肝移植术后感染病原菌分布及耐药性分析

韩铎; 何宏; 王宏伟; 田婷婷; 李静

doi:10.3969/j.issn.1001-5256.2023.06.017

肝移植术后感染病原菌分布及耐药性分析

DOI: 10.3969/j.issn.1001-5256.2023.06.017

韩铎^{1, 2, 3},
何宏¹,
王宏伟¹,
田婷婷¹,
李静^{1, 2, , ,}

1.
青岛大学附属医院检验科，山东青岛 266061
2.
青岛大学医学部医学检验系，山东青岛 266073
3.
淄博市周村区人民医院检验科，山东淄博 255300

基金项目:

青岛市医疗卫生优秀青年医学人才项目 (2019YQ014);

青岛大学附属医院青年科研基金 (QDFY2019022)

伦理学声明：本研究方案经由青岛大学附属医院伦理委员会审批，批号：QYFY WZLL 27405。

利益冲突声明：本文不存在任何利益冲突。

作者贡献声明：韩铎负责资料搜集，资料分析与总结，撰写论文；何宏负责拟定写作思路，修改文章；王宏伟参与数据整理，指导撰写文章；田婷婷参与搜集资料，修改文章；李静负责论文写作方向设计并最后定稿。

详细信息

通信作者:
李静，qdjingl@163.com (ORCID: 0000-0001-7484-7720)

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出版历程
- 收稿日期: 2022-10-25
- 录用日期: 2022-11-28
- 出版日期: 2023-06-20

Distribution and drug resistance of pathogenic bacteria for infection after liver transplantation

Duo HAN^{1, 2, 3},
Hong HE¹,
Hongwei WANG¹,
Tingting TIAN¹,
Jing LI^{1, 2
, ,
,}

1.
Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266061, China
2.
Department of Laboratory Medicine, Qingdao University School of Medicine, Qingdao, Shandong 266073, China
3.
Department of Clinical Laboratory, The People's Hospital of Zhoucun District, Zibo, Shandong 255300, China

Research funding:

Qingdao Medical and Health Excellent Young Medical Talents Project (2019YQ014);

Youth Research Fund of Affiliated Hospital of Qingdao University (QDFY2019022)

More Information

Corresponding author: LI Jing, qdjingl@163.com (ORCID: 0000-0001-7484-7720)

