scholarly journals A novel approach to esophageal stent removal in the setting of proximal stenosis and failure of the primary retrieval mechanism

Endoscopy ◽  
2015 ◽  
Vol 47 (S 01) ◽  
pp. E129-E130 ◽  
Author(s):  
Jochen Weigt ◽  
Neven Barsic ◽  
Peter Malfertheiner
2017 ◽  
Vol 85 (5) ◽  
pp. AB149
Author(s):  
Tomas DaVee ◽  
Tejas Kirtane ◽  
Aman Deep ◽  
Laura G. Romero ◽  
Liben D. Mahometano ◽  
...  

2018 ◽  
Vol 23 ◽  
pp. 29-30
Author(s):  
Wan Hsin Hsu ◽  
Kuen Bao Chen ◽  
Kin Shing Poon ◽  
Ju Hsin Chang

ASVIDE ◽  
2017 ◽  
Vol 4 ◽  
pp. 423-423
Author(s):  
Anne S. van Drumpt ◽  
Hidde M. Kroon ◽  
Frank Grüne ◽  
Robert van Thiel ◽  
Manon C. W. Spaander ◽  
...  

Biomaterials ◽  
2015 ◽  
Vol 53 ◽  
pp. 592-599 ◽  
Author(s):  
Jieying Liu ◽  
Zhongmin Wang ◽  
Keqin Wu ◽  
Jing Li ◽  
Weiluan Chen ◽  
...  

2006 ◽  
Vol 12 (1) ◽  
pp. 69-72 ◽  
Author(s):  
S. Doganay ◽  
K. Sarac ◽  
M.C. Miman ◽  
N. Karadag ◽  
Y. Cokkeser

A Song's nasolacrimal duct stent was placed in a patient with epiphora due to primary nasolacrimal duct obstruction and the stent was kept for 32 months. Mitomycin C 0.02% eye drops four times a day were prescribed for four weeks following polyurethane stent placement procedure. No epiphora-related complaints occurred for thirty months after then the epiphora started. Nasolacrimal stent was removed from nasal cavity endoscopially and the tissues within the extruded stent were examined histopathologically. The patient's complaints were relieved following stent removal. Dacryocystogram revealed normal passage and a filling defect within the lacrimal sac. Macroscopic evaluation of the stent revealed a firm mass in the stent mushroom, causing complete obstruction. Pathological examination of the mass revealed chronic inflammation, increased connective tissue and vascular proliferation. Nasolacrimal polyurethane stents can be removed easily by nasal approach. Nasolacrimal passage may be left open temporarily after stent removal. The use of Mitomycin C drop is a novel approach in nasolacrimal stent placement cases. However, when the long-term results of endoscopic and external dacryocystorhinostomy are considered, further research is needed on the biocompatibility of stent material.


2021 ◽  
Author(s):  
Shuai Wang ◽  
Meipan Yin ◽  
Yaozhen Ma ◽  
Meng Wang ◽  
Yalin Tong ◽  
...  

Abstract Background: Treatment of complications after esophageal stent placement and methods for removal of stents need to be improved. The purpose of this study was to evaluate the safety and efficacy of stent-in-stent (SIS) removal of esophageal stent under fluoroscopy.Methods: This study retrospectively analyzed the clinical data of consecutive patients undergoing esophageal stent removal by SIS under fluoroscopy. Under awake condition, local anesthesia, and fluoroscopic monitoring, a second esophageal stent was placed in the first esophageal stent. Four weeks later, both esophageal stents were removed by the SIS technique under fluoroscopy.Results: A total of 12 patients were treated by the SIS removal technique. In 10 patients, the first esophageal stent was easily removed by the SIS method; in the other 2 patients, stent fracture occurred, and some residual nitinol wire had to be removed endoscopically. No serious complications occurred in any patient.Conclusions: The SIS removal technique appears to be a safe and effective method for removal of embedded esophageal metallic stents.


2013 ◽  
Vol 77 (3) ◽  
pp. 496-497 ◽  
Author(s):  
Albert J. Bredenoord ◽  
Jacques J. Bergman ◽  
Paul Fockens

2019 ◽  
Vol 476 (24) ◽  
pp. 3705-3719 ◽  
Author(s):  
Avani Vyas ◽  
Umamaheswar Duvvuri ◽  
Kirill Kiselyov

Platinum-containing drugs such as cisplatin and carboplatin are routinely used for the treatment of many solid tumors including squamous cell carcinoma of the head and neck (SCCHN). However, SCCHN resistance to platinum compounds is well documented. The resistance to platinum has been linked to the activity of divalent transporter ATP7B, which pumps platinum from the cytoplasm into lysosomes, decreasing its concentration in the cytoplasm. Several cancer models show increased expression of ATP7B; however, the reason for such an increase is not known. Here we show a strong positive correlation between mRNA levels of TMEM16A and ATP7B in human SCCHN tumors. TMEM16A overexpression and depletion in SCCHN cell lines caused parallel changes in the ATP7B mRNA levels. The ATP7B increase in TMEM16A-overexpressing cells was reversed by suppression of NADPH oxidase 2 (NOX2), by the antioxidant N-Acetyl-Cysteine (NAC) and by copper chelation using cuprizone and bathocuproine sulphonate (BCS). Pretreatment with either chelator significantly increased cisplatin's sensitivity, particularly in the context of TMEM16A overexpression. We propose that increased oxidative stress in TMEM16A-overexpressing cells liberates the chelated copper in the cytoplasm, leading to the transcriptional activation of ATP7B expression. This, in turn, decreases the efficacy of platinum compounds by promoting their vesicular sequestration. We think that such a new explanation of the mechanism of SCCHN tumors’ platinum resistance identifies novel approach to treating these tumors.


2020 ◽  
Vol 51 (3) ◽  
pp. 544-560 ◽  
Author(s):  
Kimberly A. Murphy ◽  
Emily A. Diehm

Purpose Morphological interventions promote gains in morphological knowledge and in other oral and written language skills (e.g., phonological awareness, vocabulary, reading, and spelling), yet we have a limited understanding of critical intervention features. In this clinical focus article, we describe a relatively novel approach to teaching morphology that considers its role as the key organizing principle of English orthography. We also present a clinical example of such an intervention delivered during a summer camp at a university speech and hearing clinic. Method Graduate speech-language pathology students provided a 6-week morphology-focused orthographic intervention to children in first through fourth grade ( n = 10) who demonstrated word-level reading and spelling difficulties. The intervention focused children's attention on morphological families, teaching how morphology is interrelated with phonology and etymology in English orthography. Results Comparing pre- and posttest scores, children demonstrated improvement in reading and/or spelling abilities, with the largest gains observed in spelling affixes within polymorphemic words. Children and their caregivers reacted positively to the intervention. Therefore, data from the camp offer preliminary support for teaching morphology within the context of written words, and the intervention appears to be a feasible approach for simultaneously increasing morphological knowledge, reading, and spelling. Conclusion Children with word-level reading and spelling difficulties may benefit from a morphology-focused orthographic intervention, such as the one described here. Research on the approach is warranted, and clinicians are encouraged to explore its possible effectiveness in their practice. Supplemental Material https://doi.org/10.23641/asha.12290687


Sign in / Sign up

Export Citation Format

Share Document