scholarly journals Metallic Stents for Proximal Tracheal Stenosis: Is It Worth the Risk?

2012 ◽  
Vol 2012 ◽  
pp. 1-3 ◽  
Author(s):  
Sandeep Bansal ◽  
Shruti Dhingra ◽  
Babita Ghai ◽  
Ashok K. Gupta

Objective. To demonstrate the risk associated with blocked proximal tracheal stents when a patient presents with acute respiratory distress, with blockage of stent and what is the best management we can offer without damage to the stent and its associated complications.Case Report. A 22-yr-old, male patient, presented in severe respiratory distress. He had history of corrosive poisoning for which he was tracheotomised. A stainless steel wire mesh stent was placed in the trachea, from the subglottis, to just above the carina. One month later, he presented with a critically compromised airway with severe respiratory distress. Emergency tracheostomy was done and the metallic stent had to be cut open, in order to provide an airway.Conclusion. Management of blocked proximal stents with patient in respiratory distress remains a challenge. Formation of granulation tissue is common and fibreoptic bronchoscopic assisted intubation may not always be possible. A regular follow up of all patients with stents is essential. Placement of stents within a few centimetres of cricotracheal junction should not be encouraged for long term indications.

2012 ◽  
Vol 562-564 ◽  
pp. 56-59 ◽  
Author(s):  
Jian Zhuang ◽  
Meng Meng Du ◽  
Heng Zhi Cai ◽  
Ya Jun Zhang ◽  
Da Ming Wu

A facile method for manufacturing super hydrophobic surfaces is presented using the stainless steel wire mesh as templates. The rough surfaces of polymers including polycarbonate, polypropylene and PMMA are prepared with hot embossing on different specifications of stainless steel wire mesh. Scanning electron microscopy (SEM) results reveal that the surfaces roughness of the polymers can be controlled by selecting templates. Contact angle measurement shows that the water contact angles(WCA) rise with the increase of surface roughness, especially, the water contact angle on the PC surfaces prepared with specifications of 635mesh screen can reach to 152.3°, alias super hydrophobic surfaces.


Author(s):  
Liyue Gao ◽  
Xue Kong ◽  
Danni Meng ◽  
Senlin Yang ◽  
Wanying Guo ◽  
...  

2020 ◽  
Vol 146 (2) ◽  
pp. 04019127 ◽  
Author(s):  
Caizheng Wang ◽  
Krishna Shankar ◽  
Evgeny Morozov ◽  
Karthik Ram Ramakrishnan ◽  
Alan Fien

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