[Prevention of suppurative complications considering the risk of their occurrence].

The efficacy of a mark-grading system for the prognosis of the occurrence of suppuration in acquired and congenital heart diseases is analyzed in this work. The mathematical relationship between the sum of marks of the risk and the probability of the occurrence of purulent complication is proved. On the grounds of the found phenomenon a group of patients with high risk of purulent complications, needing some supplementary prophylactic procedures, has been selected. A complex of medicamental and organizational measures has been devised, which ensured more than 1.5-fold decrease of the incidence of surgical infection in high risk patients following operations with extracorporeal circulation.