Table 1

Definition of SSI

Location of infectionCriteria
Superficial SSI
  • Within 30 days.

  • It affects skin and subcutaneous tissue.

  • The patient meets at least one of the following criteria: purulent drainage, positive culture, at least one of the following signs or symptoms of infection: pain or tenderness, localised swelling, redness or heat, the surgeon deliberately opens the incision unless negative culture.

  • Medical diagnosis of superficial SSI.

Deep SSI
  • Within 30 days.

  • It affects deep soft tissue to the incision.

  • The patient has one of the following: purulent drainage, spontaneous dehiscence deep incision or deliberate opening by the surgeon when the patient has at least one of the following symptoms: local pain, fever, abscess or other evidence of deep infection found in direct examination, reoperation or histopathological or radiological study.

  • Medical diagnosis of deep SSI.

Organ/space
SSI
  • Within 30 days.

  • It affects any other part of the anatomy to open or manipulated during surgery incision.

  • The patient presents at least one of the following: purulent discharge, positive culture, abscess or other evidence of infection involving an organ or space found by direct examination, reoperation or by histopathological or radiological study.

  • Medical diagnosis of organ/space SSI.

  • SSI, surgical site infection.