儿童急性淋巴细胞白血病化疗后血流感染的病原体分布与耐药变迁分析

doi:10.7499/j.issn.1008-8830.2109023

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Abstract Objective To study the changes in the distribution and drug resistance profiles of pathogens causing bloodstream infection after chemotherapy in children with acute lymphoblastic leukemia. Methods The medical data were collected from the children with acute lymphoblastic leukemia who were admitted to the First Affiliated Hospital of Zhengzhou University between January 2015 and December 2020 and developed bloodstream infection after chemotherapy. The samples were divided into the first three years group and the next three years group according to the time of testing to investigate the differences in the distribution and drug resistance profiles of pathogens as time. Results A total of 235 strains of pathogens were isolated, among which there were 159 Gram-negative strains (67.7%; mainly Escherichia coli and Klebsiella pneumoniae), 61 Gram-positive strains (26.0%; mainly Staphylococcus epidermidis), and 15 strains of fungi (6.4%; mainly Candida albicans). There were no significant differences between the first three years group and the next three years group in the detection rate of Gram-negative bacteria (68.8% vs 66.9%, P>0.05) or Gram-positive bacteria (29.2% vs 23.7%, P>0.05). Compared with the first three years group, the next three years group had significant increases in the detection rate of Streptococcus mitis (5.8% vs 0.0%, P<0.05) and fungi (9.4% vs 2.1%, P<0.05). There was no significant difference in the drug resistance rate of Gram-negative or Gram-positive bacteria between the two groups (P>0.05). Conclusions Enterobacteriaceae bacteria are the main pathogens of bloodstream infection after chemotherapy in children with acute lymphoblastic leukemia, while the detection rates of Streptococcus mitis and fungi tend to increase as time, which needs to be taken seriously in clinical practice.

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	ZHAN Yu-Xiao
	ZHANG Jian
	FAN Cai-Fang
	FAN Wen-Juan
	XU Min

Key words： Acute lymphoblastic leukemia Bloodstream infection Pathogen Drug resistance Child

Received: 05 September 2021

Cite this article:

ZHAN Yu-Xiao,ZHANG Jian,FAN Cai-Fang et al. Distribution and drug resistance profiles of pathogens causing bloodstream infection after chemotherapy in children with acute lymphoblastic leukemia[J]. CJCP, 2022, 24(2): 176-181.

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http://www.zgddek.com/EN/10.7499/j.issn.1008-8830.2109023 OR http://www.zgddek.com/EN/Y2022/V24/I2/176

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