[Evaluation of the benefit of early valve surgery in the treatment of infective endocarditis. Contribution of propensity analyses]. / Evaluation du bénéfice de la chirurgie valvulaire précoce dans le traitement de l'endocardite infectieuse. Apport des analyses de propension.

Early valve surgery for infective endocarditis, that is surgery performed during the course of antibiotic therapy, is widely used. However, this intervention has never been proven effective in any clinical trial. Five recently published observational studies, using propensity analysis, analyzed the relationship between surgery and mortality. But they gave conflicting results, mainly because of their methodological limitations. Thus, to date, there is no reliable estimation of early valvular surgery impact on mortality. In addition, this example allows for discussing the interest of propensity analyses and to emphasizing their limitations.