Congenital Heart Surgery Nomenclature and Database Project: mitral valve disease.

The extant nomenclature for mitral valve disease is reviewed for the purpose of establishing a unified reporting system. The subject was debated and reviewed by members of the STS-Congenital Heart Surgery Database Committee and representatives from the European Association for Cardiothoracic Surgery. All efforts were made to include all relevant nomenclature categories using synonyms where appropriate. Mitral valve disease has been subdivided into stenotic and regurgitant lesions. Lesions have been characterized further by etiology and by anatomic location: supravalvar, valvar, and subvalvar. A comprehensive database set is presented which is based on a hierarchical scheme. Data are entered at various levels of complexity and detail which can be determined by the clinician. These data can lay the foundation for comprehensive risk stratification analyses. A minimum database set is also presented which will allow for data sharing and would lend itself to basic interpretation of trends. Outcome tables relating diagnoses, procedures, and various risk factors are presented.