1887

Abstract

We aimed to define the microbiological characteristics of diabetic foot infection in patients in the Beijing area and to explore the demographic and clinical factors correlated with pathogen distribution.

As part of a retrospective multicentre surveillance program conducted in eight hospitals in Beijing 2010–2014, we recruited all inpatients for whom bacterial culture had been performed. Demographic, clinical, laboratory and surgery data were obtained from medical records. Statistical analysis was performed to analyse data on microbiological and clinical characteristics.

A total of 456 cases were included. The culture positivity was 95.4 %. Among all patients with positive cultures, 88 cases (20.2 %) had polymicrobial infections. Five hundred and fifty-one species were isolated from all specimens, including 39.6 % Gram-positive bacteria and 57.5 % Gram-negative bacteria. accounted for 41.0 % of all isolates. (17.1 %), (13.1 %), spp. (9.8 %), (9.3 %) and coagulase-negative (8.3 %) were the most frequently isolated species. The rate of resistance to methicillin was 24.5 % for . The susceptibility of to all antibiotics was over 60 %. The rate of extended-spectrum β-lactamase production among was 52.6 %. and show high sensitivity to piperacillin/tazobactam, carbapenems and amikacin. Multivariate analysis showed that patient age >60 years was independently associated with Gram-negative rods.

were the most frequently isolated organisms in our area. Older patients were more likely to suffer from Gram-negative rod infections. Gram-negative rods show high sensitivity to piperacillin/tazobactam, carbapenems and amikacin.

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2018-02-01
2024-12-08
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