Using Cardiac MRI to Characterise the Dynamic Changes Which Occur in the Acutely Reperfused STEMI Patient

May 31, 2016 updated by: National Heart Centre Singapore
There is an optimal day on which to perform the CMR scan which allows one to capture the information required to assess the dynamic changes in the reperfused STEMI patient. The main objective is to characterise the dynamic changes in LV function, MI size, myocardial edema, MVO, IMH, interstitial volume in the remote myocardium over the first 10 days of an acute reperfused STEMI in order to identify the optimal day for performing the CMR scan.

Study Overview

Status

Unknown

Conditions

Detailed Description

This will be a prospective observational study with serial CMR imaging only.

CMR scan Each patient will receive one CMR scan performed on Day 1, Day 3, Day 5, Day 10 following the PPCI procedure on a 3T Philips scanner (see study flow below). All CMR scans will be analysed at a central CMR corelab.

For Day 1, 3, 5, 7 and 10 CMRs, parameters will be collected as follows:

  • Left ventricle (LV) ejection fraction and indexed LV end systolic and diastolic volumes and mass using short-axis SSFP cine imaging and myocardial tagging sequences).
  • The AAR by T1 and T2 mapping18 as a percentage of the LV over time.
  • Signal intensity of T1 and T2 mapping in the MI zone, MI core and remote myocardium over time.
  • The incidence of intramyocardial haemorrhage (IMH)(hypo-enhancement on T2* mapping sequence)26.
  • The volume of microvascular obstruction (MVO) defined as signal intensity 2 standard deviated below the mean signal intensity of the remote myocardium on the T2* maps.

Additional sequence for Day 3 and 7 CMR scans:

• All the above plus MI size (measured in mass of LGE and expressed as a percentage of the LV mass).

Study Type

Observational

Enrollment (Anticipated)

20

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

  • Singapore
      • Singapore, Singapore, 169609
        • Recruiting
        • National Heart Centre Singapore

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

21 years to 99 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients presenting with an acute STEMI

Description

Inclusion Criteria:

  1. Confirmed STEMI as per PPCI procedure reports/ clinical notes
  2. Proximal to mid coronary artery occlusion.
  3. Ability to provide informed consent

Exclusion Criteria:

  1. Previous myocardial infarction or coronary artery bypass graft surgery
  2. Contraindication for CMR (e.g. ferromagnetic implants, claustrophobia, estimated glomerular filtration rate <30mL/min)

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
All cause mortality
Time Frame: One year
One year

Collaborators and Investigators

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

Sponsor

National Heart Centre Singapore

Investigators

  • Principal Investigator: National Heart Centre Singapore, National Heart Centre Singapore

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

December 1, 2015

Primary Completion (Anticipated)

January 1, 2017

Study Completion (Anticipated)

January 1, 2017

Study Registration Dates

First Submitted

May 31, 2016

First Submitted That Met QC Criteria

May 31, 2016

First Posted (Estimate)

June 6, 2016

Study Record Updates

Last Update Posted (Estimate)

June 6, 2016

Last Update Submitted That Met QC Criteria

May 31, 2016

Last Verified

May 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2015/3033

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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.

Clinical Trials on STEMI

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Qatar

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe