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. 2020 Nov 23;76(3):680–683. doi: 10.1093/jac/dkaa487

Table 1.

Efficacy of imipenem and meropenem, alone and in combination, in the experimental peritoneal sepsis models with carbapenem-resistant A. baumannii isolates

Isolate Treatment group n Doses (mg/kg) Spleen (log10 cfu/g) Blood (log10 cfu/mL) Bacteraemia (%) Mortality (%)
OXA-58 Control 15 8.97 ± 0.72 7.39 ± 2.23 93 36
IPM 15 30 5.55 ± 1.94a 3.86 ± 2.85a 87 7
MEM 15 300 1.93 ± 2.59a,b 0.46 ± 0.93a,b 27a,b 0a
IPM+MEM 15 1.73 ± 2.26a,b 0.23 ± 0.64a,b 13a,b 0a
OXA-23 Control 15 8.96 ± 1.13 5.55 ± 1.94 100 79
IPM 15 30 8.12 ± 0.53a 6.56 ± 1.10 100 67
MEM 15 300 5.44 ± 0.74a 3.84 ± 0.98a,b 100 27a,b
IMP+MEM 15 4.66 ± 1.66a,b 1.59 ± 0.99a,b,c 80 13a,b

Control received no antimicrobial treatment; IPM, imipenem; MEM, meropenem.

a

P ≤ 0.05 with respect to Control group.

b

P ≤ 0.05 with respect to IPM group.

c

P ≤ 0.05 with respect to MEM group.