Molecular epidemiology and survival analysis of nosocomial meningitis
induced by multi-drug resistance Enterobacteriaceae
Abstract
Objectives: To evaluate the molecular epidemiology and mortality risk
factors of nosocomial meningitis (NM) induced by multi-drug resistance
Enterobacteriaceae (MDRE) in China. Methods: We performed a multi-center
study of MDRE NM patients in 2 neurosurgical centers in China from 2014
to 2019. Molecular and phenotype microbiology epidemiology of each MDRE
were reviewed and tested, and 21 clinical variables on mortality risk
factors were extracted and evaluated by multivariate Cox analysis for
NM. Results: In total, 90 MDRE NM patients were included in this study.
Klebsiella (K.) pneumoniae occupied the highest proportion (51.11%,
46/90), 44 (44.44%) were meropenem-resistant, ceftriaxone resistance in
target MDRE was relatively high (92.22%, 83/90), blaKPC (67.50%,
27/40) was the predominant carbapenem resistance gene, and blaCTX-M-1,
blaTEM and blaCTM-M-9 were the three most popular extended spectrum
β-lactamases (ESBLs) producing genes of the MDRE. Multivariate Cox
analysis showed that external ventricular drainage (EVD, odds ratio (OR)
2.524, 95% confidence interval (CI) 1.101-5.787, P = 0.029) and Glasgow
Coma Scale (GCS) ≤8 (OR 4.033, 95% CI 1.526-10.645, P = 0.005) were
mortality risk factors of MDRE NM. Conclusions: NM caused by MDRE is an
important sign of the failure of neurosurgery, and MDRE has multiple
drug resistance genotypes, and EVD and GCS≤8 are independent mortality
risk factors of MDRE NM, which deserves the attention of microbiologist
and neurosurgical clinicians.