Table 1

Echocardiographic Features of Affected Family Members From Families 1 and 2

Subject No.Two-Dimensional Echocardiogram
Age (yrs)/GenderVS (mm)PW (mm)LVEDD (mm)LVESD (mm)EF (%)
Family 1
Family 2

LVEDD = left ventricular end-diastolic diameter; LVESD = left ventricular end-systolic diameter; LVWT = left ventricular wall thickness; PW = posterior wall; VS = ventricular septum; other abbreviations as in Table 1.

  • * Age at time of death. Family 1: The measurements shown for subject nos. IV-01 and IV-04 represent the most recent data, whereas those for IV-02 and IV-03 were taken on admission during the final illness. Family 2: Two values are given for subject nos. IV-09 and IV-20, indicating the rapid decline in cardiac function observed in these patients.