A Case of a Persistent Postoperative Infection Caused by Multidrug-Resistant Kluyvera ascorbata in the Oral and Maxillofacial Region

Table 1

Results of antimicrobial susceptibility testing (AST).

Name	Group	MIC (μg/ml)	AST
Cefazolin	A	≥8	Resistant
Ampicillin	A	≥32	Resistant
Gentamicin	A	≤2	Sensitive
PIZ	B	≥128/4	Resistant
Piperacillin	B	≥128	Resistant
Cefuroxime	B	≤4	Resistant
Cefotaxime	B	≥64	Resistant
Cefepime	B	≤4	Sensitive
Imipenem	B	≤1	Sensitive
Amikacin	B	≤8	Sensitive
Ciprofloxacin	B	≤0.25	Sensitive
Levofloxacin	B	≤1	Sensitive
SXT	B	≤0.5/9.5	Sensitive
Aztreonam	C	≥16	Resistant
Ceftazidime	C	≤4	Resistant
Chloramphenicol	C	≤4	Sensitive
Cefoperazone	O	≤8	Sensitive
Minocycline	O	≤2	Sensitive
CPS	O	≥64/64	Resistant
Nitrofurantoin	U	≥128	Resistant
Ofloxacin	U	≤1	Sensitive

Dose and usage are for adults. Group A (drug of first choice): priority selection; Group B (drug of first choice): selection of drug resistance or nonuse in Group A; Group C: selection of drug resistance or nonuse in Group A and B; A supplement to the urethra; Group O: other drugs. Kluyvera ascorbata with the ability to produce extended spectrum beta-lactamases is resistant to penicillins, first-generation to third-generation cephalosporins, and most beta-lactams, even with a sensitive result in vitro.