CT Coronary Angiography for Type 2 Myocardial Infarction

Status Recruiting

Clinical Trial Summary

This study is to explore whether a computed tomography (CT) scan of the heart arteries might improve the care of patients that have presented with a suspected Type 2 myocardial infarction (MI). The Investigators hope to demonstrate that these patients may be the ideal group of patients to benefit from cardiac CT scan imaging by; 1. confirming whether they have any disease in their heart arteries 2. demonstrating the severity of the heart artery disease 3. revealing an alternative cause for their presentation 4. avoiding the need for an invasive heart artery angiogram.

Clinical Trial Description

An increasing number of patients present to hospital with a heart attack (myocardial infarction, MI). Heart attacks can be caused by instability and narrowing in heart arteries (Type 1 MI) or strain on the heart (Type 2 MI). Type 2 MIs can be the result of other problems with the heart including inflammation and rhythm problems or other conditions such as infection or low blood count. Both Type 1 and Type 2 MI patients have increased risk of further problems following this presentation. Deciding whether a patient has suffered a Type 1 MI or a Type 2 MI can be very difficult leaving uncertainty for patients and health care staff. Often patients with Type 2 myocardial infarction are either referred for an invasive coronary angiogram (a procedure where dye is injected into the heart arteries directly) or have no further investigations. Invasive angiograms carry a small risk of complications including heart attack, stroke and, rarely, death. Cardiac CT scanning has emerged in the last 20 years as the first test usually performed to investigate patients that present with stable chest pain symptoms to the outpatient department. The role of cardiac CT in patients that present as an emergency with a suspected heart attack is not yet established. To date, there are no substantive data on the role of computed tomography coronary angiography (CTCA) in patients with known or suspected Type 2 MI. A pilot study is proposed to address the information gaps. The specific areas of uncertainty include feasibility of enrolling into an imaging trial during acute medical care, feasibility of randomisation (including compliance and cross-overs), incremental diagnostic value, safety (procedure and post-procedure) and healthcare resource utilisation. The study aims to address the gap in evidence highlighted by the recent European Society of Cardiology Guidelines for the management of acute coronary syndromes, 'evaluating diagnostic strategies to better classify patients according to their type of MI (Type 1 vs Type 2)'. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT06047392
Study type	Interventional
Source	NHS Greater Glasgow and Clyde
Contact	Maureen Travers
Phone	+44141 314 4012
Email	maureen.travers@ggc.scot.nhs.uk
Status	Recruiting
Phase	N/A
Start date	July 24, 2023
Completion date	February 2025

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