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Table 1 Most frequently encountered pathogens, according to the surgical procedure [8]

From: Early recognition of methicillin-resistant Staphylococcus aureus surgical site infections using risk and protective factors identified by a group of Italian surgeons through Delphi method

Type of surgery

Likely pathogens

Placement of grafts, prostheses, or implants

S. aureus, coagulase-negative staphylococci

Cardiac

S. aureus, coagulase-negative staphylococci

Neurosurgery

S. aureus, coagulase-negative staphylococci

Breast

S. aureus, coagulase-negative staphylococci

Ophthalmic (limited data; anterior segment resection, vitrectomy, and scleral buckling)

S. aureus, coagulase-negative staphylococci, streptococci, Gram-negative bacilli

Orthopedic (total joint replacement, closed fractures/use of nails, plates, other internal fixation device, functional repair without implant/device trauma)

S. aureus, coagulase-negative staphylococci, Gram-negative bacilli

Non-cardiac thoracic (lobectomy, pneumonectomy, wedge resection, other non-cardiac mediastinal procedures), closed tube thoracotomy

S. aureus, coagulase-negative staphylococci, S. pneumoniae, Gram-negative bacilli

Vascular

S. aureus, coagulase-negative staphylococci

Appendectomy

Gram-negative bacilli, anaerobes

Biliary tract

Gram-negative bacilli, anaerobes

Colorectal

Gram-negative bacilli, anaerobes

Gastroduodenal

Gram-negative bacilli, streptococci, oropharyngeal anaerobes (e.g., peptostreptococci)

Head and neck (mainly procedures with incision through oropharyngeal mucosa)

S. aureus, streptococci, oropharyngeal anaerobes (e.g., peptostreptococci)

Obstetric and gynecological

Gram-negative bacilli, enterococci, group B streptococci, anaerobes

Urological

Gram-negative bacilli

  1. S. aureus Staphylococcus aureus