One-year Prognostic Impact of Microcirculation Assessed by NH IMR Angio in Patients Hospitalized for Acute Myocarditis (MICROMYOC)
2026年6月23日 更新者：University Hospital, Grenoble
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?
研究概览
研究类型
观察性的
注册 (估计的)
106
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
- 成人
- 年长者
接受健康志愿者
不
取样方法
非概率样本
研究人群
patients hospitalized in the cardiology department at CHUGA between 2015 and 2025 who had a diagnosis of myocarditis confirmed by cardiac MRI.
描述
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)
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
MACE
大体时间：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
|
次要结果测量
结果测量 |
大体时间 |
|---|---|
|
Individual components of the 12-month MACE: cardiovascular death, transplantation, hospitalization for heart failure, and persistent heart failure (reported separately)
大体时间：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)
大体时间：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)
大体时间：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)
大体时间：From the time of the coronary angiography up to one year
|
From the time of the coronary angiography up to one year
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (估计的)
2026年7月15日
初级完成 (估计的)
2026年10月15日
研究完成 (估计的)
2026年10月15日
研究注册日期
首次提交
2026年6月23日
首先提交符合 QC 标准的
2026年6月23日
首次发布 (实际的)
2026年6月30日
研究记录更新
最后更新发布 (实际的)
2026年6月30日
上次提交的符合 QC 标准的更新
2026年6月23日
最后验证
2026年6月1日
更多信息
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