Investigation and control of a pseudo-outbreak of suspected Mycobacterium abscessus infection due to contamination of fiberbronchoscope in department of pulmonary and critical care medicine
10.12138/j.issn.1671-9638.20246553
- VernacularTitle:呼吸与危重症医学科疑似纤维支气管镜污染导致脓肿分枝杆菌医院感染假暴发的调查与控制
- Author:
Hui-Fang ZHOU
1
;
Yan-Ling LIANG
;
Jin-Zhou WEI
;
Cong HE
;
Hui-Qing LU
;
Qing-Song ZHANG
;
Zhong-Sheng WEI
Author Information
1. 右江民族医学院附属医院医院感染管理科,广西百色 533000
- Keywords:
fibrobronchoscope;
Mycobacterium abscessus;
healthcare-associated infection;
outbreak
- From:
Chinese Journal of Infection Control
2024;23(9):1167-1172
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate a suspected outbreak event of Mycobacterium abscessus(Mab)infection in department of pulmonary and critical care medicine in a hospital,provide basis for the precise prevention and control of healthcare-associated infection(HAI).Methods On-site epidemiological investigation and environmental hygienic detection were carried out in patients with Mab infection following fiberbronchoscopic bronchoalveolar lavage in the department of pulmonary and critical care medicine in this hospital,and targeted intervention measures were pro-posed.Results From September 7 to October 20,2022,a total of 344 cases of bronchoalveolar lavage were per-formed for patients in fiberbronchoscopy room of department of pulmonary and critical care medicine.Mab was de-tected from bronchoalveolar lavage fluid(BALF)of 10 patients.Through on-site and follow-up investigation,the initial case was defined as community-associated infection,and the other 9 cases were due to the contamination of specimens.A total of 33 environmental hygienic specimens were collected,and no Mab was detected.The event was effectively controlled after standardizing the process of bronchoscope decontamination,strengthening the infection management of ward and bronchoscopy room,and strictly implementing the certificate system of bronchoscopy de-contamination personnel.Conclusion This pseudo-outbreak is due to the contamination of fiberbronchoscope by Mab.Timely identifying risk factors as well as taking targeted prevention and control measures can effectively con-trol the spread and prevalence of Mab infection.
