One-year Prognostic Impact of Microcirculation Assessed by NH IMR Angio in Patients Hospitalized for Acute Myocarditis (MICROMYOC)
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?
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- 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.
Exclusion Criteria:
- 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)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
MACE
Tidsramme: From the time of the coronary angiography up to one year
|
The primary endpoint is the 1-year incidence rate of MACE.
MACE is defined by a composite endpoint comprising: 1) all-cause mortality, 2) cardiac decompensation requiring readmission, 3) heart transplantation, 4) documented sustained ventricular arrhythmia lasting >30 seconds, and 5) recurrence of myocarditis.
|
From the time of the coronary angiography up to one year
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Individual components of the 12-month MACE: cardiovascular death, transplantation, hospitalization for heart failure, and persistent heart failure (reported separately)
Tidsramme: From the time of the coronary angiography up to one year
|
From the time of the coronary angiography up to one year
|
|
Correlation between IMR angiographic NH (continuous variable) and: a) MRI imaging criteria (LVEF, fibrosis, septal involvement, edema); b) biological markers (maximum troponin, CRP)
Tidsramme: From the time of the coronary angiography up to one year
|
From the time of the coronary angiography up to one year
|
|
Predictive value of MRI angiography: diagnostic performance in predicting the primary endpoint (ROC, optimal cut-off values, sensitivity/specificity)
Tidsramme: From the time of the coronary angiography up to one year
|
From the time of the coronary angiography up to one year
|
|
Assessment of inter- and intra-observer reproducibility of the MR angiography NH calculation (if a subsample is reanalyzed)
Tidsramme: From the time of the coronary angiography up to one year
|
From the time of the coronary angiography up to one year
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 38RC26.0180
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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