Formation of a carbapenemase resistance detection algorithm for use in the routine laboratory.

Formation of a carbapenemase resistance detection algorithm for use in the routine laboratory. Br J Biomed Sci. 2015;72(1):12-22 Authors: Boran N, Vivian B, Logan C, Grogan J Abstract The increasing prevalence of carbapenem non-susceptible Gram negative organisms demands prompt and accurate identification of resistance mechanisms to limit their transmission. The aim of this study is to evaluate the rapid CARB screen (Rosco Diagnostica, Denmark), the 'KPC/MBL in P. aeruginosa/Acinetobacter Confirm Kit' (Rosco Diagnostica), Check-MDR Carba and Check-Direct CPE kits (Check-Points, The Netherlands). The purpose of this study is the formation of a carbapenemase resistance detection algorithm that can be used in the routine laboratory. Results of the rapid CARB screen kit were improved when isolates were tested from Muller Hinton agar with a meropenem 10 μg disc instead of blood agar. The rapid CARB screen (performed in 2-3 h) demonstrated overall 98.7% sensitivity and 87.7% specificity (n = 133). The KPC/MBL in P. aeruginosa/Acinetobacter Confirm Kit (which requires overnight incubation) demonstrated a high number of false-positive results giving 38.6% specificity and 100% sensitivity (n = 44). The Check-MDR Carba (performed in 5 h), detecting carbapenemase presence, provides a cabapenemase-positive or -negative result demonstrated 96.7% specificity and 98.6% sensitivity (n = 132). The Check-Direct CPE (performed in 3 h), which identifie...
Source: British Journal of Biomedical Science - Category: Laboratory Medicine Tags: Br J Biomed Sci Source Type: research