+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

A new design of the esophageal Wallstent endoprosthesis resistant to distal migration



A new design of the esophageal Wallstent endoprosthesis resistant to distal migration



Ajr. American Journal of Roentgenology 170(6): 1477-1481



Because plastic-covered metallic stents used in the palliation of patients with unresectable esophageal cancer are associated with significant rates of migration, particularly when the lower end of the stent projects into the gastric fundus, the purpose of this study was to establish whether two new prototype designs of the Wallstent esophageal endoprosthesis are prone to migration. A cylindrical stent and a conical stent were studied. Both designs included plastic covering inside the metallic mesh. In addition, the conical device incorporated a variation in the braiding angle between the upper and lower parts of the endoprosthesis. Ten conical stents and eight cylindrical stents were inserted in 18 patients with tumors involving the gastroesophageal junction who were followed up with esophagography and endoscopy. All insertions of stents were successful. Two cylindrical stents (25%) migrated distally. Two conical stents (20%) migrated proximally. One perforation occurred that was associated with distal migration of a cylindrical stent. The frequency of distal migration of cylindrical stents is unacceptably high. Conical stents are resistant to distal migration, although improvements in design are required to deal with the problem of proximal migration.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 045079871

Download citation: RISBibTeXText

PMID: 9609156

DOI: 10.2214/ajr.170.6.9609156


Related references

Palliation of inoperable esophageal carcinoma with the wallstent endoprosthesis. Annals Of Thoracic Surgery. 62(6): 1603-1607, 1996

Percutaneously placed Wallstent endoprosthesis in patients with malignant distal biliary obstruction. British Journal of Surgery 80(9): 1185-1187, 1993

Yag laser and wallstent endoprosthesis for palliation of esophageal cancer a pilot study. Scandinavian Journal of Gastroenterology Supplement 25(176): 74, 1990

Emphysematous cholecystitis after endoscopic wallstent placement complicated by distal migration of the stent. Endoscopy 27(9): 704-706, 1995

Transcutaneous endoprosthesis of iliac arteries The first clinical experience with a iliac wallstent endoprosthesis. Kardiologiya 33(8): 78-80, 1993

Percutaneous endoprosthesis of the iliac arteries. The first clinical trial of the use of the Iliac Wallstent endoprosthesis. Kardiologiia 33(8): 78-80, 1993

A case of intestinal obstruction after migration of esophageal endoprosthesis. Minerva Chirurgica 54(6): 433-436, 1999

The wallstent endoprosthesis. Gastrointestinal Endoscopy Clinics of North America 9(3): 373-381, 1999

Image of the month. Jejunal diverticular perforation secondary to delayed distal migration of biliary endoprosthesis. Archives of Surgery 146(4): 483-484, 2011

"Wallstent" endoprosthesis in recurrent urethral stricture in men. Annales D'urologie 24(5): 421-424, 1990

Wallstent metallic biliary endoprosthesis: MR imaging characteristics. Radiology 184(3): 874-876, 1992

Self-expanding wallstent endoprosthesis for malignant ureteral obstruction. Journal of Endourology 11(6): 441-447, 1998

Treatment of iliac artery stenoses with the Wallstent endoprosthesis. Ajr. American Journal of Roentgenology 154(3): 613-616, 1990

Renal artery stent placement with use of the Wallstent endoprosthesis. Radiology 179(2): 457-462, 1991