[The effect of the duration of the surgical procedure on the appearance of surgical wound infection].

In order to search the influence of longitudiness of surgical intervention in the appearance of the surgical wound, there were analysed 90 operations. There were 32 operations of the "clean" group out of which 19 took longer than one hour and with the infection of 10,5% and 13 less than one hour, without infection. In the "potentially contaminated" wound there were 22 operations. Out of 22 operations, 12 took longer than one hour with the frequency of infections 50% and 10 operations took less than one hour with frequency of infections of 10%. In the "contaminated" group there were 36 operations out of which 25 took longer than one hour with the infection frequency of 72% and 11 operations that took no longer than one hour with the infection frequency of 27,7%. We come to conclusion that the frequency of wound infection grow in all groups of patients if the operations takes longer than one hour, and even more if the surgical intervention is done upon potentially contaminated or contaminated wound.