Mri characterIzation of Troponin Elevation After Cardiac Surgery
关键词
抽象
日期
最后验证: | 06/30/2020 |
首次提交: | 07/23/2020 |
提交的预估入学人数: | 07/23/2020 |
首次发布: | 07/28/2020 |
上次提交的更新: | 07/23/2020 |
最近更新发布: | 07/28/2020 |
实际学习开始日期: | 08/31/2020 |
预计主要完成日期: | 02/28/2022 |
预计完成日期: | 02/28/2022 |
状况或疾病
干预/治疗
Procedure: patients under aortic surgery with CPB
Biological: patients under aortic surgery with CPB
相
手臂组
臂 | 干预/治疗 |
---|---|
Experimental: patients under aortic surgery with CPB Patients under aortic surgery with CPB will have MRI and postoperative dosage of released troponin | Procedure: patients under aortic surgery with CPB 1 MRI 5 days after surgery (-1; +4 days), with intravenous administration of gadolinium |
资格标准
有资格学习的年龄 | 18 Years 至 18 Years |
有资格学习的性别 | All |
接受健康志愿者 | 是 |
标准 | Inclusion Criteria: - Age ≥ 18 years old - Aortic valve surgery with CEC: aortic valve replacement, Bentall, Tirone-David, Wheat with foreseeable clamping time of at least 40 minutes. - Informed consent signed Exclusion Criteria: - Emergency surgery - Other unconventional heart surgery - Aorto-coronary bypass associated with surgery - History of myocardial infarction or severe coronary artery disease, non-valvular hypertrophic cardiomyopathy (MHC) (primary MHC type, Amyloidosis) and myocarditis - Preoperative alteration of systolic function of the left ventricle (LVEF <40%) - Presence of a contraindication to cardiac MRI (claustrophobia, pacemaker or cardiac defibrillator, metallic body, hypersensitivity to gadolinium) - Patients with a glomerular filtration rate (GFR) <30 ml / min - Patients with permanent atrial fibrillation (ACFA) cardiac arrhythmia - Patients treated with anthracyclines - Pregnant and / or lactating woman - Patient under legal protection - Patient not benefiting from a social security system - Patient participating in another clinical study that may interfere with the results of this study. |
结果
主要结果指标
1. correlation between cardiac MRI and the AUC of postoperative plasma released hsTnI. [5 days]
次要成果指标
1. Relationship between peak serum hsTnI and mass in grams of necrosis on MRI. [5 days]
2. AUC / serum peak hsTnI relationship and relative size of the necrosis on MRI [5 days]
3. Relationship of hsTnI levels at 24 hours after aortic unclamping and the mass in grams of necrosis on MRI. [5 days]
4. AUC / peak serum hsTnI relationship and intensity of edema [5 days]
5. AUC / hsTnI serum peak relationship and the presence of microvascular obstruction lesions on MRI on postoperative D5 [5 days]
6. Relation of functional and anatomical parameters evaluated by cardiac MRI on postoperative D5. [5 days]
7. Correlations between clamping time and CEC and the size of the reperfusion lesions visible on MRI on D5 postoperative [5 days]
8. Exploratory evaluation of the kinetic profile of AUC with the type of lesion found on cardiac MRI (early peak, versus late peak). [5 days]
9. Relation of functional and anatomical parameters of the right ventricle in 4 cavities and small axis (tele-diastolic volume, FEVD) evaluated by cardiac MRI on D5 postoperative. [5 days]