One-year Prognostic Impact of Microcirculation Assessed by NH IMR Angio in Patients Hospitalized for Acute Myocarditis

Starting soon

Conditions studied: Myocarditis Acute

In brief

The goal of this observational study is to evaluate the association between post-coronary angiography IMR and medium-term clinical prognosis in patients with acute myocarditis. The main question it aims to answer is: Is there a correlation between impaired microcirculation and the occurrence of serious clinical events in this population of patients?

Key facts

Study ID

NCT07676201

Run by

University Hospital, Grenoble

People needed

106

Starts

2026-07-15

Expected to finish

2026-10-15

Last updated by the study team

2026-06-30

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Male or female patients over the age of 18.
• Patients hospitalized between June 2015 and July 2025.
• Patients who presented with chest pain and at least 1 diagnostic criterion; or, in the absence of chest pain, at least 2 of the following diagnostic criteria:
• Electrocardiographic abnormalities (ST-segment elevation or depression, T-wave inversions, conduction disturbances such as type 3 atrioventricular block),
• Elevated troponin levels,
• Abnormal kinematics on echocardiography.
• Associated with MRI findings of ≥2 tissue abnormalities (edema, hyperemia, myocardial fibrosis).
• Coronary angiography performed during the initial hospitalization
• Patient enrolled in or eligible for a social security program.
• Patient who has expressed consent to participate.

You may not qualify if…

• Absence of coronary artery disease confirmed by coronary angiography
• Myocarditis secondary to immunotherapy
• Presence of documented coronary artery disease (coronary angiography or cardiac CT)
• Presence of cardiomyopathy (hypertrophic cardiomyopathy, dilated cardiomyopathy)
• Infiltrative heart disease (sarcoidosis or cardiac amyloidosis)
• Severe valvular heart disease
• Takotsubo syndrome
• Constrictive or chronic pericarditis
• Loeffler's endocarditis
• Left ventricular noncompaction
• Cardiac tumor
• Pulmonary embolism
• Coronary spasm
• Patients covered by Articles L1121-5 through L1121-8 of the Public Health Code (pregnant women, women in labor, and breastfeeding women; persons deprived of their liberty by judicial or administrative decision; adults under guardianship)

Full record on ClinicalTrials.gov

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