Over an 11-year period, autopsies were performed on 957 of 1038 nontra
umatic deaths in the Emergency Department of the Central Hospital in F
errara, Italy. Of these 957 cases, 732 (76.5%) met criteria for sudden
death. In 100 (14%) of these cases, the death could be attributed to
pulmonary embolism (55 cases), stroke (17), or rupture of aortic aneur
ysm (28). Acute myocardial infarction accounted for 403 (55%) of all s
udden deaths. Severe coronary artery disease was found in 340 (84%) of
these 403 deaths, with plaque fissuring or thrombi in 189 or 151 case
s, respectively. Among the 229 sudden deaths for whom no immediate cau
se could be determined (31% of the total population), all had evidence
of heart disease: 147 individuals had severe coronary artery disease,
with plaque fissuring or thrombi found in 72 or 43, respectively. The
remaining cases with no immediate cause of death had evidence of a ca
rdiomyopathy (61) or valvular disease (21). We conclude that acute myo
cardial infarction accounts for the majority of cases of nontraumatic
sudden death in our Emergency Department. Altogether, 84% of these pat
ients had severe coronary artery disease. In approximately one-third o
f cases for whom no immediate cause of sudden death could be determine
d, all had evidence of heart disease, and about two-thirds had severe
coronary artery disease.