Cardiovascular Prognosis

Postoperative atrial fibrillation (POAF) occurs in approximately 20% of patients following thoracic surgery. Early diagnosis is essential to prevent complications such as heart failure, stroke, myocardial infarction, and increased mortality. Smartwatches equipped with single-lead ECG capabilities and algorithms to detect asymptomatic atrial fibrillation (AF) offer a potential solution. This study aims to evaluate the effectiveness of smartwatches in detecting POAF compared to standard care.

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.

The Mediterranean Group of Cardio-Oncology (GMEDICO) brings together French cardiologists and oncologists who have developed a protocol for the monitoring and cardio-oncological management of patients treated for cancer. This unique organization makes it possible to envisage the creation of a large cohort from which the incidence and predictive factors of cardiovascular toxicity can be determined. Primary objective: to determine the cardiovascular prognosis of patients treated for cancer and followed up in cardio-oncology. Secondary objectives * To determine the clinical, biological and imaging factors associated with cardiovascular events under cancer treatment, in order to define a risk score including clinical, biological (biomarker) and imaging data. * To create a biological source for testing other biomarkers and conducting genome-wide association studies and genetic factors associated with cardiovascular events under cancer treatment.