based methods.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Summit Doppler Systems, Inc.

Collaborators

The Cleveland Clinic

Investigators

  • Principal Investigator: Heather L Gornik, MD, The Cleveland Clinic

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2009

Primary Completion (Actual)

October 1, 2009

Study Completion (Actual)

October 1, 2009

Study Registration Dates

First Submitted

January 7, 2009

First Submitted That Met QC Criteria

January 8, 2009

First Posted (Estimate)

January 9, 2009

Study Record Updates

Last Update Posted (Estimate)

November 13, 2009

Last Update Submitted That Met QC Criteria

November 10, 2009

Last Verified

November 1, 2009

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CCF IRB 08-823

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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