Diagnostic Utility of Contrast Echocardiography for Detection of LV Thrombi Post ST Elevation Myocardial Infarction

February 13, 2018 updated by: Jonathan W. Weinsaft, Weill Medical College of Cornell University

Diagnostic Utility of Contrast Echocardiography for Detection of Left Ventricular Thrombi Post ST Elevation Myocardial Infarction

This is a cross-sectional study of post myocardial infarction patients which is designed to determine the prevalence of left ventricular thrombi (blood clots) using non-contrast echocardiography and to compare this with the prevalence of left ventricular thrombi using contrast echocardiography. Secondary aims of this study are (1) to identify clinical and imaging correlates of left ventricular thrombi, and (2) to compare quantitative measurements of left ventricular chamber size, function, and myocardial mass using contrast and non-contrast echocardiography.

Study Overview

Status

Completed

Conditions

Detailed Description

People that experience heart attacks ("myocardial infarctions") are at increased risk for stroke, possibly due to formation of blood clots ("left ventricular thrombi"), which may break loose from the heart and travel to other organs. While echocardiography is a test commonly employed for thrombus detection, prior studies have yielded heterogeneous findings regarding prevalence and predictors. Echocardiographic contrast ("perflutren lipid microspheres") are FDA approved imaging agents that have been shown to improve thrombus detection in selected populations. However, the decision to use contrast is often predicated upon results of non-contrast echocardiography, a diagnostic strategy that hasn't been well studied. This study is designed to test whether echocardiographic contrast improves thrombus detection following myocardial infarction. Participants will undergo non-contrast and contrast echocardiography. These will be compared for identification of thrombi and assessment of cardiac size and function. Clinical features and results of other diagnostic tests will also be reviewed in order to study whether these predict thrombus risk. Participants will be contacted at regular intervals by study investigators to determine whether thrombi identified by contrast or non-contrast echocardiography predict risk for stroke or cardiac events. Findings from this study may improve detection of thrombi, thereby improving treatment for patients following myocardial infarction.

Study Type

Observational

Enrollment (Actual)

250

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
    • New York
      • New York, New York, United States, 10021
        • Weill Medical College of Cornell University

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Cross-sectional population of subjects enrolled following ST-elevation myocardial infarction.

Description

Inclusion Criteria:

  • all patients who are admitted to The New York Presbyterian Hospital-Weill Medical College of Cornell University (NYP-WMC) with ST elevation myocardial infarctions

Exclusion Criteria:

  • contraindications to MRI at time of planned imaging (e.g. metallic contra-indication, pacemaker, implantable cardiac defibrillator, cochlear implants, aneurysm clips intolerance of the imaging protocol due to NYHA IV heart failure or CCS class IV angina)
  • known allergy/contra-indications to gadolinium or echo contrast agents (i.e. known intracardiac shunt, severe reactive airway disease)
  • known pregnancy

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
A
The study population will consist of patients who are admitted to The New York Presbyterian Hospital-Weill Medical College of Cornell University (NYP-WMC) with ST elevation myocardial infarctions (STEMI). STEMI will be established based on standard clinical and ECG criteria.

Collaborators and Investigators

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

Sponsor

Weill Medical College of Cornell University

Collaborators

Lantheus Medical Imaging

Investigators

  • Principal Investigator: Jonathan W Weinsaft, MD, Weill Medical College of Cornell University
  • Study Chair: Richard B Devereux, MD, Weill Medical College of Cornell University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

March 1, 2007

Primary Completion (Actual)

January 1, 2015

Study Completion (Actual)

January 1, 2015

Study Registration Dates

First Submitted

October 2, 2007

First Submitted That Met QC Criteria

October 2, 2007

First Posted (Estimate)

October 3, 2007

Study Record Updates

Last Update Posted (Actual)

February 14, 2018

Last Update Submitted That Met QC Criteria

February 13, 2018

Last Verified

February 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0610008782

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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