Myocardial infarction in young subjects.
The occurrence of myocardial infarction (MI) in subjects younger than 35 years of age is the subject  of this work. The aims were to evaluate the validity of the diagnosis and to study the long-term prognosis for these patients. Through the central data register of all hospital discharges in the Uppsala hospital region (approximately 1.25 mill. inhabitants) 30 patient histories were obtained. They were carefully evaluated and all survivors were invited to an examination at the Department of Cardiology. The follow-up period from the initial hospital stay was up to 11 years. The hospital mortality among 14 subjects with MI and coronary atheromatosis was 29%, increasing to 43% in the follow-up period. Six of the seven investigated survivors in this group were symptom-free and full-time employed. Hyperlipoproteinemia, smoking and heredity for ischemic heart disease seemed to be the most important risk factors among the 14 subjects in this group. Further studies are necessary to evaluate the validity of diagnoses obtained from central data register. In ten patients the initial diagnosis had been incorrect.
D000328:Adult; D000367:Age Factors; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000453:epidemiology*; D011379:Prognosis; D012306:Risk; D013548:Sweden