Analysis of Surface EKG Signals to Identify Myocardial Dysfunction in Patients at Risk for Coronary Artery Disease

NCT ID: NCT02560168

Last Updated: 2017-10-23

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

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-10-31

Study Completion Date

2016-06-30

Brief Summary

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1. The MyoVista device is capable of detecting surface electrocardiogram signals and sensitive in detecting coronary artery disease compared to traditional computed tomography angiography (CTA)
2. Electrophysiological signals at the cellular level of myocardium are related to specific patterns on the MyoVista device
3. Changes in MyoVista device output and can indicative of future CAD outcomes and need for revascularization

Detailed Description

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Background Myocardial ischemia is caused by myocardial oxygen supply and demand mismatch. Despite that coronary artery disease (CAD) is the major cause of myocardial ischemia, the symptoms may occur even in the absence of significant CAD. One of the mechanisms suggested for myocardial ischemia in these patients is microvascular ischemia (i.e. mismatch in microscopic vessels), affecting the myocardium (i.e. heart muscle) at the cellular level.

A novel electrocardiographic recording method, the iECG is capable of capturing and amplifying signals from the cellular level that are much lower biologic signals than those processed by a traditional electrocardiogram (ECG). These recordings focus on early detection of myocardial abnormalities by non-linear analysis of electrical activity and physiological phenomenon. This novel assessment might be capable of detecting subclinical myocardial dysfunction in a variety of heart diseases.

Specific Aims

Aim#1: Study the feasibility of detection of CAD using iECG compared to computed tomographic coronary angiography (CTA).

Aim#2: Study the association between patterns of iECG and myocardial dysfunction in patients without CAD compared to echocardiography.

Aim#3: Study the effect of changes in iECG output on future outcomes of CAD and need for revascularization.

Conditions

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Coronary Artery Disease

Keywords

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Coronary artery disease iECG MyoVista Heart Test Labs Wavelet analysis Surface electrocardiogram

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DEVICE_FEASIBILITY

Blinding Strategy

NONE

Study Groups

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Coronary artery disease

Patients scheduled for computed tomographic coronary angiography (CTA)

Group Type EXPERIMENTAL

MyoVista device

Intervention Type DEVICE

MyoVista device is a standard EKG device with additional capabilities in detecting cellular level myocardial electrophysiological signals. The device involves placing leads on the chest, similar to a traditional EKG device

Computed tomographic coronary angiography

Intervention Type DEVICE

Traditional method of detecting coronary artery disease. CTA will be performed using 64-detector row or higher scanners with electrocardiographic gating in accordance with the Society of Cardiovascular Computed Tomography (SCCT) guidelines. Approximately 80 to 100 ml of intravenous contrast, followed by 50 to 80 ml of saline, will be administered at a rate of 5 ml/s via a power injector through an antecubital vein (on forearm near the elbow).

Transthoracic Echocardiography

Intervention Type DEVICE

Interventions

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MyoVista device

MyoVista device is a standard EKG device with additional capabilities in detecting cellular level myocardial electrophysiological signals. The device involves placing leads on the chest, similar to a traditional EKG device

Intervention Type DEVICE

Computed tomographic coronary angiography

Traditional method of detecting coronary artery disease. CTA will be performed using 64-detector row or higher scanners with electrocardiographic gating in accordance with the Society of Cardiovascular Computed Tomography (SCCT) guidelines. Approximately 80 to 100 ml of intravenous contrast, followed by 50 to 80 ml of saline, will be administered at a rate of 5 ml/s via a power injector through an antecubital vein (on forearm near the elbow).

Intervention Type DEVICE

Transthoracic Echocardiography

Intervention Type DEVICE

Other Intervention Names

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iECG CTA Echocardiogram

Eligibility Criteria

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Inclusion Criteria

* Sinus rhythms
* Age\>18 years
* Both genders

Exclusion Criteria

* Acute coronary syndromes(ACS)
* Contraindications to the administration of iodinated contrast
* Pregnancy
* Coronary artery bypass surgery (CABG)
* History of cardiac valvular replacement
* Implanted cardiac pacemaker
* Chest deformities
* Unwilling or unable to provide informed consent for study participation
* Enrolled in another clinical study
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Heart Test Laboratories, Inc.

INDUSTRY

Sponsor Role collaborator

Icahn School of Medicine at Mount Sinai

OTHER

Sponsor Role lead

Responsible Party

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Partho Sengupta

Associate Professor of Medicine and Director of Cardiac Ultrasound Research and Core Lab

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Partho P Sengupta, MD, DM, FACC, FASE

Role: PRINCIPAL_INVESTIGATOR

Icahn School of Medicine at Mount Sinai

Locations

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Icahn School of Medicine at Mount Sinai

New York, New York, United States

Site Status

Countries

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United States

Other Identifiers

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Heart Test Laboratories, Inc.

Identifier Type: OTHER

Identifier Source: secondary_id

GCO 15-0726

Identifier Type: -

Identifier Source: org_study_id