Superficial
N = 65
Deep-Mediastinitis
N = 22
P
Days until infection, mean (SD, d)
Fever (%)
Leucocytosis, mean (SD)
Isolated microorganism (%)
Staphylococcus aureus
Staphylococcus aureus MR Staphylococcus Coagulase-negative Staphylococcus
epidermidis
Enterococcus faecalis
Streptococcus viridans
Pseudomonas aeruginosa
Other gram negative 1
Polimicrobian
Bacteremia (%)
11.5 (7.4)
22 (33.8)
11.102 (4230)

3 (4.6)
1 (1.5)
33 (50.7)
9 (13.8)
2 (3.1)
1 (1.5)
1 (1.5)
1 (1.5)
8 (12.3)
6 (9.4)
13.5 (7.9)
14 (63,6)
12.946 (4712)

3 (13.6)
-
4 (18.2)
9 (40.9)
2 (9.1)
-
-
2 (9.1)
-
6 (27.3)
0.3
0.01
0.09










0.03
Case-fatality ratio (%) 5 (7.6) 5 (22.7) 0.05
1Includes: Proteus mirabilis (1), Proteus vulgaris (1), Serratia marcensces (1).
Abbreviations: SD: standard deviation, MR: methicillin-resistant
Table 2: Surgical site infection characteristics and systemic effect.