Incidence and etiology of stent associated respiratory tract infection caused by coated metal and silicone airway stents
- VernacularTitle:金属和硅酮支架气道置入后引起支架相关呼吸道感染的发生率和病原学比较
- Author:
Jie-Li ZHANG
1
;
Heng ZOU
;
Nan ZHANG
;
Hong-Wu WANG
;
Yun-Zhi ZHOU
;
Jian-Kun LIU
;
Dong-Mei LI
Author Information
1. 煤炭总医院 肿瘤内科
- Keywords:
stent associated respiratory tractinfection (SARTI);
metal stent;
silicone stent;
airway stenosis
- From:
Basic & Clinical Medicine
2018;38(3):385-389
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the incidence and bacterial etiology of stent associated respiratory tract infec-tion (SARTI) caused by two types of airway stents.Methods Silicone and coated metal airway stent were placed into patients with central airway stenosis caused by varied pathologies. The incidence of stent related respiratory tract infection,bacteria etiology of SARTI and improved dyspnea score were compared between two groups receiving different airway stent.Results 1)Totally 171 patients received airway stents, and among them, 39 patients (22.81%) developed SARTI.2)The incidence of SARTI in metal stent group and silicone stent group was 29.21% (26/89) vs.15.85% (13/82),P<0.05;3)Bacterial spectrum of SARTI was different in metal and silicone stent groups:staphylococcus aureus was 38.46% vs. 69.23%,respectively;candida albicans was 23.08% vs. 0%,re-spectively;Singular proteus was 7.26% vs.0%,respectively;4)The narrowed lumen was improved from 74.27%± 7.13% to 17.64%±6.22%in the metal stent group,while the data was improved from 74.94%±9.18% to 12.68%± 8.32% in the silicone stent group (P<0.01). Accordingly, the dyspnea symptomscore was improvedfrom 2.85 ± 0.89 to 0.85±0.68 in metal stent group,and from 2.88±0.91 to 0±0.61 in the silicone stent group (P<0.05). Conclusions Compared with metal airway stents,silicone stents have a lower incidence of SARTI,which mightbe due to the projections in the silicon stent surface and wider expanded in the bronchial stenosis.
