Timing, mechanism and clinical setting of witnessed deaths in postmyocardial infarction patients
S Goldstein,
L Friedman,
R Hutchinson,
P Canner,
D Romhilt,
R Schlant,
R Sobrino,
J Verter,
and
A Wasserman
The temporal distribution and mechanism of death were studied in a large multicenter secondary prevention trial (Aspirin Myocardial Infarction Study) in which acute witnessed death represented 72% (270 of 376) of the deaths due to arteriosclerotic heart disease. Instantaneous deaths represented 28.9% (78 of 270) of the acute witnessed deaths; 45.2% (122 of 270) occurred in the first hour after the onset of symptoms and were defined as sudden deaths. In the subsequent 23 hours, an additional 113 deaths (41.8%) occurred and were defined as intermediate deaths; 29 late deaths (10.7%) occurred after 24 hours. Cardiac arrhythmia was the mechanism of death in 83% (194 of 235) of deaths within 24 hours. Univariate analysis of baseline clinical and electrocardiographic characteristics indicates that a history of congestive heart failure, cardiomegaly, angina pectoris, multiple myocardial infarctions and therapy with digitalis and nitroglycerin were more common in those who died than in survivors, regardless of the timing of death.
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