After identification of qualified subjects, the families of surviving patients will be mailed a package containing a cover letter explaining the study, a consent form, an assent form if applicable, a questionnaire (designed to evaluate longer-term outcome measures including the occurrence of recurrent endocarditis, late surgical intervention or the need for re-operations) and a self addressed stamped envelope to be used to return the consents and the questionnaire. The data will then be entered into a database and analyzed.