ABSTRACT

Single-dose first-or second-generation

Cefuroxime: single dose pre-incision

Thoracic (noncardiac)

Gram-negative bacilli

cephalosporin or vancomycina

Neuro S. aureus, S. epidermidis

Single-dose firstgeneration

Cefazolin: single dose pre-incision

Orthopaedic Less likely to have Gramnegative

cephalosporin or vancomycina

Vascular, including amputation

organisms

Traumatic, without perforation of viscus

Gastrointestinal

• Upper tract (oesophagus, stomach, small bowel)

Enteric Gramnegative bacilli, Gram-positive cocci

High risk (advanced age, morbid obesity, oesophageal obstruction, or reduced gastric motility) defines need for expanded coverage

Low risk: cefazolin High risk: cefuroxime, cefoxitin, Cefotetan, or ampicillin+sulbactam

• Biliary tract Enteric Gramnegative bacilli, clostridia, Enterococcus sp.