a 7 year follow-up survey revealed that : ( 1 ) three had died of sudden cardiac death , ( 2 ) four had received a diagnosis of cardiomyopathy , ( 3 ) one had developed aortic dilatation/aortic regurgitation since the baseline survey , ( 4 ) they all had a significantly more rapid decline in their physical performance and maximal heart rate levels from the time of the baseline survey to follow-up than did randomly selected normal controls ( group 2 ) , and ( 5 ) thallium study results were normal in both groups ( 27 and 26 patients ) , but technetium ventriculography revealed a subnormal increase in ejection fraction during exercise ( less than 5 % units ) in 14 of 27 group 1 subjects and in 4 of 26 group 2 subjects .
C0011065
died
C0085298
sudden cardiac death