<prompt> Sudden cardiac death may occur in all of the following exceptDilated cardiomyopathyHyperophic cardiomyopathyEisenmengers syndromeVentricular septal defect  <response>: Sudden cardiac death SCD is defined as natural death due to cardiac causes in a person who may or may not have previously recognized hea disease but in whom the time and mode of death are unexpected. Ref Davidson edition23rd pg 436 