Stratification of patients after myocardial infarction by a scale of non-invasive examinations--Holter monitoring, early ergometry, examination of late ventricular potentials, heart rate variability, echocardiography, monitoring of haemodynamic parameters by means of electric bioimpedance, clinical state monitoring, evaluation of MI localisation, and the age of the patients enable a sufficiently accurate assessment of residual myocardial ischaemia, and to reveal electrical instability and dysfunction of myocardium. The signs detected in this way enable, after mathematical analysis of the results, to assess the degree of risk in individual patients, and to evaluate accurately the defined groups (men, women) regarding the prognosis. These relatively simple examinations help to identify the patients whose states require coronarographic examination or revascularization intervention, or on the contrary, to select those patients who may return to their occupation without major risk of re-infarction and sudden death. (Tab. 3, Fig. 7, Ref. 52.)