ST-Segment Resolution as a Marker for Myocardial Scar in ST-Segment Elevation Myocardial Infarction

NCT ID: NCT04586582

Last Updated: 2020-10-14

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

Total Enrollment

42 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-07-01

Study Completion Date

2019-04-30

Brief Summary

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Clinical studies found that poor ST-segment resolution (STR) in electrocardiogram (ECG) occurred in major adverse cardiovascular events (MACE), arrhythmia and heart failure was significantly higher . In clinical work, in patients have poor ST-segment decline, the investigators found by CMR-LGE the corresponding myocardium become thinner and other signs of myocardial scar.

The investigators aimed to establish whether poor ST-segment resolution in ECG, as well as CMR-LGE, could detect the presence of myocardial scar in early STEMI patients. In order to provide convenient, cheap and widely used test method for patients who cannot tolerate CMR-LGE.

42 STEMI patients with single-branch coronary artery stenosis or occlusion were enrolled. ST-segment elevations were measured on the baseline and 24 hours after PCI. The study population was divided into two groups by late gadolinium enhanced cardiac magnetic resonance (LGE- CMR), with transmural myocardial scar (\>75%) or non-transmural myocardial scar (\<75%).

Detailed Description

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Conditions

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Cardiovascular Diseases

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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ST-segment resolution <40.15%

ST-segment resolution \<40.15%

ST-segment resolution <40.15%

Intervention Type DIAGNOSTIC_TEST

Forty-two STEMI patients with single-branch coronary artery stenosis or occlusion were enrolled. ST-segment elevations were measured at emergency admission and at 24 h after PCI. Late gadolinium-enhanced cardiac magnetic resonance imaging (CMR-LGE) was performed 7 days after PCI to evaluate myocardial scars.

ST-segment resolution >40.15%

ST-segment resolution \>40.15%

ST-segment resolution <40.15%

Intervention Type DIAGNOSTIC_TEST

Forty-two STEMI patients with single-branch coronary artery stenosis or occlusion were enrolled. ST-segment elevations were measured at emergency admission and at 24 h after PCI. Late gadolinium-enhanced cardiac magnetic resonance imaging (CMR-LGE) was performed 7 days after PCI to evaluate myocardial scars.

Interventions

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ST-segment resolution <40.15%

Forty-two STEMI patients with single-branch coronary artery stenosis or occlusion were enrolled. ST-segment elevations were measured at emergency admission and at 24 h after PCI. Late gadolinium-enhanced cardiac magnetic resonance imaging (CMR-LGE) was performed 7 days after PCI to evaluate myocardial scars.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. Single-branch coronary artery stenosis or occlusion
2. Restoration of coronary perfusion to TIMI flow grade 3 after PCI

Exclusion Criteria

1. A prior history of the acute coronary syndrome
2. Coronary revascularization
3. Severe chronic kidney disease
4. Intracardiac pacing leads or other implants precluding CMR-LGE
5. Hemodynamic instability
6. Known claustrophobia
Minimum Eligible Age

30 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Chongqing Medical University

OTHER

Sponsor Role lead

Responsible Party

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Dongying Zhang

Clinical Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Dongying Zhang, phD.

Role: STUDY_DIRECTOR

First Affiliated Hospital of Chongqing Medical University

Locations

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The first affiliated hospital of Chongqing medical university

Chongqing, Chongqing Municipality, China

Site Status

Countries

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China

Other Identifiers

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20180701

Identifier Type: -

Identifier Source: org_study_id

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