AngioDefender Versus Brachial Artery Ultrasound Imaging

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

171 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-08-31

Study Completion Date

2017-02-15

Brief Summary

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The objective of this study is to demonstrate that the investigational device, AngioDefender, is comparable to the established procedure referred to as 'brachial artery ultrasound imaging' in their abilities to quantify flow-mediated vasodilation of the brachial artery.

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Detailed Description

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Conditions

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Cardiovascular Diseases

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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AngioDefender

The AngioDefender device uses a novel, proprietary software algorithm to analyze pulse wave amplitude data collected before and after BA occlusion by a standard upper arm sphygmomanometric blood pressure (BP) cuff. The procedure is non-invasive and employs neither ultrasound nor Doppler flow analysis.

Group Type EXPERIMENTAL

AngioDefender

Intervention Type DEVICE

Brachial Artery Ultrasound Imaging

A non-invasive procedure for detecting endothelial dysfunction by measuring the flow-mediated dilation of the brachial artery (BA) using high resolution continuous ECG-gated B-mode (2D) ultrasound imaging during reactive hyperemia, a state of transient increase in tissue blood flow that occurs following a brief period of ischemia, e.g., BA occlusion. BA diameter is measured at end-diastole, coincident with the R wave of a simultaneously recorded ECG.

Group Type ACTIVE_COMPARATOR

Ultrasound

Intervention Type DEVICE

Interventions

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AngioDefender

Intervention Type DEVICE

Ultrasound

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* ECOG 0-2

Exclusion Criteria

1. Body mass index (BMI) \>50 kg/m2
2. Mid-upper arm circumference of arm selected for FMD testing \<17 cm or \>40 cm
3. Sinus arrhythmia (RR intervals vary by \>50%), atrial fibrillation, atrial flutter, multifocal atrial tachycardia, frequent (\>1 per 10-sec strip) premature atrial or ventricular contractions (isolated, non-isolated, or alternating), documented by 12-lead ECG with rhythm strip at the time of subject screening.
4. Clinical signs and/or symptoms of active viral or bacterial infections
5. Resting tremor or inability to remain still for the duration of AD and BAUI testing
6. Systolic blood pressure (SBP) at rest of \>170 mmHg or diastolic blood pressure (DBP) at rest of ≥110 mmHg.
7. Previous intolerable adverse reaction(s) to vascular testing using an upper extremity occlusive pneumatic cuff

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes