Table 1.

Echocardiographic findings of the four affected individuals. EF: ejection fraction; FS: fractional shortening; LV: left ventricle; LVDd: left ventricular diastolic diameter; MR: mitral regurgitation; RV: right ventricle; TR: tricuspid regurgitation; yrs: years

Individual	Age (yrs)	Echocardiogram	EF	LVDd	FS
IV:2	26	severely dilated LV. severely reduced LV systolic function. moderate MR.	12.5 %	63	7.8 %
IV:3	22	moderately dilated LV. severely reduced LV systolic function. trace MR.	25 %	57	15.8 %
IV:5	20	moderately dilated LV. severely reduced LV systolic function. moderate MR.	25 %	59	16.9 %
IV:6	14	severely dilated LV and RV. severely reduced LV and RV systolic function. severe MR and TR	15 %	71	5.6 %