Protective Effect of Coronary Collaterals on Infarct Size in Patients With Acute Myocardial Infarction

NCT ID: NCT00412672

Last Updated: 2015-06-16

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

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2010-07-31

Brief Summary

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The hypothesis of the current proposal is that collateral flow is an important determinant of myocardial protection during an ischemic event. Increased collateral flow for any given area at risk will decrease the myocardial damage caused by the occlusion of the infarct related epicardial artery.

It is further hypothesized that myocardial salvage provided by collateral flow will decrease infarct size and this in turn will decrease LV dilatation post-myocardial infarction.

Detailed Description

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The hypothesis of the current proposal is that collateral flow is an important determinant of myocardial protection during an ischemic event. Increased collateral flow for any given area at risk will decrease the myocardial damage caused by the occlusion of the infarct related epicardial artery.

It is further hypothesized that myocardial salvage provided by collateral flow will decrease infarct size and this in turn will decrease LV dilatation post-myocardial infarction.

The two primary endpoints are infarct size as assessed by increase of biochemical cardiac markers and coronary collateral perfusion index (CPI) as obtained by transthoracic MCE.

Extent of LV remodelling, i.e., LV dilatation as assessed by serial assessment of LV dimension by LV angiogram and/or echocardiography, respectively.

Conditions

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Myocardial Infarction

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Patients with acute myocardial infarction with electrocardiographic criterion and/or typical history of angina pectoris and planned revascularisation according to the acute myocardial infarction disease management guidelines of the University Hospital Bern. Including both, patients undergoing primary PCI and patients referred for rescue PCI after failed thrombolytic therapy
* Patients \> 18 years old of either sex
* Patients who have given informed consent to the study

Exclusion Criteria

* Patients unable to give informed consent e.g. because of mechanical ventilation
* Patients with cardiogenic shock
* Patients with myocardial infarction secondary to occlusion of a recently revascularized vessel (subacute stent thrombosis)
* Patients with severe arrhythmias
* Patients whose door-to-balloon time exceeds 120 minutes
* Pregnancy
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Swiss National Science Foundation

OTHER

Sponsor Role collaborator

Insel Gruppe AG, University Hospital Bern

OTHER

Sponsor Role lead

Responsible Party

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Department of Cardiology, University Hospital, CH-3010 Bern, Switzerland

Principal Investigators

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Christian Seiler, Prof.

Role: PRINCIPAL_INVESTIGATOR

University Hospital Bern, Switzerland

Other Identifiers

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37/01

Identifier Type: -

Identifier Source: org_study_id

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