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Table 3 Frequency distribution of carbapenemase genotypes and their association with antimicrobial resistance among PCR positive isolates from burn patients

From: Detection of carbapenemases blaOXA48-blaKPC-blaNDM-blaVIM and extended-spectrum-β-lactamase blaOXA1-blaSHV-blaTEM genes in Gram-negative bacterial isolates from ICU burns patients

Carbapenemase genotypes Isolates N = 44 IMP (MIC µg/ml) MEM (MIC µg/ml) MAR Index
OXA-48 Pseudomonas aeruginosa 4 > 8 4 to > 8 0.82 to 0.88
Klebsiella pneumoniae 2 2 to > 8 > 4 0.76
Acinetobacter baumannii 1 > 16 > 8 0.82
Pseudomonas fluorescence 1 > 8 > 8 0.82
KPC type Escherichia coli 4 4 to > 16 2 to > 8 0.82 to 0.88
Enterobacter cloacae 3 4 to > 16 2 to > 8 0.82 to 0.88
Klebsiella pneumoniae 3 4 to > 8 2 to > 4 0.82 to 0.88
NDM type Klebsiella pneumoniae 1 > 4 > 4 0.82
Klebsiella oxytoca 1 > 8 > 8 0.82
Acinetobacter baumannii 1 > 8 > 8 0.76
Acinetobacter pittii 1 > 8 > 8 0.76
Proteus mirabilis 1 1 > 2 0.76
VIM type Pseudomonas aeruginosa 11 4 to > 16 2 to > 16 0.71 to 0.88
Citrobacter freundii 2 2 to > 4 2 to > 4 0.76 to 0.88
Proteus mirabilis 2 8 to > 16 > 4 0.82 to 0.88
Klebsiella oxytoca 1 > 2 > 1 0.82
Klebsiella pneumoniae 1 > 8 > 4 0.76
Pseudomonas putida 1 > 16 > 16 0.88
Serratia marcescens 1 > 4 > 4 0.76
KPC-VIM type Proteus mirabilis 1 > 8 > 4 0.76
OXA48-KPC-VIM type Enterobacter cloacae 1 > 16 > 16 0.82