Multidrug-resistant gram-negative bacteria

Multidrug-resistant gram-negative bacteria

MDRGN bacteria is an abbreviation for multidrug resistant gram-negative bacteria. For hospitalized patients, and especially patients in intensive care units, these bacterial infections pose a serious and (as of 2010) rapidly emerging threat.

Overuse of antimicrobial agents and problems with infection control practices have led to the development of multidrug-resistant gram-negative bacterial infections. We used to use carbapenems as the main option in several countries for those severe infections; however, now there are several mechanisms of resistance, including carbapenemase production among Acinetobacter, Pseudomonas, and Klebsiella isolates. Subsequently, carbapenems are sometimes not active against those serious infections. That is why clinicians around the world have reconsidered the use of older antimicrobial agents, including polymyxins. — Matthew Falagas, MD.

The above quote was taken from an interview by Luke F. Chen, at the Infectious Diseases Society of America 2010 Annual Meeeting.[1] A study of MDRGN in long-term care facilities, reported in 2010, concluded that patients with severe dementia who require assistance with the activities of daily life are at high risk of MDRGN co-colonization and may be the "superspreaders" of MDRGN in these facilities.[2]


  1. ^ Chen, Luke F. (23-Nov-2010). "The Increasing Threat of Multidrug-Resistant Gram-Negative Infections". Medscape Medical News (WebMD). Retrieved 01-Dec-2010. 
  2. ^ Graham M., Snyder; O'Fallon, E and D'Agata, EMC (21-Mar-2010). "Risk Factors for Co-Colonization with Multidrug-Resistant Gram-Negative Bacteria in a Long-Term Care Facility". Atlanta: International Conference on Healthcare-Associated Infections. Retrieved 01-Dec-2010. 

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