Cardiac manifestations of Fabry's disease. Report of a case with pulmonary regurgitation diagnosed on the basis of endomyocardial biopsy findings.

A case of Fabry's disease with pulmonary regurgitation is reported, and the cause of valvular involvement, the electrophysiological mechanism of the short PR interval, and the usefulness of the endomyocardial biopsy method in an attempt to establish the diagnosis in Fabry's disease have been discussed.