摘要

摘要: 目的分析肝移植术后感染病原菌分布及耐药性，为临床合理应用抗菌药物提供科学依据。方法对2014年3月—2021年12月青岛大学附属医院904例肝移植术后感染患者送检的各类标本分离出的病原菌分布及耐药性进行分析。采用WHONET 5.6软件对菌株列表及细菌耐药率进行统计；采用Excel对标本来源、构成比及病原菌分布情况等进行统计分析。结果共分离出非重复性病原菌2 208株，主要分离自呼吸道(31.25%)、胆汁(22.28%)、腹水(13.18%)、血液(8.38%)和引流液(4.62%)，前10位病原菌为肺炎克雷伯菌肺炎亚种(10.69%)、屎肠球菌(10.42%)、大肠埃希菌(8.24%)、铜绿假单胞菌(8.24%)、表皮葡萄球菌(8.06%)、鲍曼不动杆菌(7.93%)、嗜麦芽窄食单胞菌(6.61%)、阴沟肠杆菌(3.22%)、溶血葡萄球菌(3.08%)和金黄色葡萄球菌(2.94%)，共占比69.43%。呼吸道标本的主要致病菌为铜绿假单胞菌、嗜麦芽窄食单胞菌、肺炎克雷伯菌肺炎亚种和鲍曼不动杆菌，胆汁、腹水和引流液标本的主要致病菌为屎肠球菌，血液标本的主要致病菌为大肠埃希菌、表皮葡萄球菌和肺炎克雷伯菌肺炎亚种。药敏数据显示：肠杆菌目细菌对头孢菌素类和氟喹诺酮类均有较高的耐药率，对氨基糖苷类中阿米卡星的耐药率＜10%，未检出对替加环素耐药菌株，其中肺炎克雷伯菌肺炎亚种对美罗培南、亚胺培南的耐药率分别为14.71%、11.35%，均高于大肠埃希菌(5.66%、6.29%)；非发酵菌对碳青霉烯类药物均有较高的耐药率，但对替加环素和黏菌素耐药率均＜10%。革兰阳性球菌中，屎肠球菌对万古霉素和奎奴普丁/达福普汀的耐药率分别为6.17%和2.44%，未发现对替加环素和利奈唑胺耐药的屎肠球菌；表皮葡萄球菌对大环内酯类、氟喹诺酮类、磺胺类和林可霉素类抗菌药物的耐药率均＞50%，少部分菌株对利奈唑胺和奎奴普丁/达福普汀耐药(＜3%)，未检出对替加环素和万古霉素耐药的表皮葡萄球菌。重点监测耐药菌287株，占比13%，分别为耐碳青霉烯类鲍曼不动杆菌128株、耐碳青霉烯类铜绿假单胞菌88株、耐碳青霉烯类肺炎克雷伯菌肺炎亚种26株、耐碳青霉烯类大肠埃希菌11株、耐甲氧西林金黄色葡萄球菌23株和耐万古霉素肠球菌11株，其中，耐碳青霉烯类肺炎克雷伯菌肺炎亚种主要产丝氨酸碳青霉烯酶，耐碳青霉烯类大肠埃希菌主要产金属β-内酰胺酶。结论肝移植术后感染的病原菌以革兰阴性菌为主，不同标本类型病原菌的种类分布不同，部分菌株耐药率呈增长趋势，需要加强医院感染和抗菌药物的管理。
- 肝移植 /
- 细菌感染 /
- 抗药性, 细菌
Abstract: Objective To investigate the distribution and drug resistance of pathogenic bacteria for infection after liver transplantation, and to provide a scientific basis for the rational clinical application of antibiotics. Methods The pathogenic bacteria isolated from the specimens of 904 patients with infection after liver transplantation in The Affiliated Hospital of Qingdao University from March 2014 to December 2021 were analyzed in terms of distribution and drug resistance. WHONET 5.6 software was used to perform a statistical analysis of strains and bacterial resistance rate, and Excel was used to analyze the sources of specimens, composition ratios, and distribution of pathogenic bacteria. Results A total of 2 208 non-repetitive pathogenic bacteria were isolated, mainly from the specimens of respiratory tract (31.25%), bile (22.28%), ascites (13.18%), blood (8.38%), and drainage fluid (4.62%). The top 10 pathogenic bacteria were Klebsiella pneumoniae subspecies (10.69%), Enterococcus faecium (10.42%), Escherichia coli (8.24%), Pseudomonas aeruginosa (8.24%), Staphylococcus epidermidis (8.06%), Acinetobacter baumannii (7.93%), Stenotrophomonas maltophilia (6.61%), Enterobacter cloacae (3.22%), Staphylococcus haemolyticus (3.08%), and Staphylococcus aureus (2.94%), accounting for 69.43% of the total pathogenic bacteria. Pseudomonas aeruginosa, Stenotrophomonas maltophilia, Klebsiella pneumoniae subspecies, and Acinetobacter baumannii were the main pathogenic bacteria isolated from respiratory tract specimens; Enterococcus faecium was the main pathogenic bacterium isolated from bile, ascites, and drainage fluid specimens; Escherichia coli, Staphylococcus epidermidis, and Klebsiella pneumoniae subspecies were the main pathogenic bacteria isolated from blood specimens. Drug sensitivity data showed that Enterobacterales bacteria had a relatively high resistance rate to cephalosporins and fluoroquinolones and a resistance rate of < 10% to amikacin among aminoglycosides, with no strains resistant to tigecycline; compared with Escherichia coli, Klebsiella pneumoniae subspecies had a higher resistance rate to meropenem (14.71% vs 5.66%) and imipenem (11.35% vs 6.29%); non-fermentative bacteria had a relatively high resistance rate to carbapenems, with a resistance rate of < 10% to tigecycline and colistin. Among Gram-positive cocci, Enterococcus faecium had a resistance rate of 6.17% to vancomycin and 2.44% to quinupristin/dalfopristin, with no strains resistant to tigecycline and linezolid; Staphylococcus epidermidis had a resistance rate of > 50% to macrolides, fluoroquinolones, sulfonamides, and lincomycin, and a small part of these strains were resistant to linezolid and quinupristin/dalfopristin (< 3%), with no Staphylococcus epidermidis strains resistant to tigecycline and vancomycin. A total of 287 drug-resistant strains were monitored, accounting for 13%, among which there were 128 carbapenem-resistant Acinetobacter baumannii strains, 88 carbapenem-resistant Pseudomonas aeruginosa strains, 26 carbapenem-resistant Klebsiella pneumoniae subspecies strains, 11 carbapenem-resistant Escherichia coli strains, 23 methicillin-resistant Staphylococcus aureus strains, and 11 vancomycin-resistant Enterococcus strains. The carbapenem-resistant Klebsiella pneumoniae subspecies strains mainly produced serine carbapenemase, and the carbapenem-resistant Escherichia coli strains mainly produced metal β-lactamase. Conclusion Gram-negative bacteria are the main pathogenic bacteria for infection after liver transplantation, and there are differences in the distribution of pathogenic bacteria between different types of specimens. The resistance rate of some strains tend to increase, and therefore, it is necessary to strengthen the management of nosocomial infection and antibiotics.
- Liver Transplantation /
- Bacterial Infections /
- Drug Resistance, Bacterial

