Human Tissue Responses to Metal Stents

Vakil, Nimish; Groß, Ulrich; Bethge, N

doi:10.1016/s1052-5157(18)30178-8

Cited by 50 publications

(28 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stents were removed at 2 months, and of the 4 patients available for follow-up evaluation, 50% did not require further dilations [28]. This experience suggests that expandable metallic stents may ultimately serve as a routine option for the treatment of refractory benign strictures if the stents can be safely removed within 3 months or before the end of the evolutionary process of pressure necrosis and epithelial hyperplasia described by Vakil et al [29].…”

Section: Discussionmentioning

confidence: 80%

“…Vakil et al [29] demonstrated that expected sequelae of metallic stent expansion are pressure necrosis above and below the stricture. As a result of this process, the uncovered ends routinely become incorporated into the mucosa and submucosal layers of the esophageal wall, eventually becoming covered by a pseudomembrane.…”

Section: Discussionmentioning

confidence: 99%

“…This process decreases the tendency for migration, which is welcomed in patients with malignancy. However, these changes of necrosis and granulation tissue can extend into deeper layers of the esophageal wall [6,29], thereby increasing the possibility of secondary stricture formation and fistulization. These changes do not occur to the same degree in covered stents, and most of these evolutionary changes in the esophageal wall are stable after approximately 3 months.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of esophageal expandable metal stents

Low

Kozarek

2003

Surgical Endoscopy

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Removal of esophageal expandable metal stents

Low

Kozarek

2003

Surgical Endoscopy

View full text Add to dashboard Cite

show abstract

“…However, stent placement over a prolonged period can result in hyperplastic tissue overgrowth on both ends of the stent, leading to in-stent restenosis [7][8][9] . Therefore, stents should be removed after an appropriate period after treatment of benign esophageal strictures and fistulae [10][11][12] .…”

Section: Introductionmentioning

confidence: 99%

Plastic tube-assisted gastroscopic removal of embedded esophageal metal stents: A case report

Peng

Kang²,

Lü³

et al. 2013

WJG

View full text Add to dashboard Cite

A patient with stent embedding after placement of an esophageal stent for an esophagobronchial fistula was treated with an ST-E plastic tube inserted into the esophagus to the upper end of the stent using gastroscopy. The gastroscope was guided into the esophagus through the ST-E tube, and an alligator forceps was inserted into the esophagus through the ST-E tube alongside the gastroscope. Under gastroscopy, the stent wire was grasped with the forceps and pulled into the ST-E tube. When resistance was met during withdrawal, the gastroscope was guided further to the esophageal section where the stent was embedded. Biopsy forceps were guided through a biopsy hole in the gastroscope to the embedded stent to remove silicone membranes and connection threads linking the Z-shaped wire mesh. While the lower section of the Z-shaped stent was fixed by the biopsy forceps, the alligator forceps were used to pull the upper section of the metal wire until the Z-shaped metal loops elongated. The wire mesh of the stent was then removed in stages through the ST-E tube. Care was taken to avoid bleeding and perforation. Under the assistance of an ST-E plastic tube, an embedded esophageal metal stent was successfully removed with no bleeding or perforation. The patient experienced an uneventful recovery after surgery. Plastic tube-assisted gastroscopic removal of embedded metal stents can be minimally invasive, safe, and effective.

show abstract

“…Conversely, other materials appear to be completely biocompatible. The extent of an adverse reaction depends upon the individual patient and the particular foreign material but can range from mild inflammation to serious tissue fibrosis (3)(4)(5)(6).…”

mentioning

confidence: 99%

Forensic visualization of foreign matter in human tissue by near‐infrared spectral imaging: Methodology and data mining strategies

et al. 2006

View full text Add to dashboard Cite

Background:Rapidity of data acquisition, high image fidelity and large field of view are of tremendous value when looking for chemical contaminants or for the proverbial “needle in the haystack” – in this case foreign inclusions in histologic sections of biopsy or autopsy tissues. Near infrared chemical imaging is one of three chemical imaging techniques (NIR, MIR and Raman) based on vibrational spectroscopy, and provides distinct technical advantages for this application.Methods:We have chosen to utilize and evaluate near infrared (NIR) imaging for studies of foreign materials in tissue because the experimental configuration is relatively simple, data collection is rapid, and large sample areas can be screened with high image fidelity and spatial resolution.Results:We have shown that NIR imaging can readily find and identify silicone gel inclusions in biological tissue samples. Additionally, preliminary results indicate that spectral signatures in the data set are also potentially sensitive to structural changes in the surrounding tissue that may be induced by the foreign body.Conclusions:NIR chemical imaging is a powerful, non‐destructive tool for localization and identifying foreign contaminants in biological tissue. Preliminary results indicate that NIR imaging is also sensitive enough to differentiate tissue types (perhaps based on collagen structural differences), and provide data on the spatial localization of these components. © 2006 International Society for Analytical Cytology

show abstract

Human Tissue Responses to Metal Stents

Cited by 50 publications

References 20 publications

Removal of esophageal expandable metal stents

Removal of esophageal expandable metal stents

Plastic tube-assisted gastroscopic removal of embedded esophageal metal stents: A case report

Forensic visualization of foreign matter in human tissue by near‐infrared spectral imaging: Methodology and data mining strategies

Contact Info

Product

Resources

About