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Table 3 Definition criteria and antibiotic panel for Acinetobacter baumannii complex

From: The effect of varying multidrug-resistence (MDR) definitions on rates of MDR gram-negative rods

Antimicrobial category

ECDC-MDR

KRINKO-3MRGN

KRINKO-4MRGN

UHZ-MDR

Antipseudomonal penicillins

Piperacillin/ tazobactam or ticarcillin/ clavulanic acid

Piperacillin a)

Piperacillin a)

Piperacillin/ tazobactam

Extended spectrum cephalosporins

Cefotaxime or ceftriaxone or ceftazidime or cefepime

Cefotaxime b) or ceftazidime

Cefotaxime b) or ceftazidime

Ceftazidime and cefepime

Carbapenems

Imipenem or meropenem or doripenem

Imipenem or meropenem

Imipenem or meropenem

Imipenem or meropenem

Quinolones

Ciprofloxacin or levofloxacin

Ciprofloxacin

Ciprofloxacin

Ciprofloxacin and levofloxacin

Aminoglycosides

Amikacin or gentamicin or tobramycin or netilmicin

  

≥2 of: Amikacin, gentamicin, tobramycin

Folate pathway inhibitors

Trimethoprim/ sulphamethoxazol

   

Penicillins plus beta-lactamase-inhibitors

Ampicillin/ sulbactam

   

Polymyxins

Colistin or polymyxin B

   

Tetracyclines

Tetracycline or doxycycline or minocycline

   

Definition of MDR

Resistant to ≥3 categories

Resistant to antipseudomonal penicillin and cephalosporin-group and quinolone and susceptible to carbapenems

Resistant to all 4 categories or If a carbapenem is resistant all Acinetobacter are interpreted as 4MRGN or Acinetobacter with carbapenemase production

Resistant to 3 out of 5 categories

  1. Abbreviations: ECDC-MDR Multidrug resistance according to the European Centre for Disease Prevention and Control, KRINKO-3MRGN Multidrug resistance to three antibiotic categories according to the German Commission of Hospital Hygiene and Infection Prevention, KRINKO-4MRGN Multidrug resistance to four antibiotic categories according to the German Commission of Hospital Hygiene and Infection Prevention, MDR Multidrug resistant, UHZ-MDR multidrug resistance according to University Hospital Zurich guidelines
  2. a) as piperacillin/tazobactam and not piperacillin was tested: Resistance to ceftriaxone and/or ceftazidime was interpreted as resistance to piperacillin (15)
  3. b) as cefotaxime was not tested, ceftazidime replaces cefotaxime
  4. Italic font: not tested in UHZ or only tested by MIC under special circumstances