Emergence of Carbapenem-Resistant Klebsiella pneumoniae: Progressive Spread and Four-Year Period of Observation in a Cardiac Surgery Division

Table 2

Antimicrobial resistance profile of clinical isolates of carbapenem-resistant K. pneumoniae from our hospital (February 2010–December 2013).

Antibiotic/MIC (g/mL)	Total	Carbapenemase
	no (%)	MBL/no	KPC/no
IMP
>4	98 (100)	9	89
MER
>8	98 (100)	9	89
EPT
>8	98 (100)	9	89
GEN
>4	63 (64)	6	57
SXT
>40	30 (31)	4	26
CS
>2	1 (1)	—	1
TGC
>2	60 (61)	6	54
FEP
>4	98 (100)	9	89
CTX
>4	98 (100)	9	89
CAZ
>4	98 (100)	9	89
CIP
>1	96 (98)	7	89
LVX
>2	96 (98)	7	89

IMP: imipenem; MER: meropenem; EPT: ertapenem; GEN: gentamicin; SXT: trimethoprim-sulfamethoxazole; CS: colistin; TGC: tigecycline; FEP: cefepime; CTX: cefotaxime; CAZ: ceftazidime; CIP: ciprofloxacin; LVX: levofloxacin.