Cardiac Function

This prospective observational study aims to investigate the acute cardiovascular effects of ultra-endurance running using comprehensive echocardiographic assessment combined with biological analyses. The main hypothesis is that participation in an ultra-trail race induces acute and transient changes in cardiac function involving both the left and right ventricles, associated with elevations in cardiac biomarkers, with physiological responses varying according to race distance and training level and showing spontaneous recovery within the days following the event. Adult amateur runners participating in ultra-trail races of 80 km or 160 km will undergo standardized clinical evaluation, electrocardiography, and transthoracic echocardiography with myocardial deformation analysis at multiple time points, including baseline, pre-effort, during the race, immediately after exercise, and during early recovery approximately one week after the event. Biological sampling will be performed before the race, immediately after exercise, and at follow-up. The primary objective is to evaluate acute changes in left ventricular systolic function assessed by global longitudinal strain. Secondary objectives include the assessment of biventricular and atrial function, cardiac and non-cardiac biomarkers, recovery patterns after ultra-endurance exercise, and the influence of race distance, training level, performance level, and sex on cardiovascular responses. This exploratory single-center study conducted in France seeks to provide an integrative characterization of cardiac adaptations to extreme endurance exercise and to generate physiological insights that may guide future research and cardiovascular monitoring strategies in endurance athletes.

This study aims to evaluate the effect of the treatment with levothyroxine on cardiac function in children with subclinical hypothyroidism.

Value of speckle tracking echocardiography in early assessment of cardiac function in inflammatory bowel disease .

Evaluation of the effect of the Glycemic control on cardiac function in patients with type 2 diabetes mellitus

The goal of this international multicentre prospective observational cohort study with a nested case-control study is to test some automated fetal heart functional parameters in healthy babies compared to those affected by a congenital heart condition. The main questions it aims to answer are: * If there is a significant difference between the two populations of infants * Whether these parameters could significantly improve the predictive value of actual cardiovascular profile score to predict hydrops Participants will be offered two automated cardiac function assessments between 27+6 and 29+6 gestational weeks and between 34+6 and 36+6 weeks of gestation. Functional parameters will be compared between the two study groups and evaluated over time.

The goal of this clinical trial is to investigate the influence of ultrasound on cardiac functrion. The main question it aims to answer is: How will ultrasound affect the cardiac function? Researchers will： Apply ultrasound to the body and observe cardiac functions. Participants will: Receive ultrasound application and physiological signal monitoring.

Despite work showing the overconsumption of saturated fatty acids (SFA) to be metabolically deleterious, debate continues about whether there is a link between SFA and cardiovascular disease risk. To explore this, we are undertaking a human in vivo parallel-design study, comparing two isocaloric high-fat diets; one enriched with SFA and the other enriched with unsaturated fatty acids (UFAs), to determine the impact of dietary fat composition on postprandial metabolism, liver fat, cardiac fat and cardiac function.