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Table 4 Isolated pathogens and their resistance phenotype.

From: Are there independent predisposing factors for postoperative infections following open heart surgery?

Type of microorganism Ν, (%) Number of isolates/Resistance phenotype
Gram-positive cocci   
Staphylococcus epidermidis 8 (26.7%) 4/MRSE, 4/MSSE
Staphylococcus aureus 2 (6.7%) 1/MRSA, 1/MSSA
Staphylococcus haemolyticus 2 (6.7%) 2/MRSH
Enterococcus faecium 2 (6.7%) 2/VSE
Enterococcus faecalis 1 (3.3%) 1/VSE
Gram-negative bacteria   
Acinetobacter baumannii 8 (26.7%) 8/MBL(-)
Pseudomonas aeruginosa 2 (6.7%) 2/MBL(-)
Escherichia coli 3 (10%) 1/ESBL(-), 2/ESBL(+)
Klebsiella pneumoniae 1 (3.3%) 1/ESBL(+)
Enterobacter cloacae 1 (3.3%) 1/ESBL(-)
Total 30 (100%)  
  1. MRSE: methicillin-resistant S. epidermidis; MSSE: methicillin-susceptible S. epidermidis; MRSA: methicillin-resistant S. aureus; MSSA: methicillin-susceptible S. aureus; MRSH: methicillin-resistant S. haemolyticus; VSE: vancomycin-susceptible Enterococcus; ESBL: extended-spectrum β-lactamase; MBL: metallo-β-lactamase.