[The biorhythmological types of work capacity and the late prognosis for patients who have had a myocardial infarct].

The authors analyze postmyocardial infarction 10-year survival and frequency of repeated cardiac accidents (fatal and nonfatal MI and sudden cardiac death). Biorhythmological types of mental and muscular performance were involved in long-term MI prognosis. Of 412 males who had their first myocardial infarction at the age under 59, 10-year prognosis was poor for those with early pattern of efficient work vs good prognosis in those who work most efficiently in the evening. The differences in the long-term prognosis of acute myocardial infarction related to performance biorhythm were observed both for subjects performing muscular and mental work.