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图 1 肝移植术后感染病原菌的标本来源及构成比

Figure 1. Specimen source and composition ratio of pathogenic bacteria after liver transplantation

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图 2 历年肝移植术后感染革兰阴性菌和革兰阳性菌的分布比例

Figure 2. Distribution proportion of Gram-negative bacteria and Gram-positive bacteria infected after liver transplantation in past years

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图 3 历年肝移植术后感染主要革兰阴性菌检出率变化

Figure 3. Changes in the detection rate of major Gram-negative bacteria infected after liver transplantation over the years

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图 4 肝移植术后感染主要病原菌分布(前15位)

Figure 4. Distribution of main pathogens of infection after liver transplantation (top 15)

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图 5 肺炎克雷伯菌肺炎亚种对常用抗菌药物的耐药率

Figure 5. Resistance rate of Klebsiella pneumoniae to commonly used antibiotics

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图 6 大肠埃希菌对常用抗菌药物的耐药率

Figure 6. Resistance rate of Escherichia coli to commonly used antibiotics

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图 7 铜绿假单胞菌对常用抗菌药物的耐药率

Figure 7. Resistance rate of Pseudomonas aeruginosa to commonly used antibiotics

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图 8 鲍曼不动杆菌对常用抗菌药物的耐药率

Figure 8. Resistance rate of Acinetobacter baumannii to commonly used antibiotics

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图 9 嗜麦芽假食单胞菌对常用抗菌药物的耐药率

Figure 9. Resistance rate of Pseudomonas maltophilia to commonly used antibiotics

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图 10 屎肠球菌对常用抗菌药物的耐药率

Figure 10. Resistance rate of Enterococcus faecium to commonly used antibiotics

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图 11 表皮葡萄球菌对常用抗菌药物的耐药率

Figure 11. Resistance rate of Staphylococcus epidermidis to commonly used antibiotics

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图 12 历年常见耐药菌检出率变化趋势

注：CR-ECO，耐碳青霉烯类大肠埃希菌；CR-KPN，耐碳青霉烯类肺炎克雷伯菌肺炎亚种；CR-AB，耐碳青霉烯类鲍曼不动杆菌；CR-PA，耐碳青霉烯类铜绿假单胞菌；MRSA，耐甲氧西林金黄色葡萄球菌；VRE，耐万古霉素肠球菌。

Figure 12. Change trend of detection rate of common drug-resistant bacteria over the years

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表 1 肝移植术后感染的不同标本病原菌构成比

Table 1. Pathogen composition ratio of different specimens infected after liver transplantation

标本种类	病原菌种类	菌株数	构成比
呼吸道	铜绿假单胞菌	127	5.75%
	嗜麦芽窄食单胞菌	105	4.76%
	肺炎克雷伯菌肺炎亚种	103	4.66%
	鲍曼不动杆菌	101	4.57%
	金黄色葡萄球菌	41	1.86%
	其他	213	9.65%
胆汁	屎肠球菌	94	4.26%
	大肠埃希菌	54	2.45%
	肺炎克雷伯菌肺炎亚种	41	1.86%
	其他	303	13.72%
腹水	屎肠球菌	53	2.40%
	表皮葡萄球菌	34	1.54%
	肺炎克雷伯菌肺炎亚种	19	0.86%
	其他	185	8.38%
血液	大肠埃希菌	28	1.27%
	表皮葡萄球菌	25	1.13%
	肺炎克雷伯菌肺炎亚种	23	1.04%
	其他	109	4.94%
引流液	屎肠球菌	18	0.82%
	大肠埃希菌	15	0.68%
	表皮葡萄球菌	13	0.59%
	其他	56	2.54%
其他		448	20.29%

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