Cardiogoniometry (CGM) for Early Diagnosis of Acute Coronary Syndromes

Status Completed

Clinical Trial Summary

Aims of the study:

Patients in a Chest Pain Unit (CPU) are examined to clarify if the cause of pain is cardiac or not. To identify patients with ST-elevation and other electrocardiogram (ECG) modifications a normal 12-lead ECG is used. The diagnosis non-st-elevation myocardial infarction is determined with the help of the ischemic marker Troponin. However, Troponin levels are elevated earliest 3 to 4 hours after the ischemic event, so that a negative Troponin result at the time of hospital admission is insufficient. Thus the guidelines of the German Society of Cardiology demand a second measurement after 6 to 12 hours. In rare cases false positive Troponin levels have been reported (e.g. in patients with renal insufficiency).

The aim of this study is to determine if in the early phase of diagnostic assessment cardiogoniometry can improve differentiation between patients with cardiac (ischemic) emergency and patients with non-cardiac (non-ischemic) cause of pain. Furthermore it will be evaluated if cardiogoniometry is capable to diagnose patients with non-ST-elevation myocardial infarction (NSTEMI) to the same extent as Troponin. This could avoid time loss until a possibly necessary catheter intervention ("fast track").

To clarify these questions the result of the cardiogoniometry will be compared with the leading diagnosis of the Chest Pain Unit, the diagnosis at hospital discharge as well as with the angiographic findings (as a gold standard). Therefore the performance of cardiac catheterization within 72 hours after start of symptoms is a mandatory inclusion criterion.

Clinical Trial Description

The cardiogoniometry vectorcardiography is a procedure that allows a stress-free and non-invasive diagnosis of myocardial ischemia: five thoracic electrodes as well as the heart flow in orthogonal summation vectors are recorded by a computer-assisted method in three dimensions. ;

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Related Conditions & MeSH terms

Chest Pain

Clinical Trial Details

NCT number	NCT01328795
Study type	Interventional
Source	Stiftung Institut fuer Herzinfarktforschung
Contact
Status	Completed
Phase	N/A
Start date	June 2009
Completion date	May 2010

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Cardiogoniometry (CGM) for Early Diagnosis of Acute Coronary Syndromes (ACS) — CGM@ACS

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms