the long-term mortality rate depends on the patient 's age , the severity of the stroke , as well as on the presence and severity of attendant diseases ( risk factors ) , the most important of which were atherosclerosis and arterial hypertension , heart diseases of atherosclerotic origin ( especially those involving arrhythmia , diabetes mellitus and lung diseases .
C0018799
heart diseases of
C0003811
arrhythmia