[Gore-tex covering of ultraflex stent and its usefulness for malignant esophageal stenosis: preliminary clinical results].
Malignant esophageal stenoses develop esophagorespiratory fistulae or perforations so frequently that esophageal stents must be required. We devised a covered stent with a thin Gore-Tex sheet and a nitinol stent system, Ultraflex, without increasing the size of the introducer assembly. Nine patients with malignant esophageal stenoses, including seven patients with perforation or fistulation, were carefully treated with the covered stent. All stent deployments were successfully carried out under fluoroscopic guidance. The average time required for full self-expansion was two weeks. The average grade of dysphagia improved from 3.7 to 1.2. Clinical symptoms due to esophagorespiratory fistulae were improved in three of four patients. No clinical or technical complications, such as migration, were observed, but a fistula developed at the bare site of the stent. This covering method for the flexible stent was simple and safe, and was considered to be useful in the treatment of malignant esophageal stenosis.
Department of Radiology, Wakayama Medical College.
K
K
Kishi
T
T
Sonomura
M
M
Sato
M
M
Kimura
Y
Y
Shioyama
N
N
Nishida
T
T
Takeuchi
N
N
Kawai
H
H
Minamiguchi
M
M
Nakai
D000230:Adenocarcinoma / Q000150:complications; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000150:complications; D003680:Deglutition Disorders / Q000209:etiology / Q000628:therapy; D004938:Esophageal Neoplasms / Q000150:complications; D004940:Esophageal Stenosis / Q000209:etiology / Q000628:therapy*; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications; D008297:Male; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D015607:Stents
D011138:Polytetrafluoroethylene