Comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea
Abstract To compare stent-induced granulation tissue hyperplasia of bare (SEMS), polyurethane-covered (PU-SEMS) and electrospun nanofibre-covered (EN-SEMS) self-expandable metallic stents in the rabbit trachea. Twenty-seven rabbits were randomly assigned to 3 groups that received SEMS, PU-SEMS or EN...
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Nature Portfolio
2021
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oai:doaj.org-article:25e2e301d5774acaa9d8d0097a0f4a0a2021-12-05T12:14:31ZComparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea10.1038/s41598-021-02573-92045-2322https://doaj.org/article/25e2e301d5774acaa9d8d0097a0f4a0a2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02573-9https://doaj.org/toc/2045-2322Abstract To compare stent-induced granulation tissue hyperplasia of bare (SEMS), polyurethane-covered (PU-SEMS) and electrospun nanofibre-covered (EN-SEMS) self-expandable metallic stents in the rabbit trachea. Twenty-seven rabbits were randomly assigned to 3 groups that received SEMS, PU-SEMS or EN-SEMS. Computed tomography and sacrifice were performed as scheduled. Haematoxylin–eosin and Masson’s trichrome staining protocols were performed for pathological analysis. The data for tracheal ventilation area ratio, qualitative histological scoring, number of epithelial layers, and thicknesses of papillary projection and submucosa were documented and statistically analysed. All stents were successfully placed under the guidance of fluoroscopy without complications. Post-stenting 3 and 7 days, computed tomography revealed that the fully expandable EN-SEMS was similar to the SEMS and PU-SEMS. The mean stented tissue score in the SEMS group was higher than those of both the PU-SEMS and EN-SEMS groups at 3 days post-stenting. The pathological findings suggested that there was no papillary projection formation 3 days after stent placement. The thickness of papillary projection in the SEMS group was significantly higher than those of the PU-SEMS and EN-SEMS groups at 7 days post-stenting. After stenting 4 weeks, the tracheal ventilation area ratio of SEMS, PU-SEMS and EN-SEMS was 0.214 ± 0.021, 0.453 ± 0.028 and 0.619 ± 0.033, respectively. There were significant between-group differences. In conclusion, the stent-induced granulation tissue formation in EN-SEMS is less severe than that of PU-SEMS and SEMS. EN-SEMS has smaller radial force, and the tracheal ventilation ratio after stent placement better than that of PU-SEMS.Yahua LiMengde LiXiaofeng WangYuhui WangChang LiYanan ZhaoZhaonan LiJianjian ChenJing LiKewei RenZongming LiJianzhuang RenXinwei HanQian LiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021) |
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Medicine R Science Q Yahua Li Mengde Li Xiaofeng Wang Yuhui Wang Chang Li Yanan Zhao Zhaonan Li Jianjian Chen Jing Li Kewei Ren Zongming Li Jianzhuang Ren Xinwei Han Qian Li Comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea |
| description |
Abstract To compare stent-induced granulation tissue hyperplasia of bare (SEMS), polyurethane-covered (PU-SEMS) and electrospun nanofibre-covered (EN-SEMS) self-expandable metallic stents in the rabbit trachea. Twenty-seven rabbits were randomly assigned to 3 groups that received SEMS, PU-SEMS or EN-SEMS. Computed tomography and sacrifice were performed as scheduled. Haematoxylin–eosin and Masson’s trichrome staining protocols were performed for pathological analysis. The data for tracheal ventilation area ratio, qualitative histological scoring, number of epithelial layers, and thicknesses of papillary projection and submucosa were documented and statistically analysed. All stents were successfully placed under the guidance of fluoroscopy without complications. Post-stenting 3 and 7 days, computed tomography revealed that the fully expandable EN-SEMS was similar to the SEMS and PU-SEMS. The mean stented tissue score in the SEMS group was higher than those of both the PU-SEMS and EN-SEMS groups at 3 days post-stenting. The pathological findings suggested that there was no papillary projection formation 3 days after stent placement. The thickness of papillary projection in the SEMS group was significantly higher than those of the PU-SEMS and EN-SEMS groups at 7 days post-stenting. After stenting 4 weeks, the tracheal ventilation area ratio of SEMS, PU-SEMS and EN-SEMS was 0.214 ± 0.021, 0.453 ± 0.028 and 0.619 ± 0.033, respectively. There were significant between-group differences. In conclusion, the stent-induced granulation tissue formation in EN-SEMS is less severe than that of PU-SEMS and SEMS. EN-SEMS has smaller radial force, and the tracheal ventilation ratio after stent placement better than that of PU-SEMS. |
| format |
article |
| author |
Yahua Li Mengde Li Xiaofeng Wang Yuhui Wang Chang Li Yanan Zhao Zhaonan Li Jianjian Chen Jing Li Kewei Ren Zongming Li Jianzhuang Ren Xinwei Han Qian Li |
| author_facet |
Yahua Li Mengde Li Xiaofeng Wang Yuhui Wang Chang Li Yanan Zhao Zhaonan Li Jianjian Chen Jing Li Kewei Ren Zongming Li Jianzhuang Ren Xinwei Han Qian Li |
| author_sort |
Yahua Li |
| title |
Comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea |
| title_short |
Comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea |
| title_full |
Comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea |
| title_fullStr |
Comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea |
| title_full_unstemmed |
Comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea |
| title_sort |
comparison of three kinds of self-expandable metallic stents induced granulation tissue hyperplasia in the rabbit trachea |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/25e2e301d5774acaa9d8d0097a0f4a0a |
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