Surgical site infection in non-traumatic abdominal surgery [Infección del sitio operatorio en cirugía abdominal no traumática]
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Background: Risk factors of surgical site infection (SSI) have been widely studied, such as abdominal surgery, surgical time > 2 h, contaminated or dirty surgery, three or more diagnoses at discharge, and ASA classification > II. Methods: A prospective risk factor study was carried out for SSI in patients who underwent nontraumatic abdominal surgery, comparing an institutional (Secretary of Health) and a private third-level hospital during the period from October 2001 to May 2002. Results: We studied 527 patients with 21 cases (3.98 %25) of SSI and four deaths due to this cause, 0.75%25 of the total population and 19 %25 of patients with SSI. The mean age was 47.5 ± 19.1 years, and there were 195 (37 %25) males and 332 (63 %25) females. The incidence of SSI in the private hospital was 2.1%25 and in the institutional hospital 5 %25, without statistical significance (p > 0.09). Within the infected group we found 14 superficial infections, 5 deep infections, and 2 infections in the organ or surgical field. Variables included in the models of logistic regression were smoke, blood transfusion, trichotomy, and wound type. Conclusions: Observed infection incidence was within the expected range. In our study there were no differences between facilities, and SSI incidence is similar to what has previously been reported.
