Increased frequency of blaNDM in a tertiary care hospital in Southern Brazil

• Autor(a) principal: Wink, Priscila Lamb
• Data de Publicação: 2021
• Outros Autores: Martins, Amanda Silva, Volpato, Fabiana Caroline Zempulski, Zavascki, Alexandre Prehn, Barth, Afonso Luis
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/230809
• topic: Beta-lactamases; Carbapenêmicos; Farmacorresistência bacteriana múltipla; Carbapenemase; Dissemination; NDM-1; New Delhi metallo-beta-lactamase; Resistance

Resistance to carbapenems due to metallo-beta-lactamase NDM-1 was first described in Brazil in 2013. To date, only a few scattered reports of the prevalence of NDM-1 in the country have been reported, and most of them indicated a very low prevalence of this metalloenzyme. In the present study, we report a steady increase in the frequency of NDM among Enterobacterales resistant to carbapenems in a tertiary care hospital in southern Brazil. Carbapenemase genes were evaluated by multiplex real-time polymerase chain using high-resolution melting analysis among 3501 isolates of 8 different species of Enterobacterales recovered from January 2015 to May 2020. The blaKPC-like was identified in 3003 isolates (85.8%) and the blaNDM-like was the second most common gene (351 isolates—10%). There was a steady increase in frequency of blaNDM-like, from 4.2% in 2015 to 24%in 2020. The increase of blaNDM frequency raises an important matter as novel therapeutic options are currently very limited for the treatment of patients infected by bacteria carrying the blaNDM.