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New approached in the diagnosis of sepsis

World Congress on Infectious Diseases

Eiman Mokaddas

ScientificTracks Abstracts: J Infect Dis Ther

DOI: 10.4172/2332-0877.S1.002

Abstract

Introduction: Sepsis is a fatal condition caused by body’s immune system over-reacting to infection. It carries both high
morbidity and mortality. Early diagnosis of sepsis can greatly reduce both.
Objectives: To evaluate the comparative performance of Verigine blood culture nucleic acid system to conventional techniques
in the rapid diagnosis of sepsis by both identifying bacteria and their resistance markers.
Methods: All blood culture bottles showing Gram-positive cocci and Gram-negative bacilli were processed by Verigene
according to the manufacturer’s instructions and were cultured simultaneously by conventional methods for both ID as well as
susceptibility using VitekII (Biomerioux, France).
Results: A total of 63 patients with Gram-positive sepsis and 63 patients with Gram-negative sepsis were included in the
evaluation. Verigine system correctly identified all stapylococcoci, streptococci and enterococci, Enterobacteriacae and
Pseudomonase euroginosa compared to the conventional culture. It correctly identified 11 methicillin-susceptible Staphylococcus
aureus (MRSA) and 15 methicillin resistant coagulase negative staphylococci. It correctly identified one MRSA, failed to identify
2 and falsely identified 2. It correctly identified 11 vancomycin sensitive enterococci. By rapid identification of staphylococci
together with their resistance markers, vancomycin was de-escalated to cloxacillin in 11 patients and cloxacillin was escalated
to vancomycin in 2 and all antibiotics were stopped in 14 patients. By rapid identification of Gram-negative bacteria, deescalation
and escalation from and to carbapenems occurred in 2 and 20 patients respectively.
Conclusion: Rapid molecular diagnosis of sepsis can greatly assist in the proper use of antimicrobial agents hens, helping the
antimicrobial stewardship program.

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