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

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ClinicalTrials.gov Identifier: NCT00539045
Recruitment Status : Completed
First Posted : October 3, 2007
Last Update Posted : February 14, 2018
Sponsor:
Collaborator:
Lantheus Medical Imaging
Information provided by (Responsible Party):
Jonathan W. Weinsaft, Weill Medical College of Cornell University

Brief Summary:
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.

Condition or disease
Thrombus Myocardial Infarction

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
Actual Enrollment : 250 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Diagnostic Utility of Contrast Echocardiography for Detection of Left Ventricular Thrombi Post ST Elevation Myocardial Infarction
Study Start Date : March 2007
Primary Completion Date : January 2015
Study Completion Date : January 2015

Resource links provided by the National Library of Medicine

U.S. FDA Resources

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.




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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Cross-sectional population of subjects enrolled following ST-elevation myocardial infarction.
Criteria

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00539045


Locations
United States, New York
Weill Medical College of Cornell University
New York, New York, United States, 10021
Sponsors and Collaborators
Weill Medical College of Cornell University
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 automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Jonathan W. Weinsaft, Associate Professor, Weill Medical College of Cornell University
ClinicalTrials.gov Identifier: NCT00539045     History of Changes
Other Study ID Numbers: 0610008782
First Posted: October 3, 2007    Key Record Dates
Last Update Posted: February 14, 2018
Last Verified: February 2018

Keywords provided by Jonathan W. Weinsaft, Weill Medical College of Cornell University:
myocardial infarction, thrombus

Additional relevant MeSH terms:
Infarction
Myocardial Infarction
ST Elevation Myocardial Infarction
Thrombosis
Ischemia
Pathologic Processes
Necrosis
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases
Embolism and Thrombosis