Rapid increase in resistance to third generation cephalosporins, imipenem and co-resistance in Klebsiella pneumoniae from isolated from 7,140 blood-cultures (2010-2014) using EARS-Net data in Spain. / Rápido aumento de la resistencia a cefalosporinas de 3a generación, imipenem y de la corresistencia en 7.140 aislados de Klebsiella pneumoniae en hemocultivos (2010-2014) según datos de EARS-Net en España.

INTRODUCTION: An analysis was made about the evolution of resistance to 3rd generation cephalosporins, imipenem, and other antibiotics in invasive isolates of Klebsiella pneumoniae (K. pneumoniae) according to the Spanish EARS-Net database (2010-2014). METHODS: Forty-two hospitals from 16 Autonomous Communities with an approximate population coverage of 33% participated. RESULTS: A total 7,140 pneumoniae corresponding to the same number of patients were studied. Overall resistance percentages (I+R) were: cefotaxime 15.8%, ceftazidime 13.7%, imipenem 1.7%, ciprofloxacin 20.1%, tobramycin 14.1%, gentamicin 10.4%, and amikacin 1.9%. Resistance to 3rd generation cephalosporins increased from 9.8% (2010) to 19% (2014); to ciprofloxacin from 15.4% (2010) to 19.6% (2014); to gentamicin from 6.2% (2010) to 10.3% (2014) and to tobramycin from 7.1% (2010) to 14.2% (2014) (p<.001 in all cases). Combined resistance to 3rd generation cephalosporins, ciprofloxacin, and aminoglycosides increased from 3.3% (2010) to 9.7% (2014) (p<.001). Resistance to imipenem also increased from 0.27% (2010) to 3.46% (2014) (p<.001). A total of 121 isolates were resistant to imipenem, of which 104 (86%) produced carbapenemases: 74 OXA-48, 14 VIM, 9 KPC (6 KPC-2 and 3 KPC-3), 6 IMP, and 1 GES. CONCLUSIONS: Over the 5 year period (2010-2014), resistance to 3rd generation cephalosporins in invasive K. pneumoniae in Spain has doubled. The combined resistance to 3rd generation cephalosporins, ciprofloxacin, and aminoglycosides has tripled, and imipenem resistance has increased almost 13 times, mostly due to the spread of carbapenemase-producing isolates.

Rápido aumento de la resistencia a cefalosporinas de 3a generación, imipenem y de la corresistencia en 7.140 aislados de Klebsiella pneumoniae en hemocultivos (2010-2014) según datos de EARS-Net en España / Rapid increase in resistance to third generation cephalosporins, imipenem and co-resistance in Klebsiella pneumoniae from isolated from 7,140 blood-cultures (2010-2014) using EARS-Net data in Spain

Introducción: Se analizó la evolución de la resistencia a cefalosporinas de 3.a generación, imipenem y otros antibióticos en aislamientos invasivos de Klebsiella pneumoniae (K. pneumoniae) según resultados de EARS-Net entre 2010 y 2014 en España. Métodos: Participaron 42 hospitales de 16 Comunidades Autónomas, con una cobertura poblacional aproximada del 33%. Resultados: Se aislaron 7.140 cepas de K. pneumoniae de un mismo número de pacientes. Las resistencias globales (I+R) fueron: cefotaxima 15,8%, ceftazidima 13,7%, imipenem 1,7%, ciprofloxacina 20,1%, tobramicina 14,1%, gentamicina 10,4% y amikacina 1,9%. La resistencia a cefalosporinas de 3.a generación aumentó desde el 9,8% (2010) al 19% (2014); la de ciprofloxacina desde el 15,4% (2010) al 19,6% (2014); la de gentamicina desde el 6,2% (2010) al 10,3% (2014) y la de tobramicina desde el 7,1% (2010) al 14,2% (2014) (p< 0,001 en todos los casos). Las cepas resistentes a la vez a cefalosporinas de 3.a generación, ciprofloxacina y aminoglucósidos aumentaron desde el 3,3% (2010) al 9,7% (2014) (p<0,001). La resistencia a imipenem aumentó desde el 0,27% (2010) al 3,46% (2014) (p< 0,001); 121 aislados fueron resistentes a imipenem, de los cuales 104 (86%) produjeron carbapenemasas: 74 OXA-48, 14 VIM, 9 KPC (6 KPC-2 y 3 KPC-3), 6 IMP y 1 GES. Conclusiones: En un periodo de 5 años (2010-2014), la resistencia a cefalosporinas de 3.a generación en K. pneumoniae invasivas en España se ha duplicado; la resistencia combinada a cefalosporinas de 3.a generación, ciprofloxacina y aminoglucósidos se ha triplicado; la resistencia a imipenem ha aumentado casi 13 veces, principalmente por la diseminación de aislados productores de carbapenemasas (AU)

Introduction: An analysis was made about the evolution of resistance to 3rd generation cephalosporins, imipenem, and other antibiotics in invasive isolates of Klebsiella pneumoniae (K. pneumoniae)according to the Spanish EARS-Net database (2010-2014). Methods: Forty-two hospitals from 16 Autonomous Communities with an approximate population coverage of 33% participated. Results: A total 7,140 pneumoniae corresponding to the same number of patients were studied. Overall resistance percentages (I+R) were: cefotaxime 15.8%, ceftazidime 13.7%, imipenem 1.7%, ciprofloxacin 20.1%, tobramycin 14.1%, gentamicin 10.4%, and amikacin 1.9%. Resistance to 3rd generation cephalosporins increased from 9.8% (2010) to 19% (2014); to ciprofloxacin from 15.4% (2010) to 19.6% (2014); to gentamicin from 6.2% (2010) to 10.3% (2014) and to tobramycin from 7.1% (2010) to 14.2% (2014) (p<.001 in all cases). Combined resistance to 3rd generation cephalosporins, ciprofloxacin, and aminoglycosides increased from 3.3% (2010) to 9.7% (2014) (p<.001). Resistance to imipenem also increased from 0.27% (2010) to 3.46% (2014) (p<.001). A total of 121 isolates were resistant to imipenem, of which 104 (86%) produced carbapenemases: 74 OXA-48, 14 VIM, 9 KPC (6 KPC-2 and 3 KPC-3), 6 IMP, and 1 GES. Conclusions: Over the 5 year period (2010-2014), resistance to 3rd generation cephalosporins in invasive K. pneumoniae in Spain has doubled. The combined resistance to 3rd generation cephalosporins, ciprofloxacin, and aminoglycosides has tripled, and imipenem resistance has increased almost 13 times, mostly due to the spread of carbapenemase-producing isolates (AU)