Cardiac Dysfunction

This multicenter, prospective cohort study evaluates early cardiac dysfunction in adult survivors of childhood cancer. The hypothesis of this study is that cardiac dysfunction can be detected earlier when using speckle tracking echocardiography as novel echocardiographic technique compared to conventional echocardiography.

A randomized controlled trial was conducted to evaluate the efficacy and safety of Yangxinshi tablets in improving the condition of patients with coronary heart disease complicated by cardiac dysfunction.

Allogeneic hematopoietic stem cell transplantation (HSCT) represents a major therapeutic strategy for malignant hematologic diseases, with the number of procedures steadily increasing in France each year. Conditioning and maintenance regimens carry a risk of both short- and long-term cardiotoxicity, leading to serious cardiovascular events including acute coronary syndrome (ACS), cardiac dysfunction, arrhythmias, pulmonary hypertension, and pericardial effusion. The pathophysiology of cardiotoxicity in HSCT patients remains poorly understood. It is therefore crucial to investigate underlying mechanisms and identify predictive factors of cardiotoxicity in order to provide appropriate cardiological follow-up and management. Current European Society of Cardiology guidelines recommend routine monitoring of HSCT patients with echocardiography and cardiac biomarkers (NT-proBNP, troponin), although these recommendations are based on small-scale studies. The cardiodepressor factor DPP3 has shown promising results in cardio-oncology, with a causal role in anthracycline-induced cardiac dysfunction. Its role in HSCT-related cardiotoxicity requires further evaluation. This multicenter study of HSCT recipients will be a valuable resource, enabling a better understanding of the pathophysiology of cardiotoxicity and prognosis. It will highlight imaging (echocardiography, calcium score, supra-aortic Doppler), electrocardiographic, and biological markers (including DPP3) associated with prognosis.

Acute kidney injury (AKI) is a frequent disease in conventional hospital departments and in intensive care units. It's associated with a high risk to develop chronic kidney disease (CKD), even after a single small AKI episode. It's also associated with an important morbi-mortality, particularly cardiovascular (CV). Some studies have already showed a link between AKI and CV risk but pathologic mechanisms implicated are still unknown. In AKI and CKD, numerous substances, called uremic toxins (UT) are accumulating in blood. In CKD, those toxins, and particularly Indoxyl sulfate (IS), are known to have cardiac and vascular deleterious consequences. However, in AKI, whether acute accumulation of UT may trigger CV complications is unknown. The purpose of this study is that during AKI, a high UT concentration, in particular IS, would be associated with early vascular and cardiac dysfunctions that can be characterized by the persistence of an accelerated pulse wave velocity (PWV). The main objective is to evaluate the correlation between UT concentrations (especially IS) and arterial stiffness (PWV measurement) at three months of an AKI episode in conventional hospital departments and in the intensive care unit of nephrology.